68Ga-PSMA-11 PET/CT-derived metabolic parameters for determination of whole-body tumor burden and treatment response in prostate cancer

Purpose We aimed at evaluating the role of 68 Ga-PSMA-11 PET/CT-derived metabolic parameters for assessment of whole-body tumor burden and its capability to determine therapeutic response in patients with prostate cancer. Methods A total of 142 patients with biochemical recurrence of prostate cancer...

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Veröffentlicht in:European journal of nuclear medicine and molecular imaging 2018-10, Vol.45 (11), p.1862-1872
Hauptverfasser: Schmidkonz, Christian, Cordes, Michael, Schmidt, Daniela, Bäuerle, Tobias, Goetz, Theresa Ida, Beck, Michael, Prante, Olaf, Cavallaro, Alexander, Uder, Michael, Wullich, Bernd, Goebell, Peter, Kuwert, Torsten, Ritt, Philipp
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container_end_page 1872
container_issue 11
container_start_page 1862
container_title European journal of nuclear medicine and molecular imaging
container_volume 45
creator Schmidkonz, Christian
Cordes, Michael
Schmidt, Daniela
Bäuerle, Tobias
Goetz, Theresa Ida
Beck, Michael
Prante, Olaf
Cavallaro, Alexander
Uder, Michael
Wullich, Bernd
Goebell, Peter
Kuwert, Torsten
Ritt, Philipp
description Purpose We aimed at evaluating the role of 68 Ga-PSMA-11 PET/CT-derived metabolic parameters for assessment of whole-body tumor burden and its capability to determine therapeutic response in patients with prostate cancer. Methods A total of 142 patients with biochemical recurrence of prostate cancer underwent PET/CT with [ 68 Ga]Ga-PSMA-HBED-CC ( 68 Ga-PSMA-11). Quantitative assessment of all 641 68 Ga-PSMA-11-positive lesions in the field of view was performed to calculate PSMA-derived parameters, including whole-body PSMA tumor volume (PSMA-TV) and whole-body total lesion PSMA (TL-PSMA), as well as the established SUVmax and SUVmean values. All PET-derived parameters were tested for correlation with serum PSA levels and for association with Gleason scores. In 23 patients who underwent 68 Ga-PSMA-11 PET/CT before and after therapy with either external beam radiation, androgen deprivation, or docetaxel chemotherapy, SUVmax and TL-PSMA were compared to radiographic response assessment of CT images based on RECIST 1.1 criteria and to biochemical response determined by changes of serum PSA levels. Results PSMA-TV and TL-PSMA demonstrated a significant correlation with serum PSA levels ( P  
doi_str_mv 10.1007/s00259-018-4042-z
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Methods A total of 142 patients with biochemical recurrence of prostate cancer underwent PET/CT with [ 68 Ga]Ga-PSMA-HBED-CC ( 68 Ga-PSMA-11). Quantitative assessment of all 641 68 Ga-PSMA-11-positive lesions in the field of view was performed to calculate PSMA-derived parameters, including whole-body PSMA tumor volume (PSMA-TV) and whole-body total lesion PSMA (TL-PSMA), as well as the established SUVmax and SUVmean values. All PET-derived parameters were tested for correlation with serum PSA levels and for association with Gleason scores. In 23 patients who underwent 68 Ga-PSMA-11 PET/CT before and after therapy with either external beam radiation, androgen deprivation, or docetaxel chemotherapy, SUVmax and TL-PSMA were compared to radiographic response assessment of CT images based on RECIST 1.1 criteria and to biochemical response determined by changes of serum PSA levels. Results PSMA-TV and TL-PSMA demonstrated a significant correlation with serum PSA levels ( P  &lt; 0.0001) and TL-PSMA was significantly different for different Gleason scores. The agreement rate between TL-PSMA derived from PET and biochemical response was 87% (95% confidence interval, 0.66–0.97; Cohen’s κ = 0.78; P  &lt; 0.01) and, thus, higher than for SUVmax, which was 74% (95% CI, 0.52–0.90; κ = 0.55; P  &lt; 0.01). Furthermore, agreement with PSA was higher for TL-PSMA and SUVmax than for CT-based response evaluation. Discordant findings between PET and CT were most likely due to limitations of CT and RECIST in rating small lymph nodes as metastases, as well as bone involvement, which was sometimes not detectable in CT. Conclusion 68 Ga-PSMA-11 PET/CT-derived metabolic tumor parameters showed promising results for evaluation of treatment response. Especially, TL-PSMA demonstrated higher agreement rates with biochemical response compared to SUVmax. Larger, ideally prospective trials are needed to help to reveal the full potential of metabolic parameters derived from PET imaging with 68 Ga-PSMA-11.</description><identifier>ISSN: 1619-7070</identifier><identifier>EISSN: 1619-7089</identifier><identifier>DOI: 10.1007/s00259-018-4042-z</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Biochemistry ; Cancer therapies ; Cardiology ; Chemotherapy ; Clinical trials ; Computed tomography ; Confidence intervals ; Deprivation ; Evaluation ; Field of view ; Imaging ; Lesions ; Lymph nodes ; Medicine ; Medicine &amp; Public Health ; Metabolism ; Metastases ; Nuclear Medicine ; Oncology ; Original Article ; Orthopedics ; Parameters ; Patients ; Positron emission ; Prostate cancer ; Radiation ; Radiology ; Tomography ; Tumors</subject><ispartof>European journal of nuclear medicine and molecular imaging, 2018-10, Vol.45 (11), p.1862-1872</ispartof><rights>Springer-Verlag GmbH Germany, part of Springer Nature 2018</rights><rights>European Journal of Nuclear Medicine and Molecular Imaging is a copyright of Springer, (2018). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c279t-3f6ca0448e996b1029f28ee790df870860a834abb51905f4872d5d3c9f7d687d3</citedby><cites>FETCH-LOGICAL-c279t-3f6ca0448e996b1029f28ee790df870860a834abb51905f4872d5d3c9f7d687d3</cites><orcidid>0000-0002-1988-0058</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00259-018-4042-z$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00259-018-4042-z$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Schmidkonz, Christian</creatorcontrib><creatorcontrib>Cordes, Michael</creatorcontrib><creatorcontrib>Schmidt, Daniela</creatorcontrib><creatorcontrib>Bäuerle, Tobias</creatorcontrib><creatorcontrib>Goetz, Theresa Ida</creatorcontrib><creatorcontrib>Beck, Michael</creatorcontrib><creatorcontrib>Prante, Olaf</creatorcontrib><creatorcontrib>Cavallaro, Alexander</creatorcontrib><creatorcontrib>Uder, Michael</creatorcontrib><creatorcontrib>Wullich, Bernd</creatorcontrib><creatorcontrib>Goebell, Peter</creatorcontrib><creatorcontrib>Kuwert, Torsten</creatorcontrib><creatorcontrib>Ritt, Philipp</creatorcontrib><title>68Ga-PSMA-11 PET/CT-derived metabolic parameters for determination of whole-body tumor burden and treatment response in prostate cancer</title><title>European journal of nuclear medicine and molecular imaging</title><addtitle>Eur J Nucl Med Mol Imaging</addtitle><description>Purpose We aimed at evaluating the role of 68 Ga-PSMA-11 PET/CT-derived metabolic parameters for assessment of whole-body tumor burden and its capability to determine therapeutic response in patients with prostate cancer. Methods A total of 142 patients with biochemical recurrence of prostate cancer underwent PET/CT with [ 68 Ga]Ga-PSMA-HBED-CC ( 68 Ga-PSMA-11). Quantitative assessment of all 641 68 Ga-PSMA-11-positive lesions in the field of view was performed to calculate PSMA-derived parameters, including whole-body PSMA tumor volume (PSMA-TV) and whole-body total lesion PSMA (TL-PSMA), as well as the established SUVmax and SUVmean values. All PET-derived parameters were tested for correlation with serum PSA levels and for association with Gleason scores. In 23 patients who underwent 68 Ga-PSMA-11 PET/CT before and after therapy with either external beam radiation, androgen deprivation, or docetaxel chemotherapy, SUVmax and TL-PSMA were compared to radiographic response assessment of CT images based on RECIST 1.1 criteria and to biochemical response determined by changes of serum PSA levels. Results PSMA-TV and TL-PSMA demonstrated a significant correlation with serum PSA levels ( P  &lt; 0.0001) and TL-PSMA was significantly different for different Gleason scores. The agreement rate between TL-PSMA derived from PET and biochemical response was 87% (95% confidence interval, 0.66–0.97; Cohen’s κ = 0.78; P  &lt; 0.01) and, thus, higher than for SUVmax, which was 74% (95% CI, 0.52–0.90; κ = 0.55; P  &lt; 0.01). Furthermore, agreement with PSA was higher for TL-PSMA and SUVmax than for CT-based response evaluation. Discordant findings between PET and CT were most likely due to limitations of CT and RECIST in rating small lymph nodes as metastases, as well as bone involvement, which was sometimes not detectable in CT. Conclusion 68 Ga-PSMA-11 PET/CT-derived metabolic tumor parameters showed promising results for evaluation of treatment response. Especially, TL-PSMA demonstrated higher agreement rates with biochemical response compared to SUVmax. 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Cordes, Michael ; Schmidt, Daniela ; Bäuerle, Tobias ; Goetz, Theresa Ida ; Beck, Michael ; Prante, Olaf ; Cavallaro, Alexander ; Uder, Michael ; Wullich, Bernd ; Goebell, Peter ; Kuwert, Torsten ; Ritt, Philipp</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c279t-3f6ca0448e996b1029f28ee790df870860a834abb51905f4872d5d3c9f7d687d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Biochemistry</topic><topic>Cancer therapies</topic><topic>Cardiology</topic><topic>Chemotherapy</topic><topic>Clinical trials</topic><topic>Computed tomography</topic><topic>Confidence intervals</topic><topic>Deprivation</topic><topic>Evaluation</topic><topic>Field of view</topic><topic>Imaging</topic><topic>Lesions</topic><topic>Lymph nodes</topic><topic>Medicine</topic><topic>Medicine &amp; Public Health</topic><topic>Metabolism</topic><topic>Metastases</topic><topic>Nuclear Medicine</topic><topic>Oncology</topic><topic>Original Article</topic><topic>Orthopedics</topic><topic>Parameters</topic><topic>Patients</topic><topic>Positron emission</topic><topic>Prostate cancer</topic><topic>Radiation</topic><topic>Radiology</topic><topic>Tomography</topic><topic>Tumors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Schmidkonz, Christian</creatorcontrib><creatorcontrib>Cordes, Michael</creatorcontrib><creatorcontrib>Schmidt, Daniela</creatorcontrib><creatorcontrib>Bäuerle, Tobias</creatorcontrib><creatorcontrib>Goetz, Theresa Ida</creatorcontrib><creatorcontrib>Beck, Michael</creatorcontrib><creatorcontrib>Prante, Olaf</creatorcontrib><creatorcontrib>Cavallaro, Alexander</creatorcontrib><creatorcontrib>Uder, Michael</creatorcontrib><creatorcontrib>Wullich, Bernd</creatorcontrib><creatorcontrib>Goebell, Peter</creatorcontrib><creatorcontrib>Kuwert, Torsten</creatorcontrib><creatorcontrib>Ritt, Philipp</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Nursing &amp; 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Methods A total of 142 patients with biochemical recurrence of prostate cancer underwent PET/CT with [ 68 Ga]Ga-PSMA-HBED-CC ( 68 Ga-PSMA-11). Quantitative assessment of all 641 68 Ga-PSMA-11-positive lesions in the field of view was performed to calculate PSMA-derived parameters, including whole-body PSMA tumor volume (PSMA-TV) and whole-body total lesion PSMA (TL-PSMA), as well as the established SUVmax and SUVmean values. All PET-derived parameters were tested for correlation with serum PSA levels and for association with Gleason scores. In 23 patients who underwent 68 Ga-PSMA-11 PET/CT before and after therapy with either external beam radiation, androgen deprivation, or docetaxel chemotherapy, SUVmax and TL-PSMA were compared to radiographic response assessment of CT images based on RECIST 1.1 criteria and to biochemical response determined by changes of serum PSA levels. Results PSMA-TV and TL-PSMA demonstrated a significant correlation with serum PSA levels ( P  &lt; 0.0001) and TL-PSMA was significantly different for different Gleason scores. The agreement rate between TL-PSMA derived from PET and biochemical response was 87% (95% confidence interval, 0.66–0.97; Cohen’s κ = 0.78; P  &lt; 0.01) and, thus, higher than for SUVmax, which was 74% (95% CI, 0.52–0.90; κ = 0.55; P  &lt; 0.01). Furthermore, agreement with PSA was higher for TL-PSMA and SUVmax than for CT-based response evaluation. Discordant findings between PET and CT were most likely due to limitations of CT and RECIST in rating small lymph nodes as metastases, as well as bone involvement, which was sometimes not detectable in CT. Conclusion 68 Ga-PSMA-11 PET/CT-derived metabolic tumor parameters showed promising results for evaluation of treatment response. Especially, TL-PSMA demonstrated higher agreement rates with biochemical response compared to SUVmax. Larger, ideally prospective trials are needed to help to reveal the full potential of metabolic parameters derived from PET imaging with 68 Ga-PSMA-11.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s00259-018-4042-z</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0002-1988-0058</orcidid></addata></record>
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source SpringerLink Journals - AutoHoldings
subjects Biochemistry
Cancer therapies
Cardiology
Chemotherapy
Clinical trials
Computed tomography
Confidence intervals
Deprivation
Evaluation
Field of view
Imaging
Lesions
Lymph nodes
Medicine
Medicine & Public Health
Metabolism
Metastases
Nuclear Medicine
Oncology
Original Article
Orthopedics
Parameters
Patients
Positron emission
Prostate cancer
Radiation
Radiology
Tomography
Tumors
title 68Ga-PSMA-11 PET/CT-derived metabolic parameters for determination of whole-body tumor burden and treatment response in prostate cancer
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