Skip to main content
Top
Published in: Annals of Nuclear Medicine 4/2021

01-04-2021 | Esophageal Cancer | Original Article

Prognostic and predictive values of interim 18F-FDG PET during neoadjuvant chemoradiotherapy for esophageal cancer: a systematic review and meta-analysis

Authors: Sangwon Han, Yong-il Kim, Sungmin Woo, Tae-Hyung Kim, Jin-Sook Ryu

Published in: Annals of Nuclear Medicine | Issue 4/2021

Login to get access

Abstract

Purpose

To determine the prognostic and predictive value of early metabolic response assessed by a change in standardized uptake value (SUV) on interim 18F-FDG PET in patients with esophageal cancer undergoing neoadjuvant chemoradiotherapy.

Methods

PubMed and Embase were searched up until 10 September, 2020, for studies evaluating a change in SUV on interim 18F-FDG PET for predicting a pathologic response, progression-free survival (PFS), or overall survival (OS) in patients with esophageal cancer. The sensitivity and specificity for predicting a pathologic response were pooled using bivariate and hierarchical summary receiver operating characteristic (HSROC) models. Meta-analytic pooled hazard ratios (HRs) and their 95% confidence intervals (CIs) were derived using a random-effects model.

Results

A total of 11 studies (695 patients) were included in the meta-analysis. For nine studies assessing predictive accuracy, the pooled sensitivity and specificity of an early metabolic response for predicting a pathologic response were 0.80 (95% CI 0.61–0.91) and 0.54 (95% CI 0.45–0.63), respectively. The area under the HSROC curve was 0.64 (95% CI 0.60–0.68). Across the nine studies assessing prognostic value, an early metabolic response determined by interim PET showed pooled HRs for predicting PFS and OS of 0.44 (95% CI, 0.30–0.63) and 0.42 (95% CI, 0.31–0.56), respectively.

Conclusion

Change in SUV on interim 18F-FDG PET had significant prognostic value and moderate predictive value for a pathologic response in esophageal cancer treated with neoadjuvant chemoradiotherapy. Interim 18F-FDG PET may help prognostic stratification and guide treatment planning in oncologic practice.
Appendix
Available only for authorised users
Literature
1.
2.
go back to reference van Hagen P, Hulshof MC, van Lanschot JJ, Steyerberg EW, van Berge Henegouwen MI, Wijnhoven BP, et al. Preoperative chemoradiotherapy for esophageal or junctional cancer. N Engl J Med. 2012;366:2074–84.PubMedCrossRef van Hagen P, Hulshof MC, van Lanschot JJ, Steyerberg EW, van Berge Henegouwen MI, Wijnhoven BP, et al. Preoperative chemoradiotherapy for esophageal or junctional cancer. N Engl J Med. 2012;366:2074–84.PubMedCrossRef
3.
go back to reference Ajani JA, D’Amico TA, Bentrem DJ, Chao J, Corvera C, Das P, et al. Esophageal and esophagogastric junction cancers, version 2.2019, NCCN clinical practice guidelines in oncology. J Natl Compr Cancer Netw. 2019;17:855–83.CrossRef Ajani JA, D’Amico TA, Bentrem DJ, Chao J, Corvera C, Das P, et al. Esophageal and esophagogastric junction cancers, version 2.2019, NCCN clinical practice guidelines in oncology. J Natl Compr Cancer Netw. 2019;17:855–83.CrossRef
4.
go back to reference Berger AC, Farma J, Scott WJ, Freedman G, Weiner L, Cheng JD, et al. Complete response to neoadjuvant chemoradiotherapy in esophageal carcinoma is associated with significantly improved survival. J Clin Oncol. 2005;23:4330–7.PubMedCrossRef Berger AC, Farma J, Scott WJ, Freedman G, Weiner L, Cheng JD, et al. Complete response to neoadjuvant chemoradiotherapy in esophageal carcinoma is associated with significantly improved survival. J Clin Oncol. 2005;23:4330–7.PubMedCrossRef
5.
go back to reference Bedenne L, Michel P, Bouche O, Milan C, Mariette C, Conroy T, et al. Chemoradiation followed by surgery compared with chemoradiation alone in squamous cancer of the esophagus: FFCD 9102. J Clin Oncol. 2007;25:1160–8.PubMedCrossRef Bedenne L, Michel P, Bouche O, Milan C, Mariette C, Conroy T, et al. Chemoradiation followed by surgery compared with chemoradiation alone in squamous cancer of the esophagus: FFCD 9102. J Clin Oncol. 2007;25:1160–8.PubMedCrossRef
6.
go back to reference Monjazeb AM, Riedlinger G, Aklilu M, Geisinger KR, Mishra G, Isom S, et al. Outcomes of patients with esophageal cancer staged with [(18)F]fluorodeoxyglucose positron emission tomography (FDG-PET): can postchemoradiotherapy FDG-PET predict the utility of resection? J Clin Oncol. 2010;28:4714–21.PubMedPubMedCentralCrossRef Monjazeb AM, Riedlinger G, Aklilu M, Geisinger KR, Mishra G, Isom S, et al. Outcomes of patients with esophageal cancer staged with [(18)F]fluorodeoxyglucose positron emission tomography (FDG-PET): can postchemoradiotherapy FDG-PET predict the utility of resection? J Clin Oncol. 2010;28:4714–21.PubMedPubMedCentralCrossRef
7.
go back to reference Jeong Y, Kim JH, Kim SB, Yoon DH, Park SI, Kim YH, et al. Role of surgical resection in complete responders on FDG-PET after chemoradiotherapy for locally advanced esophageal squamous cell carcinoma. J Surg Oncol. 2014;109:472–7.PubMedCrossRef Jeong Y, Kim JH, Kim SB, Yoon DH, Park SI, Kim YH, et al. Role of surgical resection in complete responders on FDG-PET after chemoradiotherapy for locally advanced esophageal squamous cell carcinoma. J Surg Oncol. 2014;109:472–7.PubMedCrossRef
8.
go back to reference Greally M, Chou JF, Molena D, Rusch VW, Bains MS, Park BJ, et al. Positron-emission tomography scan-directed chemoradiation for esophageal squamous cell carcinoma: no benefit for a change in chemotherapy in positron-emission tomography nonresponders. J Thorac Oncol. 2019;14:540–6.PubMedCrossRef Greally M, Chou JF, Molena D, Rusch VW, Bains MS, Park BJ, et al. Positron-emission tomography scan-directed chemoradiation for esophageal squamous cell carcinoma: no benefit for a change in chemotherapy in positron-emission tomography nonresponders. J Thorac Oncol. 2019;14:540–6.PubMedCrossRef
9.
go back to reference Hammoudi N, Hennequin C, Vercellino L, Costantini A, Valverde A, Cattan P, et al. Early metabolic response to chemoradiotherapy by interim FDG PET/CT is associated with better overall survival and histological response in esophageal cancers. Dig Liver Dis. 2019;51:887–93.PubMedCrossRef Hammoudi N, Hennequin C, Vercellino L, Costantini A, Valverde A, Cattan P, et al. Early metabolic response to chemoradiotherapy by interim FDG PET/CT is associated with better overall survival and histological response in esophageal cancers. Dig Liver Dis. 2019;51:887–93.PubMedCrossRef
10.
go back to reference Harada K, Wang X, Shimodaira Y, Sagebiel T, Bhutani MS, Lee JH, et al. Early metabolic change after induction chemotherapy predicts histologic response and prognosis in patients with esophageal cancer: secondary analysis of a randomized trial. Target Oncol. 2018;13:99–106.PubMedPubMedCentralCrossRef Harada K, Wang X, Shimodaira Y, Sagebiel T, Bhutani MS, Lee JH, et al. Early metabolic change after induction chemotherapy predicts histologic response and prognosis in patients with esophageal cancer: secondary analysis of a randomized trial. Target Oncol. 2018;13:99–106.PubMedPubMedCentralCrossRef
11.
go back to reference Huang TC, Lin CC, Wu YC, Chia-Hsien Cheng J, Lee JM, Wang HP, et al. Phase II study of metabolic response to one-cycle chemotherapy in patients with locally advanced esophageal squamous cell carcinoma. J Formos Med Assoc. 2019;118:1024–30.PubMedCrossRef Huang TC, Lin CC, Wu YC, Chia-Hsien Cheng J, Lee JM, Wang HP, et al. Phase II study of metabolic response to one-cycle chemotherapy in patients with locally advanced esophageal squamous cell carcinoma. J Formos Med Assoc. 2019;118:1024–30.PubMedCrossRef
12.
go back to reference Kim SJ, Koo PJ, Chang S. Predictive value of repeated F-18 FDG PET/CT parameters changes during preoperative chemoradiotherapy to predict pathologic response and overall survival in locally advanced esophageal adenocarcinoma patients. Cancer Chemother Pharmacol. 2016;77:723–31.PubMedCrossRef Kim SJ, Koo PJ, Chang S. Predictive value of repeated F-18 FDG PET/CT parameters changes during preoperative chemoradiotherapy to predict pathologic response and overall survival in locally advanced esophageal adenocarcinoma patients. Cancer Chemother Pharmacol. 2016;77:723–31.PubMedCrossRef
13.
go back to reference Klaeser B, Nitzsche E, Schuller JC, Koberle D, Widmer L, Balmer-Majno S, et al. Limited predictive value of FDG-PET for response assessment in the preoperative treatment of esophageal cancer: results of a prospective multi-center trial (SAKK 75/02). Onkologie. 2009;32:724–30.PubMedCrossRef Klaeser B, Nitzsche E, Schuller JC, Koberle D, Widmer L, Balmer-Majno S, et al. Limited predictive value of FDG-PET for response assessment in the preoperative treatment of esophageal cancer: results of a prospective multi-center trial (SAKK 75/02). Onkologie. 2009;32:724–30.PubMedCrossRef
14.
go back to reference Ku GY, Bains MS, Park DJ, Janjigian YY, Rusch VW, Rizk NP, et al. Phase II study of bevacizumab and preoperative chemoradiation for esophageal adenocarcinoma. J Gastrointest Oncol. 2016;7:828–37.PubMedPubMedCentralCrossRef Ku GY, Bains MS, Park DJ, Janjigian YY, Rusch VW, Rizk NP, et al. Phase II study of bevacizumab and preoperative chemoradiation for esophageal adenocarcinoma. J Gastrointest Oncol. 2016;7:828–37.PubMedPubMedCentralCrossRef
15.
go back to reference Malik V, Lucey JA, Duffy GJ, Wilson L, McNamara L, Keogan M, et al. Early repeated 18F-FDG PET scans during neoadjuvant chemoradiation fail to predict histopathologic response or survival benefit in adenocarcinoma of the esophagus. J Nucl Med. 2010;51:1863–9.PubMedCrossRef Malik V, Lucey JA, Duffy GJ, Wilson L, McNamara L, Keogan M, et al. Early repeated 18F-FDG PET scans during neoadjuvant chemoradiation fail to predict histopathologic response or survival benefit in adenocarcinoma of the esophagus. J Nucl Med. 2010;51:1863–9.PubMedCrossRef
16.
go back to reference van Heijl M, Omloo JM, van Berge Henegouwen MI, Hoekstra OS, Boellaard R, Bossuyt PM, et al. Fluorodeoxyglucose positron emission tomography for evaluating early response during neoadjuvant chemoradiotherapy in patients with potentially curable esophageal cancer. Ann Surg. 2011;253:56–63.PubMedCrossRef van Heijl M, Omloo JM, van Berge Henegouwen MI, Hoekstra OS, Boellaard R, Bossuyt PM, et al. Fluorodeoxyglucose positron emission tomography for evaluating early response during neoadjuvant chemoradiotherapy in patients with potentially curable esophageal cancer. Ann Surg. 2011;253:56–63.PubMedCrossRef
17.
go back to reference Wieder HA, Brucher BL, Zimmermann F, Becker K, Lordick F, Beer A, et al. Time course of tumor metabolic activity during chemoradiotherapy of esophageal squamous cell carcinoma and response to treatment. J Clin Oncol. 2004;22:900–8.PubMedCrossRef Wieder HA, Brucher BL, Zimmermann F, Becker K, Lordick F, Beer A, et al. Time course of tumor metabolic activity during chemoradiotherapy of esophageal squamous cell carcinoma and response to treatment. J Clin Oncol. 2004;22:900–8.PubMedCrossRef
18.
go back to reference Yang Y, Yang Z, Han A, Feng R, Ma Y, Kong L, et al. Prediction of the outcome of definitive chemoradiation by decrease in F-18 FDG uptake in nonsurgical esophageal squamous cell cancer. Clin Nucl Med. 2011;36:860–6.PubMedCrossRef Yang Y, Yang Z, Han A, Feng R, Ma Y, Kong L, et al. Prediction of the outcome of definitive chemoradiation by decrease in F-18 FDG uptake in nonsurgical esophageal squamous cell cancer. Clin Nucl Med. 2011;36:860–6.PubMedCrossRef
19.
go back to reference Moher D, Liberati A, Tetzlaff J, Altman DG, Group P. Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. PLoS Med. 2009;6:e1000097.CrossRef Moher D, Liberati A, Tetzlaff J, Altman DG, Group P. Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. PLoS Med. 2009;6:e1000097.CrossRef
20.
go back to reference Whiting PF, Rutjes AW, Westwood ME, Mallett S, Deeks JJ, Reitsma JB, et al. QUADAS-2: a revised tool for the quality assessment of diagnostic accuracy studies. Ann Intern Med. 2011;155:529–36.PubMedCrossRef Whiting PF, Rutjes AW, Westwood ME, Mallett S, Deeks JJ, Reitsma JB, et al. QUADAS-2: a revised tool for the quality assessment of diagnostic accuracy studies. Ann Intern Med. 2011;155:529–36.PubMedCrossRef
21.
go back to reference Hayden JA, van der Windt DA, Cartwright JL, Cote P, Bombardier C. Assessing bias in studies of prognostic factors. Ann Intern Med. 2013;158:280–6.PubMedCrossRef Hayden JA, van der Windt DA, Cartwright JL, Cote P, Bombardier C. Assessing bias in studies of prognostic factors. Ann Intern Med. 2013;158:280–6.PubMedCrossRef
22.
go back to reference Lee J, Kim KW, Choi SH, Huh J, Park SH. systematic review and meta-analysis of studies evaluating diagnostic test accuracy: a practical review for clinical researchers-part II Statistical methods of meta-analysis. Korean J Radiol. 2015;16:1188–96.PubMedPubMedCentralCrossRef Lee J, Kim KW, Choi SH, Huh J, Park SH. systematic review and meta-analysis of studies evaluating diagnostic test accuracy: a practical review for clinical researchers-part II Statistical methods of meta-analysis. Korean J Radiol. 2015;16:1188–96.PubMedPubMedCentralCrossRef
23.
go back to reference Deeks JJ, Macaskill P, Irwig L. The performance of tests of publication bias and other sample size effects in systematic reviews of diagnostic test accuracy was assessed. J Clin Epidemiol. 2005;58:882–93.PubMedCrossRef Deeks JJ, Macaskill P, Irwig L. The performance of tests of publication bias and other sample size effects in systematic reviews of diagnostic test accuracy was assessed. J Clin Epidemiol. 2005;58:882–93.PubMedCrossRef
25.
go back to reference Guyot P, Ades AE, Ouwens MJ, Welton NJ. Enhanced secondary analysis of survival data: reconstructing the data from published Kaplan-Meier survival curves. BMC Med Res Methodol. 2012;12:9.PubMedPubMedCentralCrossRef Guyot P, Ades AE, Ouwens MJ, Welton NJ. Enhanced secondary analysis of survival data: reconstructing the data from published Kaplan-Meier survival curves. BMC Med Res Methodol. 2012;12:9.PubMedPubMedCentralCrossRef
27.
go back to reference Mandard AM, Dalibard F, Mandard JC, Marnay J, Henry-Amar M, Petiot JF, et al. Pathologic assessment of tumor regression after preoperative chemoradiotherapy of esophageal carcinoma. Clinicopathol Correl Cancer. 1994;73:2680–6. Mandard AM, Dalibard F, Mandard JC, Marnay J, Henry-Amar M, Petiot JF, et al. Pathologic assessment of tumor regression after preoperative chemoradiotherapy of esophageal carcinoma. Clinicopathol Correl Cancer. 1994;73:2680–6.
28.
go back to reference Kroese TE, Goense L, van Hillegersberg R, de Keizer B, Mook S, Ruurda JP, et al. Detection of distant interval metastases after neoadjuvant therapy for esophageal cancer with 18F-FDG PET(/CT): a systematic review and meta-analysis. Dis Esophagus. 2018;31:1–9. Kroese TE, Goense L, van Hillegersberg R, de Keizer B, Mook S, Ruurda JP, et al. Detection of distant interval metastases after neoadjuvant therapy for esophageal cancer with 18F-FDG PET(/CT): a systematic review and meta-analysis. Dis Esophagus. 2018;31:1–9.
29.
go back to reference Chen YM, Pan XF, Tong LJ, Shi YP, Chen T. Can 18F-fluorodeoxyglucose positron emission tomography predict responses to neoadjuvant therapy in oesophageal cancer patients? A meta-analysis. Nucl Med Commun. 2011;32:1005–10.PubMedCrossRef Chen YM, Pan XF, Tong LJ, Shi YP, Chen T. Can 18F-fluorodeoxyglucose positron emission tomography predict responses to neoadjuvant therapy in oesophageal cancer patients? A meta-analysis. Nucl Med Commun. 2011;32:1005–10.PubMedCrossRef
30.
go back to reference Cong L, Wang S, Gao T, Hu L. The predictive value of 18F-FDG PET for pathological response of primary tumor in patients with esophageal cancer during or after neoadjuvant chemoradiotherapy: a meta-analysis. Jpn J Clin Oncol. 2016;46:1118–26.PubMed Cong L, Wang S, Gao T, Hu L. The predictive value of 18F-FDG PET for pathological response of primary tumor in patients with esophageal cancer during or after neoadjuvant chemoradiotherapy: a meta-analysis. Jpn J Clin Oncol. 2016;46:1118–26.PubMed
31.
go back to reference Zhu W, Xing L, Yue J, Sun X, Sun X, Zhao H, et al. Prognostic significance of SUV on PET/CT in patients with localised oesophagogastric junction cancer receiving neoadjuvant chemotherapy/chemoradiation:a systematic review and meta-analysis. Br J Radiol. 2012;85:e694-701.PubMedPubMedCentralCrossRef Zhu W, Xing L, Yue J, Sun X, Sun X, Zhao H, et al. Prognostic significance of SUV on PET/CT in patients with localised oesophagogastric junction cancer receiving neoadjuvant chemotherapy/chemoradiation:a systematic review and meta-analysis. Br J Radiol. 2012;85:e694-701.PubMedPubMedCentralCrossRef
32.
go back to reference Xi M, Liao Z, Hofstetter WL, Komaki R, Ho L, Lin SH. (18)F-FDG PET response after induction chemotherapy can predict who will benefit from subsequent esophagectomy after chemoradiotherapy for esophageal adenocarcinoma. J Nucl Med. 2017;58:1756–63.PubMedPubMedCentralCrossRef Xi M, Liao Z, Hofstetter WL, Komaki R, Ho L, Lin SH. (18)F-FDG PET response after induction chemotherapy can predict who will benefit from subsequent esophagectomy after chemoradiotherapy for esophageal adenocarcinoma. J Nucl Med. 2017;58:1756–63.PubMedPubMedCentralCrossRef
33.
go back to reference Lerttanatum N, Tharavej C, Chongpison Y, Sanpavat A. Comparison of tumor regression grading system in locally advanced esophageal squamous cell carcinoma after preoperative radio-chemotherapy to determine the most accurate system predicting prognosis. J Gastrointest Oncol. 2019;10:276–82.PubMedPubMedCentralCrossRef Lerttanatum N, Tharavej C, Chongpison Y, Sanpavat A. Comparison of tumor regression grading system in locally advanced esophageal squamous cell carcinoma after preoperative radio-chemotherapy to determine the most accurate system predicting prognosis. J Gastrointest Oncol. 2019;10:276–82.PubMedPubMedCentralCrossRef
34.
go back to reference Brucher BL, Stein HJ, Zimmermann F, Werner M, Sarbia M, Busch R, et al. Responders benefit from neoadjuvant radiochemotherapy in esophageal squamous cell carcinoma: results of a prospective phase-II trial. Eur J Surg Oncol. 2004;30:963–71.PubMedCrossRef Brucher BL, Stein HJ, Zimmermann F, Werner M, Sarbia M, Busch R, et al. Responders benefit from neoadjuvant radiochemotherapy in esophageal squamous cell carcinoma: results of a prospective phase-II trial. Eur J Surg Oncol. 2004;30:963–71.PubMedCrossRef
35.
go back to reference Hermann RM, Horstmann O, Haller F, Perske C, Christiansen H, Hille A, et al. Histomorphological tumor regression grading of esophageal carcinoma after neoadjuvant radiochemotherapy: which score to use? Dis Esophagus. 2006;19:329–34.PubMedCrossRef Hermann RM, Horstmann O, Haller F, Perske C, Christiansen H, Hille A, et al. Histomorphological tumor regression grading of esophageal carcinoma after neoadjuvant radiochemotherapy: which score to use? Dis Esophagus. 2006;19:329–34.PubMedCrossRef
36.
go back to reference Ku GY, Kriplani A, Janjigian YY, Kelsen DP, Rusch VW, Bains M, et al. Change in chemotherapy during concurrent radiation followed by surgery after a suboptimal positron emission tomography response to induction chemotherapy improves outcomes for locally advanced esophageal adenocarcinoma. Cancer. 2016;122:2083–90.PubMedCrossRef Ku GY, Kriplani A, Janjigian YY, Kelsen DP, Rusch VW, Bains M, et al. Change in chemotherapy during concurrent radiation followed by surgery after a suboptimal positron emission tomography response to induction chemotherapy improves outcomes for locally advanced esophageal adenocarcinoma. Cancer. 2016;122:2083–90.PubMedCrossRef
37.
go back to reference Lordick F, Ott K, Krause BJ, Weber WA, Becker K, Stein HJ, et al. PET to assess early metabolic response and to guide treatment of adenocarcinoma of the oesophagogastric junction: the MUNICON phase II trial. Lancet Oncol. 2007;8:797–805.PubMedCrossRef Lordick F, Ott K, Krause BJ, Weber WA, Becker K, Stein HJ, et al. PET to assess early metabolic response and to guide treatment of adenocarcinoma of the oesophagogastric junction: the MUNICON phase II trial. Lancet Oncol. 2007;8:797–805.PubMedCrossRef
38.
go back to reference zum Buschenfelde CM, Herrmann K, Schuster T, Geinitz H, Langer R, Becker K, et al. (18)F-FDG PET-guided salvage neoadjuvant radiochemotherapy of adenocarcinoma of the esophagogastric junction: the MUNICON trial. J Nucl Med. 2011;52:1189–96.PubMedCrossRef zum Buschenfelde CM, Herrmann K, Schuster T, Geinitz H, Langer R, Becker K, et al. (18)F-FDG PET-guided salvage neoadjuvant radiochemotherapy of adenocarcinoma of the esophagogastric junction: the MUNICON trial. J Nucl Med. 2011;52:1189–96.PubMedCrossRef
39.
40.
go back to reference Swisher SG, Erasmus J, Maish M, Correa AM, Macapinlac H, Ajani JA, et al. 2-Fluoro-2-deoxy-d-glucose positron emission tomography imaging is predictive of pathologic response and survival after preoperative chemoradiation in patients with esophageal carcinoma. Cancer. 2004;101:1776–85.PubMedCrossRef Swisher SG, Erasmus J, Maish M, Correa AM, Macapinlac H, Ajani JA, et al. 2-Fluoro-2-deoxy-d-glucose positron emission tomography imaging is predictive of pathologic response and survival after preoperative chemoradiation in patients with esophageal carcinoma. Cancer. 2004;101:1776–85.PubMedCrossRef
41.
go back to reference Erasmus JJ, Munden RF, Truong MT, Ho JJ, Hofstetter WL, Macapinlac HA, et al. Preoperative chemo-radiation-induced ulceration in patients with esophageal cancer: a confounding factor in tumor response assessment in integrated computed tomographic-positron emission tomographic imaging. J Thorac Oncol. 2006;1:478–86.PubMedCrossRef Erasmus JJ, Munden RF, Truong MT, Ho JJ, Hofstetter WL, Macapinlac HA, et al. Preoperative chemo-radiation-induced ulceration in patients with esophageal cancer: a confounding factor in tumor response assessment in integrated computed tomographic-positron emission tomographic imaging. J Thorac Oncol. 2006;1:478–86.PubMedCrossRef
Metadata
Title
Prognostic and predictive values of interim 18F-FDG PET during neoadjuvant chemoradiotherapy for esophageal cancer: a systematic review and meta-analysis
Authors
Sangwon Han
Yong-il Kim
Sungmin Woo
Tae-Hyung Kim
Jin-Sook Ryu
Publication date
01-04-2021
Publisher
Springer Singapore
Published in
Annals of Nuclear Medicine / Issue 4/2021
Print ISSN: 0914-7187
Electronic ISSN: 1864-6433
DOI
https://doi.org/10.1007/s12149-021-01583-x

Other articles of this Issue 4/2021

Annals of Nuclear Medicine 4/2021 Go to the issue