Delineation of recurrent glioblastoma by whole brain spectroscopic magnetic resonance imaging

Background Glioblastoma (GBM) cellularity correlates with whole brain spectroscopic MRI (sMRI) generated relative choline to N-Acetyl-Aspartate ratio (rChoNAA) mapping. In recurrent GBM (rGBM), tumor volume (TV) delineation is challenging and rChoNAA maps may assist with re-RT targeting. Methods Fou...
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Autor*in:	Bell, Jonathan B. [verfasserIn] Jin, William Goryawala, Mohammed Z. Azzam, Gregory A. Abramowitz, Matthew C. Diwanji, Tejan Ivan, Michael E. del Pilar Guillermo Prieto Eibl, Maria de la Fuente, Macarena I. Mellon, Eric A.

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Recurrent glioblastoma Spectroscopic MRI Re-irradiation Glioblastoma

Anmerkung:	© The Author(s) 2023

Übergeordnetes Werk:	Enthalten in: Radiation oncology - London : BioMed Central, 2006, 18(2023), 1 vom: 22. Feb.
Übergeordnetes Werk:	volume:18 ; year:2023 ; number:1 ; day:22 ; month:02

Links:	Volltext

DOI / URN:	10.1186/s13014-023-02219-2

Katalog-ID:	SPR051487357

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520			\|a Background Glioblastoma (GBM) cellularity correlates with whole brain spectroscopic MRI (sMRI) generated relative choline to N-Acetyl-Aspartate ratio (rChoNAA) mapping. In recurrent GBM (rGBM), tumor volume (TV) delineation is challenging and rChoNAA maps may assist with re-RT targeting. Methods Fourteen rGBM patients underwent sMRI in a prospective study. Whole brain sMRI was performed to generate rChoNAA maps. TVs were delineated by the union of rChoNAA ratio over 2 (rChoNAA > 2) on sMRI and T1PC. rChoNAA > 2 volumes were compared with multiparametric MRI sequences including T1PC, T2/FLAIR, diffusion-restriction on apparent diffusion coefficient (ADC) maps, and perfusion relative cerebral blood volume (rCBV). Results rChoNAA > 2 (mean 27.6 cc, range 6.6–79.1 cc) was different from other imaging modalities (P ≤ 0.05). Mean T1PC volumes were 10.7 cc (range 1.2–31.4 cc). The mean non-overlapping volume of rChoNAA > 2 and T1PC was 29.2 $ cm^{3} $. rChoNAA > 2 was 287% larger (range 23% smaller–873% larger) than T1PC. T2/FLAIR volumes (mean 111.7 cc, range 19.0–232.7 cc) were much larger than other modalities. rCBV volumes (mean 6.2 cc, range 0.2–19.1 cc) and ADC volumes were tiny (mean 0.8 cc, range 0–3.7 cc). Eight in-field failures were observed. Three patients failed outside T1PC but within rChoNAA > 2. No grade 3 toxicities attributable to re-RT were observed. Median progression-free and overall survival for re-RT patients were 6.5 and 7.1 months, respectively. Conclusions Treatment of rGBM may be optimized by sMRI, and failure patterns suggest benefit for dose-escalation within sMRI-delineated volumes. Dose-escalation and radiologic-pathologic studies are underway to confirm the utility of sMRI in rGBM.
650		4	\|a Recurrent glioblastoma \|7 (dpeaa)DE-He213
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650		4	\|a Glioblastoma \|7 (dpeaa)DE-He213
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700	1		\|a del Pilar Guillermo Prieto Eibl, Maria \|4 aut
700	1		\|a de la Fuente, Macarena I. \|4 aut
700	1		\|a Mellon, Eric A. \|4 aut
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allfields	10.1186/s13014-023-02219-2 doi (DE-627)SPR051487357 (SPR)s13014-023-02219-2-e DE-627 ger DE-627 rakwb eng Bell, Jonathan B. verfasserin aut Delineation of recurrent glioblastoma by whole brain spectroscopic magnetic resonance imaging 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2023 Background Glioblastoma (GBM) cellularity correlates with whole brain spectroscopic MRI (sMRI) generated relative choline to N-Acetyl-Aspartate ratio (rChoNAA) mapping. In recurrent GBM (rGBM), tumor volume (TV) delineation is challenging and rChoNAA maps may assist with re-RT targeting. Methods Fourteen rGBM patients underwent sMRI in a prospective study. Whole brain sMRI was performed to generate rChoNAA maps. TVs were delineated by the union of rChoNAA ratio over 2 (rChoNAA > 2) on sMRI and T1PC. rChoNAA > 2 volumes were compared with multiparametric MRI sequences including T1PC, T2/FLAIR, diffusion-restriction on apparent diffusion coefficient (ADC) maps, and perfusion relative cerebral blood volume (rCBV). Results rChoNAA > 2 (mean 27.6 cc, range 6.6–79.1 cc) was different from other imaging modalities (P ≤ 0.05). Mean T1PC volumes were 10.7 cc (range 1.2–31.4 cc). The mean non-overlapping volume of rChoNAA > 2 and T1PC was 29.2 $ cm^{3} $. rChoNAA > 2 was 287% larger (range 23% smaller–873% larger) than T1PC. T2/FLAIR volumes (mean 111.7 cc, range 19.0–232.7 cc) were much larger than other modalities. rCBV volumes (mean 6.2 cc, range 0.2–19.1 cc) and ADC volumes were tiny (mean 0.8 cc, range 0–3.7 cc). Eight in-field failures were observed. Three patients failed outside T1PC but within rChoNAA > 2. No grade 3 toxicities attributable to re-RT were observed. Median progression-free and overall survival for re-RT patients were 6.5 and 7.1 months, respectively. Conclusions Treatment of rGBM may be optimized by sMRI, and failure patterns suggest benefit for dose-escalation within sMRI-delineated volumes. Dose-escalation and radiologic-pathologic studies are underway to confirm the utility of sMRI in rGBM. Recurrent glioblastoma (dpeaa)DE-He213 Spectroscopic MRI (dpeaa)DE-He213 Re-irradiation (dpeaa)DE-He213 Glioblastoma (dpeaa)DE-He213 Jin, William aut Goryawala, Mohammed Z. aut Azzam, Gregory A. aut Abramowitz, Matthew C. aut Diwanji, Tejan aut Ivan, Michael E. aut del Pilar Guillermo Prieto Eibl, Maria aut de la Fuente, Macarena I. aut Mellon, Eric A. aut Enthalten in Radiation oncology London : BioMed Central, 2006 18(2023), 1 vom: 22. Feb. (DE-627)508725739 (DE-600)2224965-5 1748-717X nnns volume:18 year:2023 number:1 day:22 month:02 https://dx.doi.org/10.1186/s13014-023-02219-2 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2023 1 22 02
spelling	10.1186/s13014-023-02219-2 doi (DE-627)SPR051487357 (SPR)s13014-023-02219-2-e DE-627 ger DE-627 rakwb eng Bell, Jonathan B. verfasserin aut Delineation of recurrent glioblastoma by whole brain spectroscopic magnetic resonance imaging 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2023 Background Glioblastoma (GBM) cellularity correlates with whole brain spectroscopic MRI (sMRI) generated relative choline to N-Acetyl-Aspartate ratio (rChoNAA) mapping. In recurrent GBM (rGBM), tumor volume (TV) delineation is challenging and rChoNAA maps may assist with re-RT targeting. Methods Fourteen rGBM patients underwent sMRI in a prospective study. Whole brain sMRI was performed to generate rChoNAA maps. TVs were delineated by the union of rChoNAA ratio over 2 (rChoNAA > 2) on sMRI and T1PC. rChoNAA > 2 volumes were compared with multiparametric MRI sequences including T1PC, T2/FLAIR, diffusion-restriction on apparent diffusion coefficient (ADC) maps, and perfusion relative cerebral blood volume (rCBV). Results rChoNAA > 2 (mean 27.6 cc, range 6.6–79.1 cc) was different from other imaging modalities (P ≤ 0.05). Mean T1PC volumes were 10.7 cc (range 1.2–31.4 cc). The mean non-overlapping volume of rChoNAA > 2 and T1PC was 29.2 $ cm^{3} $. rChoNAA > 2 was 287% larger (range 23% smaller–873% larger) than T1PC. T2/FLAIR volumes (mean 111.7 cc, range 19.0–232.7 cc) were much larger than other modalities. rCBV volumes (mean 6.2 cc, range 0.2–19.1 cc) and ADC volumes were tiny (mean 0.8 cc, range 0–3.7 cc). Eight in-field failures were observed. Three patients failed outside T1PC but within rChoNAA > 2. No grade 3 toxicities attributable to re-RT were observed. Median progression-free and overall survival for re-RT patients were 6.5 and 7.1 months, respectively. Conclusions Treatment of rGBM may be optimized by sMRI, and failure patterns suggest benefit for dose-escalation within sMRI-delineated volumes. Dose-escalation and radiologic-pathologic studies are underway to confirm the utility of sMRI in rGBM. Recurrent glioblastoma (dpeaa)DE-He213 Spectroscopic MRI (dpeaa)DE-He213 Re-irradiation (dpeaa)DE-He213 Glioblastoma (dpeaa)DE-He213 Jin, William aut Goryawala, Mohammed Z. aut Azzam, Gregory A. aut Abramowitz, Matthew C. aut Diwanji, Tejan aut Ivan, Michael E. aut del Pilar Guillermo Prieto Eibl, Maria aut de la Fuente, Macarena I. aut Mellon, Eric A. aut Enthalten in Radiation oncology London : BioMed Central, 2006 18(2023), 1 vom: 22. Feb. (DE-627)508725739 (DE-600)2224965-5 1748-717X nnns volume:18 year:2023 number:1 day:22 month:02 https://dx.doi.org/10.1186/s13014-023-02219-2 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2023 1 22 02
allfields_unstemmed	10.1186/s13014-023-02219-2 doi (DE-627)SPR051487357 (SPR)s13014-023-02219-2-e DE-627 ger DE-627 rakwb eng Bell, Jonathan B. verfasserin aut Delineation of recurrent glioblastoma by whole brain spectroscopic magnetic resonance imaging 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2023 Background Glioblastoma (GBM) cellularity correlates with whole brain spectroscopic MRI (sMRI) generated relative choline to N-Acetyl-Aspartate ratio (rChoNAA) mapping. In recurrent GBM (rGBM), tumor volume (TV) delineation is challenging and rChoNAA maps may assist with re-RT targeting. Methods Fourteen rGBM patients underwent sMRI in a prospective study. Whole brain sMRI was performed to generate rChoNAA maps. TVs were delineated by the union of rChoNAA ratio over 2 (rChoNAA > 2) on sMRI and T1PC. rChoNAA > 2 volumes were compared with multiparametric MRI sequences including T1PC, T2/FLAIR, diffusion-restriction on apparent diffusion coefficient (ADC) maps, and perfusion relative cerebral blood volume (rCBV). Results rChoNAA > 2 (mean 27.6 cc, range 6.6–79.1 cc) was different from other imaging modalities (P ≤ 0.05). Mean T1PC volumes were 10.7 cc (range 1.2–31.4 cc). The mean non-overlapping volume of rChoNAA > 2 and T1PC was 29.2 $ cm^{3} $. rChoNAA > 2 was 287% larger (range 23% smaller–873% larger) than T1PC. T2/FLAIR volumes (mean 111.7 cc, range 19.0–232.7 cc) were much larger than other modalities. rCBV volumes (mean 6.2 cc, range 0.2–19.1 cc) and ADC volumes were tiny (mean 0.8 cc, range 0–3.7 cc). Eight in-field failures were observed. Three patients failed outside T1PC but within rChoNAA > 2. No grade 3 toxicities attributable to re-RT were observed. Median progression-free and overall survival for re-RT patients were 6.5 and 7.1 months, respectively. Conclusions Treatment of rGBM may be optimized by sMRI, and failure patterns suggest benefit for dose-escalation within sMRI-delineated volumes. Dose-escalation and radiologic-pathologic studies are underway to confirm the utility of sMRI in rGBM. Recurrent glioblastoma (dpeaa)DE-He213 Spectroscopic MRI (dpeaa)DE-He213 Re-irradiation (dpeaa)DE-He213 Glioblastoma (dpeaa)DE-He213 Jin, William aut Goryawala, Mohammed Z. aut Azzam, Gregory A. aut Abramowitz, Matthew C. aut Diwanji, Tejan aut Ivan, Michael E. aut del Pilar Guillermo Prieto Eibl, Maria aut de la Fuente, Macarena I. aut Mellon, Eric A. aut Enthalten in Radiation oncology London : BioMed Central, 2006 18(2023), 1 vom: 22. Feb. (DE-627)508725739 (DE-600)2224965-5 1748-717X nnns volume:18 year:2023 number:1 day:22 month:02 https://dx.doi.org/10.1186/s13014-023-02219-2 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2023 1 22 02
allfieldsGer	10.1186/s13014-023-02219-2 doi (DE-627)SPR051487357 (SPR)s13014-023-02219-2-e DE-627 ger DE-627 rakwb eng Bell, Jonathan B. verfasserin aut Delineation of recurrent glioblastoma by whole brain spectroscopic magnetic resonance imaging 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2023 Background Glioblastoma (GBM) cellularity correlates with whole brain spectroscopic MRI (sMRI) generated relative choline to N-Acetyl-Aspartate ratio (rChoNAA) mapping. In recurrent GBM (rGBM), tumor volume (TV) delineation is challenging and rChoNAA maps may assist with re-RT targeting. Methods Fourteen rGBM patients underwent sMRI in a prospective study. Whole brain sMRI was performed to generate rChoNAA maps. TVs were delineated by the union of rChoNAA ratio over 2 (rChoNAA > 2) on sMRI and T1PC. rChoNAA > 2 volumes were compared with multiparametric MRI sequences including T1PC, T2/FLAIR, diffusion-restriction on apparent diffusion coefficient (ADC) maps, and perfusion relative cerebral blood volume (rCBV). Results rChoNAA > 2 (mean 27.6 cc, range 6.6–79.1 cc) was different from other imaging modalities (P ≤ 0.05). Mean T1PC volumes were 10.7 cc (range 1.2–31.4 cc). The mean non-overlapping volume of rChoNAA > 2 and T1PC was 29.2 $ cm^{3} $. rChoNAA > 2 was 287% larger (range 23% smaller–873% larger) than T1PC. T2/FLAIR volumes (mean 111.7 cc, range 19.0–232.7 cc) were much larger than other modalities. rCBV volumes (mean 6.2 cc, range 0.2–19.1 cc) and ADC volumes were tiny (mean 0.8 cc, range 0–3.7 cc). Eight in-field failures were observed. Three patients failed outside T1PC but within rChoNAA > 2. No grade 3 toxicities attributable to re-RT were observed. Median progression-free and overall survival for re-RT patients were 6.5 and 7.1 months, respectively. Conclusions Treatment of rGBM may be optimized by sMRI, and failure patterns suggest benefit for dose-escalation within sMRI-delineated volumes. Dose-escalation and radiologic-pathologic studies are underway to confirm the utility of sMRI in rGBM. Recurrent glioblastoma (dpeaa)DE-He213 Spectroscopic MRI (dpeaa)DE-He213 Re-irradiation (dpeaa)DE-He213 Glioblastoma (dpeaa)DE-He213 Jin, William aut Goryawala, Mohammed Z. aut Azzam, Gregory A. aut Abramowitz, Matthew C. aut Diwanji, Tejan aut Ivan, Michael E. aut del Pilar Guillermo Prieto Eibl, Maria aut de la Fuente, Macarena I. aut Mellon, Eric A. aut Enthalten in Radiation oncology London : BioMed Central, 2006 18(2023), 1 vom: 22. Feb. (DE-627)508725739 (DE-600)2224965-5 1748-717X nnns volume:18 year:2023 number:1 day:22 month:02 https://dx.doi.org/10.1186/s13014-023-02219-2 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2023 1 22 02
allfieldsSound	10.1186/s13014-023-02219-2 doi (DE-627)SPR051487357 (SPR)s13014-023-02219-2-e DE-627 ger DE-627 rakwb eng Bell, Jonathan B. verfasserin aut Delineation of recurrent glioblastoma by whole brain spectroscopic magnetic resonance imaging 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2023 Background Glioblastoma (GBM) cellularity correlates with whole brain spectroscopic MRI (sMRI) generated relative choline to N-Acetyl-Aspartate ratio (rChoNAA) mapping. In recurrent GBM (rGBM), tumor volume (TV) delineation is challenging and rChoNAA maps may assist with re-RT targeting. Methods Fourteen rGBM patients underwent sMRI in a prospective study. Whole brain sMRI was performed to generate rChoNAA maps. TVs were delineated by the union of rChoNAA ratio over 2 (rChoNAA > 2) on sMRI and T1PC. rChoNAA > 2 volumes were compared with multiparametric MRI sequences including T1PC, T2/FLAIR, diffusion-restriction on apparent diffusion coefficient (ADC) maps, and perfusion relative cerebral blood volume (rCBV). Results rChoNAA > 2 (mean 27.6 cc, range 6.6–79.1 cc) was different from other imaging modalities (P ≤ 0.05). Mean T1PC volumes were 10.7 cc (range 1.2–31.4 cc). The mean non-overlapping volume of rChoNAA > 2 and T1PC was 29.2 $ cm^{3} $. rChoNAA > 2 was 287% larger (range 23% smaller–873% larger) than T1PC. T2/FLAIR volumes (mean 111.7 cc, range 19.0–232.7 cc) were much larger than other modalities. rCBV volumes (mean 6.2 cc, range 0.2–19.1 cc) and ADC volumes were tiny (mean 0.8 cc, range 0–3.7 cc). Eight in-field failures were observed. Three patients failed outside T1PC but within rChoNAA > 2. No grade 3 toxicities attributable to re-RT were observed. Median progression-free and overall survival for re-RT patients were 6.5 and 7.1 months, respectively. Conclusions Treatment of rGBM may be optimized by sMRI, and failure patterns suggest benefit for dose-escalation within sMRI-delineated volumes. Dose-escalation and radiologic-pathologic studies are underway to confirm the utility of sMRI in rGBM. Recurrent glioblastoma (dpeaa)DE-He213 Spectroscopic MRI (dpeaa)DE-He213 Re-irradiation (dpeaa)DE-He213 Glioblastoma (dpeaa)DE-He213 Jin, William aut Goryawala, Mohammed Z. aut Azzam, Gregory A. aut Abramowitz, Matthew C. aut Diwanji, Tejan aut Ivan, Michael E. aut del Pilar Guillermo Prieto Eibl, Maria aut de la Fuente, Macarena I. aut Mellon, Eric A. aut Enthalten in Radiation oncology London : BioMed Central, 2006 18(2023), 1 vom: 22. Feb. (DE-627)508725739 (DE-600)2224965-5 1748-717X nnns volume:18 year:2023 number:1 day:22 month:02 https://dx.doi.org/10.1186/s13014-023-02219-2 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2023 1 22 02
language	English
source	Enthalten in Radiation oncology 18(2023), 1 vom: 22. Feb. volume:18 year:2023 number:1 day:22 month:02
sourceStr	Enthalten in Radiation oncology 18(2023), 1 vom: 22. Feb. volume:18 year:2023 number:1 day:22 month:02
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Recurrent glioblastoma Spectroscopic MRI Re-irradiation Glioblastoma
isfreeaccess_bool	true
container_title	Radiation oncology
authorswithroles_txt_mv	Bell, Jonathan B. @@aut@@ Jin, William @@aut@@ Goryawala, Mohammed Z. @@aut@@ Azzam, Gregory A. @@aut@@ Abramowitz, Matthew C. @@aut@@ Diwanji, Tejan @@aut@@ Ivan, Michael E. @@aut@@ del Pilar Guillermo Prieto Eibl, Maria @@aut@@ de la Fuente, Macarena I. @@aut@@ Mellon, Eric A. @@aut@@
publishDateDaySort_date	2023-02-22T00:00:00Z
hierarchy_top_id	508725739
id	SPR051487357
language_de	englisch
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In recurrent GBM (rGBM), tumor volume (TV) delineation is challenging and rChoNAA maps may assist with re-RT targeting. Methods Fourteen rGBM patients underwent sMRI in a prospective study. Whole brain sMRI was performed to generate rChoNAA maps. TVs were delineated by the union of rChoNAA ratio over 2 (rChoNAA > 2) on sMRI and T1PC. rChoNAA > 2 volumes were compared with multiparametric MRI sequences including T1PC, T2/FLAIR, diffusion-restriction on apparent diffusion coefficient (ADC) maps, and perfusion relative cerebral blood volume (rCBV). Results rChoNAA > 2 (mean 27.6 cc, range 6.6–79.1 cc) was different from other imaging modalities (P ≤ 0.05). Mean T1PC volumes were 10.7 cc (range 1.2–31.4 cc). The mean non-overlapping volume of rChoNAA > 2 and T1PC was 29.2 $ cm^{3} $. rChoNAA > 2 was 287% larger (range 23% smaller–873% larger) than T1PC. T2/FLAIR volumes (mean 111.7 cc, range 19.0–232.7 cc) were much larger than other modalities. rCBV volumes (mean 6.2 cc, range 0.2–19.1 cc) and ADC volumes were tiny (mean 0.8 cc, range 0–3.7 cc). Eight in-field failures were observed. Three patients failed outside T1PC but within rChoNAA > 2. No grade 3 toxicities attributable to re-RT were observed. Median progression-free and overall survival for re-RT patients were 6.5 and 7.1 months, respectively. Conclusions Treatment of rGBM may be optimized by sMRI, and failure patterns suggest benefit for dose-escalation within sMRI-delineated volumes. 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author	Bell, Jonathan B.
spellingShingle	Bell, Jonathan B. misc Recurrent glioblastoma misc Spectroscopic MRI misc Re-irradiation misc Glioblastoma Delineation of recurrent glioblastoma by whole brain spectroscopic magnetic resonance imaging
authorStr	Bell, Jonathan B.
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topic_title	Delineation of recurrent glioblastoma by whole brain spectroscopic magnetic resonance imaging Recurrent glioblastoma (dpeaa)DE-He213 Spectroscopic MRI (dpeaa)DE-He213 Re-irradiation (dpeaa)DE-He213 Glioblastoma (dpeaa)DE-He213
topic	misc Recurrent glioblastoma misc Spectroscopic MRI misc Re-irradiation misc Glioblastoma
topic_unstemmed	misc Recurrent glioblastoma misc Spectroscopic MRI misc Re-irradiation misc Glioblastoma
topic_browse	misc Recurrent glioblastoma misc Spectroscopic MRI misc Re-irradiation misc Glioblastoma
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title	Delineation of recurrent glioblastoma by whole brain spectroscopic magnetic resonance imaging
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title_full	Delineation of recurrent glioblastoma by whole brain spectroscopic magnetic resonance imaging
author_sort	Bell, Jonathan B.
journal	Radiation oncology
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author_browse	Bell, Jonathan B. Jin, William Goryawala, Mohammed Z. Azzam, Gregory A. Abramowitz, Matthew C. Diwanji, Tejan Ivan, Michael E. del Pilar Guillermo Prieto Eibl, Maria de la Fuente, Macarena I. Mellon, Eric A.
container_volume	18
format_se	Elektronische Aufsätze
author-letter	Bell, Jonathan B.
doi_str_mv	10.1186/s13014-023-02219-2
title_sort	delineation of recurrent glioblastoma by whole brain spectroscopic magnetic resonance imaging
title_auth	Delineation of recurrent glioblastoma by whole brain spectroscopic magnetic resonance imaging
abstract	Background Glioblastoma (GBM) cellularity correlates with whole brain spectroscopic MRI (sMRI) generated relative choline to N-Acetyl-Aspartate ratio (rChoNAA) mapping. In recurrent GBM (rGBM), tumor volume (TV) delineation is challenging and rChoNAA maps may assist with re-RT targeting. Methods Fourteen rGBM patients underwent sMRI in a prospective study. Whole brain sMRI was performed to generate rChoNAA maps. TVs were delineated by the union of rChoNAA ratio over 2 (rChoNAA > 2) on sMRI and T1PC. rChoNAA > 2 volumes were compared with multiparametric MRI sequences including T1PC, T2/FLAIR, diffusion-restriction on apparent diffusion coefficient (ADC) maps, and perfusion relative cerebral blood volume (rCBV). Results rChoNAA > 2 (mean 27.6 cc, range 6.6–79.1 cc) was different from other imaging modalities (P ≤ 0.05). Mean T1PC volumes were 10.7 cc (range 1.2–31.4 cc). The mean non-overlapping volume of rChoNAA > 2 and T1PC was 29.2 $ cm^{3} $. rChoNAA > 2 was 287% larger (range 23% smaller–873% larger) than T1PC. T2/FLAIR volumes (mean 111.7 cc, range 19.0–232.7 cc) were much larger than other modalities. rCBV volumes (mean 6.2 cc, range 0.2–19.1 cc) and ADC volumes were tiny (mean 0.8 cc, range 0–3.7 cc). Eight in-field failures were observed. Three patients failed outside T1PC but within rChoNAA > 2. No grade 3 toxicities attributable to re-RT were observed. Median progression-free and overall survival for re-RT patients were 6.5 and 7.1 months, respectively. Conclusions Treatment of rGBM may be optimized by sMRI, and failure patterns suggest benefit for dose-escalation within sMRI-delineated volumes. Dose-escalation and radiologic-pathologic studies are underway to confirm the utility of sMRI in rGBM. © The Author(s) 2023
abstractGer	Background Glioblastoma (GBM) cellularity correlates with whole brain spectroscopic MRI (sMRI) generated relative choline to N-Acetyl-Aspartate ratio (rChoNAA) mapping. In recurrent GBM (rGBM), tumor volume (TV) delineation is challenging and rChoNAA maps may assist with re-RT targeting. Methods Fourteen rGBM patients underwent sMRI in a prospective study. Whole brain sMRI was performed to generate rChoNAA maps. TVs were delineated by the union of rChoNAA ratio over 2 (rChoNAA > 2) on sMRI and T1PC. rChoNAA > 2 volumes were compared with multiparametric MRI sequences including T1PC, T2/FLAIR, diffusion-restriction on apparent diffusion coefficient (ADC) maps, and perfusion relative cerebral blood volume (rCBV). Results rChoNAA > 2 (mean 27.6 cc, range 6.6–79.1 cc) was different from other imaging modalities (P ≤ 0.05). Mean T1PC volumes were 10.7 cc (range 1.2–31.4 cc). The mean non-overlapping volume of rChoNAA > 2 and T1PC was 29.2 $ cm^{3} $. rChoNAA > 2 was 287% larger (range 23% smaller–873% larger) than T1PC. T2/FLAIR volumes (mean 111.7 cc, range 19.0–232.7 cc) were much larger than other modalities. rCBV volumes (mean 6.2 cc, range 0.2–19.1 cc) and ADC volumes were tiny (mean 0.8 cc, range 0–3.7 cc). Eight in-field failures were observed. Three patients failed outside T1PC but within rChoNAA > 2. No grade 3 toxicities attributable to re-RT were observed. Median progression-free and overall survival for re-RT patients were 6.5 and 7.1 months, respectively. Conclusions Treatment of rGBM may be optimized by sMRI, and failure patterns suggest benefit for dose-escalation within sMRI-delineated volumes. Dose-escalation and radiologic-pathologic studies are underway to confirm the utility of sMRI in rGBM. © The Author(s) 2023
abstract_unstemmed	Background Glioblastoma (GBM) cellularity correlates with whole brain spectroscopic MRI (sMRI) generated relative choline to N-Acetyl-Aspartate ratio (rChoNAA) mapping. In recurrent GBM (rGBM), tumor volume (TV) delineation is challenging and rChoNAA maps may assist with re-RT targeting. Methods Fourteen rGBM patients underwent sMRI in a prospective study. Whole brain sMRI was performed to generate rChoNAA maps. TVs were delineated by the union of rChoNAA ratio over 2 (rChoNAA > 2) on sMRI and T1PC. rChoNAA > 2 volumes were compared with multiparametric MRI sequences including T1PC, T2/FLAIR, diffusion-restriction on apparent diffusion coefficient (ADC) maps, and perfusion relative cerebral blood volume (rCBV). Results rChoNAA > 2 (mean 27.6 cc, range 6.6–79.1 cc) was different from other imaging modalities (P ≤ 0.05). Mean T1PC volumes were 10.7 cc (range 1.2–31.4 cc). The mean non-overlapping volume of rChoNAA > 2 and T1PC was 29.2 $ cm^{3} $. rChoNAA > 2 was 287% larger (range 23% smaller–873% larger) than T1PC. T2/FLAIR volumes (mean 111.7 cc, range 19.0–232.7 cc) were much larger than other modalities. rCBV volumes (mean 6.2 cc, range 0.2–19.1 cc) and ADC volumes were tiny (mean 0.8 cc, range 0–3.7 cc). Eight in-field failures were observed. Three patients failed outside T1PC but within rChoNAA > 2. No grade 3 toxicities attributable to re-RT were observed. Median progression-free and overall survival for re-RT patients were 6.5 and 7.1 months, respectively. Conclusions Treatment of rGBM may be optimized by sMRI, and failure patterns suggest benefit for dose-escalation within sMRI-delineated volumes. Dose-escalation and radiologic-pathologic studies are underway to confirm the utility of sMRI in rGBM. © The Author(s) 2023
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title_short	Delineation of recurrent glioblastoma by whole brain spectroscopic magnetic resonance imaging
url	https://dx.doi.org/10.1186/s13014-023-02219-2
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author2	Jin, William Goryawala, Mohammed Z. Azzam, Gregory A. Abramowitz, Matthew C. Diwanji, Tejan Ivan, Michael E. del Pilar Guillermo Prieto Eibl, Maria de la Fuente, Macarena I. Mellon, Eric A.
author2Str	Jin, William Goryawala, Mohammed Z. Azzam, Gregory A. Abramowitz, Matthew C. Diwanji, Tejan Ivan, Michael E. del Pilar Guillermo Prieto Eibl, Maria de la Fuente, Macarena I. Mellon, Eric A.
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Delineation of recurrent glioblastoma by whole brain spectroscopic magnetic resonance imaging

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