1
|
Impact of CT-assessed changes in tumor size after neoadjuvant chemotherapy on pathological response and survival of patients with esophageal squamous cell carcinoma. Langenbecks Arch Surg 2022; 407:965-974. [PMID: 34989856 DOI: 10.1007/s00423-022-02430-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 01/01/2022] [Indexed: 12/09/2022]
Abstract
PURPOSE Neoadjuvant chemotherapy (NAC) followed by surgery is the standard treatment for advanced esophageal squamous cell carcinoma (ESCC) in Japan. Computed tomography (CT) is usually used to assess the therapeutic effect of NAC; however, there are no reliable criteria for predicting pathological response or patient prognosis. METHODS We included 84 patients who underwent esophagectomy between January 2009 and December 2018 and retrospectively reviewed their CT scans performed before and after NAC. The reduction rate of the largest tumor area (TA), long diameter (LD), and short diameter (SD) were measured on a transverse CT image. The pathological response and cutoff values were calculated using the receiver operating characteristic curve, and the most suitable ones for determining the effect were examined. RESULTS The areas under the curve for predicting responders to NAC based on the reduction rate of the TA, LD, and SD were 0.755, 0.761, and 0.781, respectively. The optimal cutoff value of the SD reduction rate for predicting responders to NAC was 22%. An SD reduction ≥ 22% was an independent prognostic factor for overall survival in univariate (p = 0.005, hazard ratio [HR] = 2.755) and multivariate analyses (p = 0.030 HR 2.690). Furthermore, an SD reduction of ≥ 22% was also an independent prognostic factor for relapse-free survival in the univariate (p = 0.007, HR = 2.491) and multivariate analyses (p = 0.007, HR = 0.030). CONCLUSIONS The reduction rate of the tumor SD is a simple predictor of pathological response and patient prognosis.
Collapse
|
2
|
Does a high Mandard score really define a poor response to chemotherapy in oesophageal adenocarcinoma? Br J Cancer 2021; 124:1653-1660. [PMID: 33742143 PMCID: PMC8110771 DOI: 10.1038/s41416-021-01290-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 12/16/2020] [Accepted: 01/29/2021] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND A high Mandard score implies a non-response to chemotherapy in oesophageal adenocarcinoma. However, some patients exhibit tumour volume reduction and a nodal response despite a high score. This study examines survival and recurrence patterns in these patients. METHODS Clinicopathological factors were analysed using multivariable Cox regression assessing time to death and recurrence. Computed tomography-estimated tumour volume change was examined in a subgroup of consecutive patients. RESULTS Five hundred and fifty-five patients were included. Median survival was 55 months (Mandard 1-3) and 21 months (Mandard 4 and 5). In the Mandard 4 and 5 group (332 patients), comparison between complete nodal responders and persistent nodal disease showed improved survival (90 vs 18 months), recurrence rates (locoregional 14.75 vs 28.74%, systemic 24.59 vs 48.42%) and circumferential resection margin positivity (22.95 vs 68.11%). Complete nodal response independently predicted improved survival (hazard ratio 0.34 (0.16-0.74). Post-chemotherapy tumour volume reduction was greater in patients with a complete nodal response (-16.3 vs -7.7 cm3, p = 0.033) with no significant difference between Mandard groups. CONCLUSION Patients with a complete nodal response to chemotherapy have significantly improved outcomes despite a poor Mandard score. High Mandard score does not correspond with a non-response to chemotherapy in all cases and patients with nodal downstaging may still benefit from adjuvant chemotherapy.
Collapse
|
3
|
Djuric-Stefanovic A, Jankovic A, Saponjski D, Micev M, Stojanovic-Rundic S, Cosic-Micev M, Pesko P. Analyzing the post-contrast attenuation of the esophageal wall on routine contrast-enhanced MDCT examination can improve the diagnostic accuracy in response evaluation of the squamous cell esophageal carcinoma to neoadjuvant chemoradiotherapy in comparison with the esophageal wall thickness. Abdom Radiol (NY) 2019; 44:1722-1733. [PMID: 30758534 DOI: 10.1007/s00261-019-01911-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE To evaluate the accuracy of the multidetector computed tomography (MDCT) in the response evaluation of the esophageal squamous cell carcinoma (ESCC) to neoadjuvant chemoradiotherapy (nCRT) by analyzing the thickness and post-contrast attenuation of the esophageal wall after the nCRT. METHODS Contrast-enhanced (CE)-MDCT examinations in portal venous phase of one hundred patients with locally advanced ESCC who received nCRT and underwent esophageal resection and histopathology assessment of tumor regression grade (TRG) were retrospectively analyzed by measuring the maximal thickness and mean density of the esophageal wall in the segment involved by tumor and visually searching for hyperdense foci within it. Diagnostic performance was evaluated using the ROC analysis. RESULTS Average attenuation of the esophageal wall had stronger diagnostic performance for predicting pathologic complete regression (pCR) (AUC = 0.994; p < 0.001) in relation to maximal esophageal wall thickness (AUC = 0.731; p < 0.001). Maximal esophageal wall thickness ≤ 9 mm and average attenuation of the esophageal wall ≤ 64 HU predicted pCR with the sensitivity, specificity, and overall accuracy of 62.5%, 77.9%, and 73%, and 96.9%, 98.5%, and 98%, respectively. Combination of both cutoff values enabled correct assessment of pCR with the 100% accuracy. Visual detection of the hyperdense focus within the esophageal wall predicted pCR with the sensitivity, specificity, and overall accuracy values of 100%, 94.1%, and 96%, respectively. CONCLUSION Visual analysis and measurement of post-contrast attenuation of the esophageal wall after the nCRT can improve diagnostic accuracy of MDCT in the response evaluation of the ESCC to nCRT in comparison with measuring the esophageal wall thickness.
Collapse
|
4
|
Zhang YH, Fischer MA, Lehmann H, Johnsson Å, Rouvelas I, Herlin G, Lundell L, Brismar TB. Computed tomography volumetry of esophageal cancer - the role of semiautomatic assessment. BMC Med Imaging 2019; 19:17. [PMID: 30767773 PMCID: PMC6377716 DOI: 10.1186/s12880-019-0317-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 01/28/2019] [Indexed: 01/16/2023] Open
Abstract
Background The clinical and research value of Computed Tomography (CT) volumetry of esophageal cancer tumor size remains controversial. Development in CT technique and image analysis has made CT volumetry less cumbersome and it has gained renewed attention. The aim of this study was to assess esophageal tumor volume by semi-automatic measurements as compared to manual. Methods A total of 23 esophageal cancer patients (median age 65, range 51–71), undergoing CT in the portal-venous phase for tumor staging, were retrospectively included between 2007 and 2012. One radiology resident and one consultant radiologist measured the tumor volume by semiautomatic segmentation and manual segmentation. Reproducibility of the respective measurements was assessed by intraclass correlation coefficients (ICC) and by average deviation from mean. Results Mean tumor volume was 46 ml (range 5-137 ml) using manual segmentation and 42 ml (range 3-111 ml) using semiautomatic segmentation. Semiautomatic measurement provided better inter-observer agreement than traditional manual segmentation. The ICC was significantly higher for semiautomatic segmentation in comparison to manual segmentation (0.86, 0.56, p < 0.01). The average absolute percentage difference from mean was reduced from 24 to 14% (p < 0.001) when using semiautomatic segmentation. Conclusions Semiautomatic analysis outperforms manual analysis for assessment of esophageal tumor volume, improving reproducibility.
Collapse
Affiliation(s)
- Yi-Hua Zhang
- Department of Diagnostic Radiology and Karolinska Institutet, Karolinska University Hospital, CLINTEC, Stockholm, Sweden. .,Division of Medical Imaging and Technology, Department of Clinical Science, Intervention and Technology, Karolinska University Hospital, Huddinge, 141 86, Stockholm, Sweden.
| | - Michael A Fischer
- Department of Diagnostic Radiology and Karolinska Institutet, Karolinska University Hospital, CLINTEC, Stockholm, Sweden
| | - Henrik Lehmann
- Department of Diagnostic Radiology and Karolinska Institutet, Karolinska University Hospital, CLINTEC, Stockholm, Sweden
| | - Åse Johnsson
- Department of Radiology, Institute of Clinical Sciences, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden.,Department of Radiology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Ioannis Rouvelas
- Department of Surgery, Centre for Digestive Diseases and Karolinska Institutet, Karolinska University Hospital, CLINTEC, Stockholm, Sweden
| | - Gunnar Herlin
- Department of Diagnostic Radiology and Karolinska Institutet, Karolinska University Hospital, CLINTEC, Stockholm, Sweden
| | - Lars Lundell
- Department of Surgery, Centre for Digestive Diseases and Karolinska Institutet, Karolinska University Hospital, CLINTEC, Stockholm, Sweden
| | - Torkel B Brismar
- Department of Diagnostic Radiology and Karolinska Institutet, Karolinska University Hospital, CLINTEC, Stockholm, Sweden
| |
Collapse
|
5
|
Riyahi S, Choi W, Liu CJ, Zhong H, Wu AJ, Mechalakos JG, Lu W. Quantifying local tumor morphological changes with Jacobian map for prediction of pathologic tumor response to chemo-radiotherapy in locally advanced esophageal cancer. Phys Med Biol 2018; 63:145020. [PMID: 29911659 PMCID: PMC6064042 DOI: 10.1088/1361-6560/aacd22] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We proposed a framework to detect and quantify local tumor morphological changes due to chemo-radiotherapy (CRT) using a Jacobian map and to extract quantitative radiomic features from the Jacobian map to predict the pathologic tumor response in locally advanced esophageal cancer patients. In 20 patients who underwent CRT, a multi-resolution BSpline deformable registration was performed to register the follow-up (post-CRT) CT to the baseline CT image. The Jacobian map (J) was computed as the determinant of the gradient of the deformation vector field. The Jacobian map measured the ratio of local tumor volume change where J < 1 indicated tumor shrinkage and J > 1 denoted expansion. The tumor was manually delineated and corresponding anatomical landmarks were generated on the baseline and follow-up images. Intensity, texture and geometry features were then extracted from the Jacobian map of the tumor to quantify tumor morphological changes. The importance of each Jacobian feature in predicting pathologic tumor response was evaluated by both univariate and multivariate analysis. We constructed a multivariate prediction model by using a support vector machine (SVM) classifier coupled with a least absolute shrinkage and selection operator (LASSO) for feature selection. The SVM-LASSO model was evaluated using ten-times repeated 10-fold cross-validation (10 × 10-fold CV). After registration, the average target registration error was 4.30 ± 1.09 mm (LR:1.63 mm AP:1.59 mm SI:3.05 mm) indicating registration error was within two voxels and close to 4 mm slice thickness. Visually, the Jacobian map showed smoothly-varying local shrinkage and expansion regions in a tumor. Quantitatively, the average median Jacobian was 0.80 ± 0.10 and 1.05 ± 0.15 for responder and non-responder tumors, respectively. These indicated that on average responder tumors had 20% median volume shrinkage while non-responder tumors had 5% median volume expansion. In univariate analysis, the minimum Jacobian (p = 0.009, AUC = 0.98) and median Jacobian (p = 0.004, AUC = 0.95) were the most significant predictors. The SVM-LASSO model achieved the highest accuracy when these two features were selected (sensitivity = 94.4%, specificity = 91.8%, AUC = 0.94). Novel features extracted from the Jacobian map quantified local tumor morphological changes using only baseline tumor contour without post-treatment tumor segmentation. The SVM-LASSO model using the median Jacobian and minimum Jacobian achieved high accuracy in predicting pathologic tumor response. The Jacobian map showed great potential for longitudinal evaluation of tumor response.
Collapse
Affiliation(s)
- Sadegh Riyahi
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Wookjin Choi
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Chia-Ju Liu
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Hualiang Zhong
- Department of Radiation Oncology, Henry Ford Hospital, Detroit, MI 48202, USA
| | - Abraham J. Wu
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - James G. Mechalakos
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Wei Lu
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| |
Collapse
|
6
|
Usefulness of computed tomography density of a tumor in predicting the response of advanced esophageal cancer to preoperative chemotherapy. Surgery 2017; 162:823-835. [DOI: 10.1016/j.surg.2017.06.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 05/07/2017] [Accepted: 06/02/2017] [Indexed: 11/23/2022]
|
7
|
Yip C, Cook GJR, Landau DB, Davies A, Goh V. Performance of different imaging modalities in assessment of response to neoadjuvant therapy in primary esophageal cancer. Dis Esophagus 2015; 29:116-30. [PMID: 25604614 DOI: 10.1111/dote.12315] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- C Yip
- Division of Imaging Sciences and Biomedical Engineering, King's College London, London, UK.,Department of Radiation Oncology, National Cancer Center, Singapore
| | - G J R Cook
- Division of Imaging Sciences and Biomedical Engineering, King's College London, London, UK
| | - D B Landau
- Division of Imaging Sciences and Biomedical Engineering, King's College London, London, UK.,Department of Clinical Oncology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - A Davies
- Department of General Surgery, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - V Goh
- Division of Imaging Sciences and Biomedical Engineering, King's College London, London, UK.,Department of Radiology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| |
Collapse
|
8
|
Oesophageal cancer: assessment of tumour response to chemoradiotherapy with tridimensional CT. Radiol Med 2014; 120:430-9. [PMID: 25354813 DOI: 10.1007/s11547-014-0466-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 05/30/2014] [Indexed: 10/24/2022]
Abstract
PURPOSE To investigate whether changes in tumour volume were predictive of histopathological response to neoadjuvant therapy for oesophageal cancer. MATERIALS AND METHODS Thirty-five consecutive patients with locally advanced oesophageal cancer were treated with chemoradiotherapy and surgery in responders from July 2007 to July 2009. Tumour volume (TV) was calculated using innovative tumour volume estimation software which analysed computed tomography (CT) data. Tumour diameter and area were also evaluated. Variations in tumour measurements following neoadjuvant treatment were compared with the histopathological data. RESULTS Median baseline tumour diameter, area and volume were 3.51 cm (range 1.67-6.61), 7.51 cm(2) (range 1.79-21.0) and 33.80 cm(3) (range 3.36-101.6), respectively. Differences in TV between the pre- and post-treatment values were significantly correlated with the pathological stage (τ = 0.357, p = 0.004) and the tumour regression grade index (τ = 0.368, p = 0.005). According to the receiver operating characteristic analysis, TV measurements following treatment had moderate predictive values for the pathological T stage (area under the curve, AUC = 0.742, sensitivity = 55.56 %, specificity = 92.86 %, p = 0.005).Comparison of pathological and radiological volume showed a good precision (Pearson rho 0.77). CONCLUSIONS Changes in TV calculated on CT scans have a limited role in predicting pathological response to neoadjuvant treatment in oesophageal cancer patients. New imaging techniques based on metabolic imaging may provide better results.
Collapse
|
9
|
Konieczny A, Meyer P, Schnider A, Komminoth P, Schmid M, Lombriser N, Weishaupt D. Accuracy of multidetector-row CT for restaging after neoadjuvant treatment in patients with oesophageal cancer. Eur Radiol 2013; 23:2492-502. [PMID: 23645329 DOI: 10.1007/s00330-013-2844-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Revised: 02/18/2013] [Accepted: 02/21/2013] [Indexed: 12/22/2022]
Abstract
OBJECTIVES To assess the diagnostic accuracy of 64-multidetector CT (MDCT) for restaging of patients with oesophageal cancer undergoing neoadjuvant therapy. METHODS Results of pathological staging were correlated with those from 64-MDCT before and after neoadjuvant treatment in 35 patients using the American Joint Committee on Cancer/TNM classification (7th edition). CT response was determined using the Response Evaluation Criteria in Solid Tumours (RECIST) method, modified for one-dimensional tumour diameter measurement. RESULTS 64-MDCT predicted T stage correctly in 34 % (12/35), overstaged in 49 % (17/35) and understaged in 17 % (6/35). Sensitivity/specificity values were as follows: T0, 20 %/92 %; T1-T2, 31 %/59 %; T3, 60 %/64 %; T4, 100 %/4 %. Negative predictive values for T3/T4 were 80 %/100 %. MDCT accurately predicted complete histopathological response in 20 % (accuracy 74 %) and overstaged in 80 %. Tumour regression grade was predicted correctly in only 8 % (2/25) and underestimated in 68 % (17/25). Accurate N stage was noted in 69 % (24/35). CONCLUSION Although MDCT tends to be able to exclude advanced tumour stages (T3, T4) with a higher likelihood, the diagnostic accuracy of high resolution MDCT for restaging oesophageal cancer and assessing the response to neoadjuvant therapy has not improved in comparison to older-generation CT. Therefore, the future assessment of oesophageal tumour response should focus on combined morphologic and metabolic imaging. KEY POINTS • Multidetector CT (MDCT) has been beneficial for the evaluation of many tumours. • However diagnostic accuracy for restaging oesophageal cancer has not improved with MDCT. • MDCT tends to be able to exclude advanced tumour stages (T3/T4). • MDCT has a low accuracy for determining lymph node metastasis. • Oesophageal tumour response should be assessed by combined morphological and metabolic imaging.
Collapse
Affiliation(s)
- Agnieszka Konieczny
- Institute of Radiology, Triemli Hospital, Birmensdorferstrasse 497, CH-8063, Zürich, Switzerland
| | | | | | | | | | | | | |
Collapse
|
10
|
van Heijl M, Phoa S, van Berge Henegouwen M, Omloo J, Mearadji B, Sloof G, Bossuyt P, Hulshof M, Richel D, Bergman J, ten Kate F, Stoker J, van Lanschot J. Accuracy and reproducibility of 3D-CT measurements for early response assessment of chemoradiotherapy in patients with oesophageal cancer. Eur J Surg Oncol 2011; 37:1064-71. [DOI: 10.1016/j.ejso.2011.09.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2010] [Revised: 03/24/2011] [Accepted: 09/05/2011] [Indexed: 12/30/2022] Open
|
11
|
Sendler A. Metabolic response evaluation by PET during neoadjuvant treatment for adenocarcinoma of the esophagus and esophagogastric junction. Recent Results Cancer Res 2010; 182:167-77. [PMID: 20676880 DOI: 10.1007/978-3-540-70579-6_14] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Following several randomized trials, neoadjuvant therapy in adenocarcinoma of esophagus and the esophagogastric junction can be seen as an international standard. However, in a large proportion of patients the objective response achieved is unsatisfactory. These patients do not benefit from neoadjuvant therapy, but do suffer from toxic side effects; sometimes progressive and appropriate surgical therapy is delayed. For this reason, a diagnostic test that can accurately assess tumor response to neoadjuvant therapy might be of crucial importance. Response evaluation using CT scan, endoluminal ultrasound, or rebiopsy is not reliable. In recent times, response evaluation using 18FGD PET after and during neoadjuvant treatment is in the focus of clinical and scientific interest. Most studies have evaluated the diagnostic modalities for response to neoadjuvant treatment after completion of the treatment. Following the published data so far, FDG-PET seems to be less accurate after and during chemoradiation than after chemotherapy alone. The data of early response evaluation (14 days after the onset of chemotherapy) are very much encouraging; however, they have to be evaluated in an international randomized trial. Standardization of PET technology as well as defining the thresholds used for the estimation of early response is mandatory. So far, FDG-PET does not change treatment in esophageal and gastric cancer.
Collapse
Affiliation(s)
- A Sendler
- Allgemein-, Viszeral- und Tumorchirurgie, Isar Medizin Zentrum, Sonnenstr. 24 - 26, 80331, München, Germany.
| |
Collapse
|
12
|
Suttie S, McAteer D, Sheehan M, Nicolson M, Schweiger L, Hammonds S, Smith T, Welch A, Park K. F-18-FDG and C-11-Choline Positron Emission Tomography in Human Esophago-Gastric Cancer: Prediction of Response to Therapy. World J Oncol 2010; 1:66-67. [PMID: 29147183 PMCID: PMC5649907 DOI: 10.4021/wjon2010.04.201w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/13/2010] [Indexed: 11/03/2022] Open
Abstract
Background To determine the utility of F-18-FDG and C-11-Choline uptake, in patients with esophageal and esophago-gastric junction tumors who are to undergo either neo-adjuvant or palliative chemotherapy, in predicting response (pathological and survival). Methods Eighteen patients with biopsy proven cancer were recruited prospectively. Patients underwent PET imaging before and during the first cycle of chemotherapy (seven and 14 days) with both F-18-FDG and C-11-Choline. Tracer uptake was quantified using Standardized Uptake Values. Pathological tumor response was determined using the Mandard criteria. Cellular proliferation was determined using ki-67 immunohistochemistry. Relationships between tracer uptake and response, one-year survival and cellular proliferation were determined. Results All 18 tumors were imaged by F-18-FDG PET compared to 16/18 with C-11-Choline. Change in uptake of either tracer did not correlate with pathological response. Pathological response did not influence survival (median-survival, responders = 16.1 months; non-responders = 19.0 months, p = 0.978). There was no significant correlation of change in tracer uptake with survival. C-11-Choline tumor uptake did not correlate with cellular proliferation. Conclusion F-18-FDG PET is superior for imaging of the primary tumor. Neither F-18-FDG nor C-11-Choline PET was able to predict response accurately.
Collapse
Affiliation(s)
- Stuart Suttie
- Department of Surgery, Aberdeen Royal Infirmary, Foresterhill, Aberdeen, UK, AB25 2ZN
| | - Dympna McAteer
- Department of Radiology, Aberdeen Royal Infirmary, Foresterhill, Aberdeen, UK, AB25 2ZN
| | - Margaret Sheehan
- Department of Pathology, Aberdeen Royal Infirmary, Foresterhill, Aberdeen, UK, AB25 2ZN
| | - Marianne Nicolson
- Department of Oncology, Aberdeen Royal Infirmary, Foresterhill, Aberdeen, UK, AB25 2ZN
| | - Lutz Schweiger
- Department of Biomedical Physics, Aberdeen University, Aberdeen Royal Infirmary, Foresterhill, Aberdeen, UK, AB25 2ZN
| | - Solveig Hammonds
- Department of Biomedical Physics, Aberdeen University, Aberdeen Royal Infirmary, Foresterhill, Aberdeen, UK, AB25 2ZN
| | - Timothy Smith
- Department of Biomedical Physics, Aberdeen University, Aberdeen Royal Infirmary, Foresterhill, Aberdeen, UK, AB25 2ZN
| | - Andrew Welch
- Department of Biomedical Physics, Aberdeen University, Aberdeen Royal Infirmary, Foresterhill, Aberdeen, UK, AB25 2ZN
| | - Kenneth Park
- Department of Surgery, Aberdeen Royal Infirmary, Foresterhill, Aberdeen, UK, AB25 2ZN
| |
Collapse
|
13
|
|
14
|
Abstract
Esophageal cancer is the third most common malignancy of the alimentary tract. The incidence of esophageal cancer has steadily increased over the past three decades. Almost all therapeutic modalities for esophageal cancer are associated with a considerable mortality and morbidity. Consequently, there has been growing concern regarding effective management of esophageal cancer. 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET) is playing an increasing role in the management of esophageal cancer, offering potential advantages in the accuracy of disease assessment at a number of decision points in the management pathway. This review evaluates the critical role of FDG-PET in (i) diagnosis, (ii) preoperative staging, (iii) monitoring of response to neoadjuvant therapy, (iv) assessment of recurrence and (v) prediction of prognosis of esophageal cancer. We have also compared diagnostic performance of FDG-PET and other current technologies such as computed tomography scan and endoscopic ultrasonography based on available evidence.
Collapse
|
15
|
Stomach cancer: prevalence and significance of neck nodal metastases on sonography. Eur Radiol 2009; 19:1968-72. [PMID: 19259677 DOI: 10.1007/s00330-009-1372-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2008] [Accepted: 02/05/2009] [Indexed: 10/21/2022]
Abstract
The aim of this study was to determine the frequency of metastatic neck nodes detected using sonography in patients with stomach cancer at presentation according to primary subsite and to assess the effect of metastatic neck node detection on tumour staging. Imaging and histological records of 233 patients diagnosed with stomach cancer were reviewed. All patients underwent neck ultrasound at presentation with ultrasound-guided fine needle aspiration for cytology (FNAC) of sonographically abnormal neck nodes. Abnormal nodes were classified positive or negative for metastases based on the FNAC result. Clinical records were also reviewed for evidence of subsequent neck nodal metastases. Sonographically abnormal neck nodes were present in 14/233 (6.0%) patients; 7 were reactive and 7 were metastatic based on FNAC findings and clinical follow-up. Overall, 7/233 (3.0%) patients with stomach cancer had nodal metastases, although tumour stage was altered in only 2/233 (0.9%) patients; 57% of metastatic nodes were impalpable. Nodal metastases from gastric cardia tumours (6%) were more common than from the body (2%) or antrum (3%). Neck node metastases are uncommon in stomach cancer at presentation, are usually associated with extensive intra-abdominal metastatic spread, and adversely influence tumour staging in only a small minority of patients.
Collapse
|
16
|
Suttie SA, Welch AE, Park KGM. Positron emission tomography for monitoring response to neoadjuvant therapy in patients with oesophageal and gastro-oesophageal junction carcinoma. Eur J Surg Oncol 2009; 35:1019-29. [PMID: 19232881 DOI: 10.1016/j.ejso.2009.01.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2008] [Revised: 12/17/2008] [Accepted: 01/28/2009] [Indexed: 11/29/2022] Open
Abstract
AIMS The aim of this review is to consolidate our knowledge on an important and rapidly expanding area of expertise. Numerous methods for predicting response (in terms of pathological response and survival) to neoadjuvant therapy (chemotherapy/chemo-radiotherapy) in oesophageal and junctional cancers have been proposed. This review concerns itself only with the use of positron emission tomography for such a purpose. At present there are no standardised criteria amongst PET trials as to what determines a response according to PET, what is the optimal time to perform PET in relation to the timing of neoadjuvant therapy, and what is the ideal method of quantifying PET tracer uptake. METHODS An electronic search was performed of PubMed, Ovid and Embase websites to identify studies, in the English language, using the search terms: PET; oesophageal; oesophago-gastric; survival; cancer; response; chemotherapy and chemo-radiotherapy. The reference lists were searched manually to identify further relevant studies. RESULTS Twenty-two studies were identified, all using (18)FDG as the tracer, using PET to predict response in terms of pathological response and survival following neoadjuvant therapy (chemotherapy/chemo-radiotherapy). PET had a varying degree of success in predicting both pathological response and survival outcomes, with only one study using PET to influence management decisions. CONCLUSIONS PET seems a promising technique, but large-scale conclusions are hindered by small study numbers, lack of criteria as to what constitutes a response and markedly differing PET imaging times. A large randomised trial concerning a homogeneous group of patients and tumours is required before PET might be used to influence management.
Collapse
Affiliation(s)
- S A Suttie
- Department of Surgery and Molecular Oncology, University of Dundee, Ninewells Hospital and Medical School, DD1 9SY, UK.
| | | | | |
Collapse
|
17
|
Brücher BLDM, Swisher SG, Königsrainer A, Zieker D, Hartmann J, Stein H, Kitagawa Y, Law S, Ajani JA. Response to Preoperative Therapy in Upper Gastrointestinal Cancers. Ann Surg Oncol 2009; 16:878-86. [DOI: 10.1245/s10434-009-0315-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2007] [Revised: 11/06/2008] [Accepted: 11/29/2008] [Indexed: 12/13/2022]
|
18
|
Nakahara T, Togawa T, Nagata M, Kikuchi K, Hatano K, Yui N, Kubo A. Comparison of barium swallow, CT and thallium-201 SPECT in evaluating responses of patients with esophageal squamous cell carcinoma to preoperative chemoradiotherapy. Ann Nucl Med 2008; 17:583-91. [PMID: 14651358 DOI: 10.1007/bf03006672] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The aims of this study were to compare the results of thallium-201 (Tl-201) SPECT, barium swallow and CT in the assessment of the effect of preoperative chemoradiotherapy. This study consisted of 28 patients with advanced esophageal squamous cell carcinoma (AESCC) who underwent the three imaging modalities before and after preoperative chemoradiotherapy. The results were quantified using the bidimensional method for barium swallow and contrast-enhanced CT and the tumor-to-lung ratio for SPECT. The percent decrease in these quantitative values after therapy was defined as %Dba, %Dct and %Dtl respectively. The histological effect of the chemoradiotherapy was determined from the resected surgical specimen of the esophagus: grade 0, 100% viable tumor cells; grade 1a, 99-67%; grade 1b, 66-34%; grade 2, 33-1%; grade 3, no viable cells. A statistically significant difference of %Dtl between the subgroups of each grade was evident (p = 0.0433), whereas no significant differences were evident for %Dba (p = 0.1778) or %Dct (p = 0.7377). However, the overlap of %Dtl between these groups was marked. Although thallium-201 SPECT cannot be used to evaluate the therapeutic effect with acceptable accuracy, SPECT may be of additional value to barium swallow and CT in assessing the response of AESCC to preoperative chemoradiotherapy.
Collapse
Affiliation(s)
- Tadaki Nakahara
- Division of Nuclear Medicine, Chiba Cancer Center Hospital, Japan.
| | | | | | | | | | | | | |
Collapse
|
19
|
Higuchi I, Yasuda T, Yano M, Doki Y, Miyata H, Tatsumi M, Fukunaga H, Takiguchi S, Fujiwara Y, Hatazawa J, Monden M. Lack of fludeoxyglucose F 18 uptake in posttreatment positron emission tomography as a significant predictor of survival after subsequent surgery in multimodality treatment for patients with locally advanced esophageal squamous cell carcinoma. J Thorac Cardiovasc Surg 2008; 136:205-12, 212.e1-3. [PMID: 18603077 DOI: 10.1016/j.jtcvs.2008.02.016] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2007] [Revised: 01/25/2008] [Accepted: 02/15/2008] [Indexed: 01/24/2023]
Abstract
OBJECTIVE Patients with advanced esophageal squamous cell carcinoma receive neoadjuvant chemotherapy or chemoradiotherapy to improve survival, but benefits are observed only in those with histologic response. Positron emission tomography with fludeoxyglucose F 18 (INN fludeoxyglucose [(18)F]) detects accumulation of glucose analog in viable cancer cells. This study investigated the usefulness of positron emission tomography with fludeoxyglucose F 18 in assessment of response of advanced esophageal squamous cell carcinoma to neoadjuvant treatment to establish new criteria to predict postoperative long-term survival. METHODS Fifty patients with locally advanced esophageal squamous cell carcinoma who received neoadjuvant therapy (chemotherapy 35, chemoradiotherapy 15) underwent positron emission tomography with fludeoxyglucose F 18 before surgical resection in evaluation of posttreatment maximum standardized uptake value, residual tumor size (maximum square area of longitudinal axis), histologic response, and postoperative survival. RESULTS After treatment, uptake was not noted in 21 patients (posttreatment maximum standardized uptake value < 2.5, negative) but was detected in 29 (> or = 2.5, positive). Residual tumor size ranged from 0 to 54.0 mm(2) for negative results and 55.0 to 676.0 mm(2) for positive, clearly distinguishing histologic major response from nonresponse. The negative group demonstrated significantly higher 5-year cause-specific survival (67.7%) and lower hematogenous recurrence (4.8%) than the 36.5% and 37.0% values in the positive group, (P < .0042 and P = .0083, respectively). Univariate Cox regression analyses identified posttreatment maximum standardized uptake value (cutoff 2.5) as the only preoperative prognostic factor (P = .0071). CONCLUSION Posttreatment positron emission tomography with fludeoxyglucose F 18 reliably predicted histologic response and postoperative survival in advanced esophageal squamous cell carcinoma. This tool could potentially be used to tailor optimal treatment according to individual responses.
Collapse
Affiliation(s)
- Ichirou Higuchi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Wong SKH, Chiu PWY, Leung SF, Cheung KY, Chan ACW, Au-Yeung ACM, Griffith JF, Chung SSC, Ng EKW. Concurrent chemoradiotherapy or endoscopic stenting for advanced squamous cell carcinoma of esophagus: a case-control study. Ann Surg Oncol 2007; 15:576-82. [PMID: 18057993 DOI: 10.1245/s10434-007-9679-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2007] [Revised: 09/12/2007] [Accepted: 09/12/2007] [Indexed: 12/17/2022]
Abstract
BACKGROUND We evaluated the role of chemoradiotherapy (CRT) for patients with inoperable squamous esophageal cancer. METHODS Patients with locally advanced or metastatic squamous esophageal carcinoma who received CRT were recruited. The CRT consists of continuous infusion of 5-fluorouracil at 200 mg/m(2)/day, and cisplatin at 60 mg/m(2) on days 1 and 22, with concurrent radiotherapy for a total of 50 to 60 Gy in 25 to 30 fractions over 6 weeks. Efficacy was assessed by endoscopy and computed tomographic scan before and 8 weeks after completion of the treatment program. Median survival and the need for palliative esophageal stenting were compared with another group of patients who received endoscopic stenting. RESULTS From 1996 to 2003, a total of 36 consecutive patients (33 male, mean +/- SD age 63.2 +/- 9.5 years) with T4 disease (81%) with or without cervical nodal metastasis (50%) received CRT, while 36 patients treated with endoscopic stenting alone were recruited as controls. Both groups were comparable in demographics, pretreatment dysphagia score, comorbidities, and tumor characteristics. CRT was completed in 32 patients (89%). There was no treatment-related mortality. Tumor volume was greatly reduced after CRT in 19 patients. Four patients (11%) received salvage esophagectomy 9 to 42 months after CRT. Compared with the stenting group, CRT statistically significantly improved 5-year survival (15% vs. 0%, P = .01), median survival (10.8 months vs. 4.0 months, P < .005), and need for stenting (22% vs. 100%, P = .005). CONCLUSIONS Palliative CRT can effectively improve the symptoms of dysphagia in patients with inoperable squamous esophageal carcinoma. It results in better survival compared with endoscopic stenting in these patients.
Collapse
Affiliation(s)
- Simon K H Wong
- Department of Surgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Abstract
The prognosis for oesophageal cancer is poor with a median survival of 3-5 months and recurrences are frequent. The best chance of cure is successful surgery and pre-operative chemoradiotherapy is used to try and improve outcomes. However, patients may either not respond or may progress during therapy and it is important to differentiate the responders from non-responders. Clinical parameters such as weight gain and improvement in swallowing can be assessed but imaging is used in an attempt to improve outcomes.
Collapse
Affiliation(s)
- S C Rankin
- Guy's & St. Thomas Foundation Trust, London, UK.
| |
Collapse
|
22
|
Aiko S, Yoshizumi Y, Ishizuka T, Sakano T, Kumano I, Sugiura Y, Maehara T. Reduction rate of lymph node metastasis as a significant prognostic factor in esophageal cancer patients treated with neoadjuvant chemoradiation therapy. Dis Esophagus 2007; 20:94-101. [PMID: 17439591 DOI: 10.1111/j.1442-2050.2006.00624.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Tumor regression is used widely as a measure of tumor response following radiation therapy or chemoradiation therapy (CRT). In cases of esophageal cancer, a different pattern of tumor shrinkage is often observed between primary tumors and metastatic lymph nodes (MLNs). Regression of MLNs surrounded by normal tissue may be a more direct measure of the response to CRT than regression of a primary tumor as exfoliative mechanical clearance does not participate in shrinkage of MLNs. In this study we evaluated the significance of the reduction rate (RR) of MLNs as a prognostic factor in esophageal cancer patients treated with neoadjuvant CRT. Forty-two patients with marked MLNs were selected from 93 patients with esophageal carcinoma who had received neoadjuvant CRT. The RRs of the primary tumor and the MLNs were calculated from computed tomography scans. In 20 patients, surgical resection was carried out following CRT. Univariate analysis was used to determine which of the following variables were related to survival: size of the primary tumor and MLNs; RRs of both lesions; degree of lymph node (LN) metastasis; clinical stage; and surgical resection. Multivariate analysis was then performed to assess the prognostic relevance of each variable. The primary tumor was larger than the MLNs in 69% of patients before CRT and in 40% of patients after CRT. In 79% of the patients, the RR of the primary tumor was greater than the RR of the MLNs. The results of the univariate analyses showed that a high RR of the MLNs and surgical resection after CRT were associated with significantly improved survival. The multivariate analysis demonstrated that the RR of MLNs had the strongest influence on survival. The RR of LN metastasis should be evaluated as an important prognostic predictor in patients with marked LN metastasis of esophageal cancer treated with CRT.
Collapse
Affiliation(s)
- S Aiko
- National Defense Medical College, Surgery II, Saitama, Japan.
| | | | | | | | | | | | | |
Collapse
|
23
|
Westerterp M, Van Westreenen HL, Sloof GW, Plukker JTM, Van Lanschot JJB. Role of positron emission tomography in the (re-)staging of oesophageal cancer. Scand J Gastroenterol 2007:116-22. [PMID: 16782630 DOI: 10.1080/00365520600664409] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
BACKGROUND Various studies have demonstrated that 18F-Fluorodeoxyglucose-positron emission tomography (FDG-PET), measuring altered tissue glucose metabolism, is a promising non-invasive method for detecting both distant nodal and haematogenous metastases in patients with oesophageal carcinoma (OC) and might thus prevent futile esophagectomy. Moreover, FDG-PET is a promising tool in assessing response to non-surgical treatment, and might therefore be used for an early decision on whether treatment should be stopped or continued. MATERIAL AND METHODS Review of the recent literature regarding the diagnostic performance of FDG-PET in the preoperative staging of patients with OC and regarding diagnostic accuracy of FDG-PET in assessing response to neoadjuvant therapy in patients with OC compared to conventional techniques (especially computed tomography (CT) and endoscopic ultrasonography (EUS)). RESULTS A search of the literature resulted in the inclusion of 16 studies on the diagnostic value of FDG-PET. Sensitivity and specificity for the detection of locoregional metastases were moderate. Sensitivity and specificity were reasonable for distant metastases. The diagnostic accuracy of FDG-PET in assessing response to treatment was similar to the accuracy of EUS, but significantly higher than that of CT. CONCLUSIONS The staging value of FDG-PET in OC patients is limited in the detection of locoregional metastases; however; its value is higher in the detection of distant lymphatic and haematogenous metastases. Moreover, FDG-PET is a valuable tool for the non-invasive assessment of histopathologic tumour response after neoadjuvant therapy..
Collapse
Affiliation(s)
- Marinke Westerterp
- Department of Surgery, University Medical Center Groningen, The Netherlands.
| | | | | | | | | |
Collapse
|
24
|
Holzapfel K, Rummeny EJ, Hannig C, Beer AJ. [MSCT for staging and response evaluation of esophageal cancer]. Radiologe 2007; 47:101-9. [PMID: 17225186 DOI: 10.1007/s00117-006-1455-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Squamous cell carcinomas and adenocarcinomas account for the majority of cases of esophageal cancer. Esophageal cancer often is diagnosed in advanced stages as clinical symptoms are lacking in early stages. The major aims of imaging in esophageal cancer are to determine local tumor extension (T and N staging), to rule out systemic disease (M staging), and to assess response to neoadjuvant therapy (response evaluation). CT is still inferior to endoscopic ultrasound in differentiating T stages and detecting regional lymph node metastases. However, it plays a central role in determining infiltration into adjacent organs (T4 stage) and in ruling out distant metastases. Multislice-CT (MSCT) offers the possibility of reconstructions, which often help to assess the relationship between tumor and anatomic landmarks like the tracheobronchial tree or the diaphragm. First results of CT volumetry for response evaluation are promising; however, PET and PET/CT with the glucose analogue FDG are the standard methods to evaluate response to neoadjuvant therapy.
Collapse
Affiliation(s)
- K Holzapfel
- Institut für Röntgendiagnostik, Klinikum rechts der Isar, TU München.
| | | | | | | |
Collapse
|
25
|
Beer AJ, Wieder HA, Lordick F, Ott K, Fischer M, Becker K, Stollfuss J, Rummeny EJ. Adenocarcinomas of Esophagogastric Junction: Multi–Detector Row CT to Evaluate Early Response to Neoadjuvant Chemotherapy. Radiology 2006; 239:472-80. [PMID: 16543584 DOI: 10.1148/radiol.2391050043] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To prospectively evaluate multi-detector row computed tomography (CT) in the assessment of early response during neoadjuvant chemotherapy for adenocarcinoma of the esophagogastric junction (AEG). MATERIALS AND METHODS The study protocol was approved by the local ethics committee. Written informed consent was obtained from all patients. Thirty-one patients with an AEG (stage T3 N0/1 M0 or T4 N0/1 M0) were examined with multi-detector row CT before and 2 weeks after the initiation of chemotherapy. There were seven women and 24 men with a mean age of 62 years +/- 8.1 (standard deviation). The maximal transverse tumor diameter was measured and tumor volumetry was performed by three independent readers. The resulting changes were correlated with the histopathologic grade of regression in 21 patients. The differentiation of responders from nonresponders was assessed with receiver operating characteristic analysis in these 21 patients. Interobserver variability was determined in all 31 patients with the Spearman rank correlation. Survival without disease progression was estimated in all patients according to the Kaplan-Meier method. Statistical comparisons between different groups of patients were performed with the log-rank test. RESULTS The interobserver variability for the diameter measurements (R = 0.13-0.20) was higher than that for the volumetric measurements (R = 0.70-0.82). The correlation of histopathologic grades of regression with changes in diameter was not statistically significant for the three readers, whereas the correlation of volume changes with histopathologic grades of regression was statistically significant for two of the three readers (P = .01, .05, and .08). Results of receiver operating characteristic analysis revealed an optimal cutoff level for tumor volumetry at a reduction of volume of 14.8%, which resulted in a sensitivity of 100% (six of six patients) and a specificity of 53% (eight of 15 patients). Although the probability of progression was higher in the nonresponder group than in the responder group (61% vs 40%, respectively), the differences were not statistically significant. CONCLUSION Tumor volumetry based on multi-detector row CT can help predict early response to treatment 2 weeks after the initiation of neoadjuvant chemotherapy in patients with AEG; however, the classic approach of tumor diameter measurement failed to show significant correlation with histopathologic tumor regression.
Collapse
Affiliation(s)
- Ambros J Beer
- Department of Radiology, Technische Universitaet Muenchen, Klinikum rechts der Isar, Ismaninger Str 22, 81675 Munich, Germany.
| | | | | | | | | | | | | | | |
Collapse
|
26
|
Abstract
Neoadjuvant or adjuvant multimodality therapy in oesophageal cancer is introduced in an effort to improve prognosis. However, in a substantial fraction of patients there is no response to this non-surgical therapy. Non-invasive imaging modalities such as computed tomography (CT), endoscopic ultrasound (EUS) and 18F-2-fluoro-2-deoxy-d-glucose positron emission tomography (FDG-PET) have been evaluated for assessing patient response to therapy, and these are described in this review. Currently, FDG-PET seems to be the best available tool for neoadjuvant therapy response assessment in oesophageal cancer.
Collapse
Affiliation(s)
- Gerrit W Sloof
- Department of Diagnostic Imaging/Nuclear Medicine, Academic Medical Centre/University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands.
| |
Collapse
|
27
|
Westerterp M, van Westreenen HL, Reitsma JB, Hoekstra OS, Stoker J, Fockens P, Jager PL, Van Eck-Smit BLF, Plukker JTM, van Lanschot JJB, Sloof GW. Esophageal cancer: CT, endoscopic US, and FDG PET for assessment of response to neoadjuvant therapy--systematic review. Radiology 2005; 236:841-51. [PMID: 16118165 DOI: 10.1148/radiol.2363041042] [Citation(s) in RCA: 227] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
PURPOSE To compare diagnostic accuracy of computed tomography (CT), endoscopic ultrasonography (US), and fluorine 18 fluorodeoxyglucose (FDG) positron emission tomography (PET) for assessment of response to neoadjuvant therapy in patients with esophageal cancer by using a systematic review of the literature. MATERIALS AND METHODS MEDLINE and EMBASE databases and Cochrane Database of Systematic Reviews were searched for relevant studies. Two reviewers independently assessed the methodological quality of each study. Summary receiver operating characteristic (ROC) analysis was used to summarize and compare the diagnostic accuracy of the three modalities. RESULTS Four studies with CT, 13 with endoscopic US, and seven with FDG PET met inclusion criteria. Percentages of the maximum score in regard to methodological quality ranged from 15% to 100%. Summary ROC analysis could be performed for three studies with CT, four with endoscopic US, and four with FDG PET. The maximum joint values for sensitivity and specificity were 54% for CT, 86% for endoscopic US, and 85% for FDG PET. Accuracy of CT was significantly lower than that of FDG PET (P < .006) and of endoscopic US (P < .003). Accuracy of FDG PET and that of endoscopic US were similar (P = .839). In all patients, CT was always feasible, whereas endoscopic US was not feasible in 6% of the patients, and FDG PET was not feasible in less than 1%. CONCLUSION CT has poor accuracy for assessment of response to neoadjuvant therapy in patients with esophageal cancer. Endoscopic US and FDG PET have equivalent good accuracy, but endoscopic US is not always feasible after chemotherapy and radiation therapy. FDG PET seems to be a promising noninvasive tool for assessment of neoadjuvant therapy in patients with esophageal cancer.
Collapse
Affiliation(s)
- Marinke Westerterp
- Department of Surgery, Academic Medical Center, University of Amsterdam, Suite G4-130, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Koshy M, Esiashvilli N, Landry JC, Thomas CR, Matthews RH. Multiple management modalities in esophageal cancer: epidemiology, presentation and progression, work-up, and surgical approaches. Oncologist 2004; 9:137-46. [PMID: 15047918 DOI: 10.1634/theoncologist.9-2-137] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Annually, approximately 13,200 people in the U.S. are diagnosed with esophageal cancer and 12,500 die of this malignancy. Of new cases, 9,900 occur in men and 3,300 occur in women. In part I of this two-part series, we explore the epidemiology, presentation and progression, work-up, and surgical approaches for esophageal cancer. In the 1960s, squamous cell cancers made up greater than 90% of all esophageal tumors. The incidence of esophageal adenocarcinomas has risen considerably over the past two decades, such that they are now more prevalent than squamous cell cancer in the western hemisphere. Despite advances in therapeutic modalities for this disease, half the patients are incurable at presentation, and overall survival after diagnosis is grim. Evolving knowledge regarding the etiology of esophageal carcinoma may lead to better preventive methods and treatment options for early stage superficial cancers of the esophagus. The use of endoscopic ultrasound and the developing role of positron emission tomography have led to better diagnostic accuracy in this disease. For years, the standard of care for esophageal cancer has been surgery; there are several variants of the surgical approach. We will discuss combined modality approaches in part II of this series.
Collapse
Affiliation(s)
- Mary Koshy
- Emory University School of Medicine, Department of Radiation Oncology, Atlanta, Georgia, USA
| | | | | | | | | |
Collapse
|
29
|
Schmutz G, Fournier L, Le Pennec V, Billiard JS. [Esophageal disease: is cross sectional imaging contributive?]. JOURNAL DE RADIOLOGIE 2004; 85:478-99. [PMID: 15184793 DOI: 10.1016/s0221-0363(04)97620-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
For a long time, esophagography and endoscopy were the major diagnostic tests used for evaluation of the esophagus. Now, the development of computed tomography, endosonography and MR imaging has permitted more comprehensive evaluation of esophageal diseases. Cross sectional imaging is essential to evaluate the relationship between esophageal lesions and adjacent mediastinal structures and to evaluate the thickness of the esophageal wall.
Collapse
Affiliation(s)
- G Schmutz
- Service de Radiologie, CHU avenue de la Côte de Nacre-14033 Caen
| | | | | | | |
Collapse
|
30
|
Kato H, Kuwano H, Nakajima M, Miyazaki T, Yoshikawa M, Masuda N, Fukuchi M, Manda R, Tsukada K, Oriuchi N, Endo K. Usefulness of positron emission tomography for assessing the response of neoadjuvant chemoradiotherapy in patients with esophageal cancer. Am J Surg 2002; 184:279-83. [PMID: 12354600 DOI: 10.1016/s0002-9610(02)00932-7] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
BACKGROUND In this study, we retrospectively assessed the performance of 18-F-fluorodeoxyglucose positron emission tomography (FDG-PET) compared with computed tomography (CT) and esophagography for assessing the response of advanced esophageal squamous cell carcinoma (SCC) to neoadjuvant chemoradiotherapy. METHODS We studied 10 patients with thoracic esophageal SCC who received neoadjuvant chemoradiotherapy followed by surgery. Tumor response was assessed by CT, endoscopy, esophagography and FDG-PET before and after neoadjuvant treatment. RESULTS Assessment of the rate of decrease in standardized uptake value (SUV) revealed a partial response (more than 50% decrease) in 5 (50%) of the patients, and assessment of length decrease of FDG uptake showed a partial response in 9 (90%) of the patients. Comparison of the histological response and the rate of decrease of various parameters revealed significant associations between histological response and tumor length (P <0.05), SUV after neoadjuvant therapy (P <0.05), and reduction in the extent of FDG uptake (P <0.01). However histological response was not significantly correlated with the rate of reduction of SUV, for both CT and esophagography. CONCLUSIONS FDG-PET may be of considerable value for predicting the pathologic response of esophageal SCC to neoadjuvant therapy. Despite assessment of SUV before neoadjuvant therapy, low FDG uptake after therapy and reduction in the extent of FDG uptake may provide a reliable assessment of the response to therapy.
Collapse
Affiliation(s)
- Hiroyuki Kato
- Department of Surgery I, Gunma University Faculty of Medicine, 3-39-22, Showa-machi, Maebashi 371-8511, Japan.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Chan ACW, Lee DWH, Griffith JF, Leung SF, Lam YH, Lam CCH, Lau JYW, Ng EKW, Chung SCS. The clinical efficacy of neoadjuvant chemotherapy in squamous esophageal cancer: a prospective nonrandomized study of pulse and continuous-infusion regimens with Cisplatin and 5-Fluorouracil. Ann Surg Oncol 2002; 9:617-24. [PMID: 12167574 DOI: 10.1007/bf02574476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND We evaluated cisplatin and 5-fluorouracil as preoperative adjuvant chemotherapy for patients with locally advanced squamous esophageal cancer and compared two different infusion regimens. The outcomes were also compared with those of our historical control patients treated by surgery alone. METHODS From 1991 to 1997, 83 consecutive esophageal cancer patients underwent surgical exploration after completion of two cycles of cisplatin and 5-fluorouracil chemotherapy regimens, either in pulse or in continuous infusion cycles. Outcomes were compared with those of 76 historical control patients. Both groups were comparable in demographic characteristics and tumor stages. The resection rates, operative morbidity, mortality, and survival rates were compared. RESULTS Partial response was achieved in 50% of patients who received chemotherapy. There was no chemotherapy-related mortality. The resection, morbidity, and mortality rates and median survival between the surgery-alone group and the chemotherapy group were 71.1% vs. 82%, 51% vs. 55%, and 4% vs. 10.8%, 12.0 vs. 13.5 months, respectively (P >.05). There was also no statistically significant difference between the two regimens. CONCLUSIONS Preoperative adjuvant chemotherapy with cisplatin and 5-fluorouracil infusion, in pulse or continuous regimens, followed by surgery for squamous esophageal cancer patients had no added benefit in the overall survival.
Collapse
Affiliation(s)
- A C W Chan
- Department of Surgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Riedel M, Stein HJ, Mounyam L, Zimmermann F, Fink U, Siewert JR. Influence of simultaneous neoadjuvant radiotherapy and chemotherapy on bronchoscopic findings and lung function in patients with locally advanced proximal esophageal cancer. Am J Respir Crit Care Med 2000; 162:1741-6. [PMID: 11069806 DOI: 10.1164/ajrccm.162.5.2003115] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
To assess the bronchoscopic and lung function changes induced by preoperative radiochemotherapy (30 Gy radiation and 5-fluorouracil) in patients with proximal esophageal cancer, we prospectively compared the findings in 77 consecutive patients before and after the therapy. All patients completed the radiochemotherapy protocol; toxicity was minimal. Sixty-four patients underwent surgery, 48 had total gross removal of disease, and six had a complete histologic response. Of the 13 patients who developed apparent direct macroscopic signs of tumor invasion into the airways during therapy, histologic proof of cancer was obtained in only one of the abnormalities. Bronchoscopy was falsely negative in six patients in whom airway invasion of the cancer was found at surgery. Neoadjuvant therapy led to no systematic changes in the appearance of the uninvolved tracheal mucosa; microscopically, an increase in postinflammatory changes, hyperplasia, and metaplasia was found. There was no significant change in the values of lung function parameters after the therapy. No patient developed symptoms suggestive of radiation-induced lung changes, although in one of them, subtle radiologic features consistent with radiation pneumonitis were found. No patient died of postoperative pulmonary complications. The interpretation of bronchoscopy in the assessment of airway invasion of esophageal cancer after radiochemotherapy is more difficult than at baseline staging; the positive predictive value of macroscopic abnormalities without microscopic proof of cancer is low, and even with extensive sampling for histology and cytology, the procedure was falsely negative in 9.4%. Neoadjuvant therapy did not induce radiation pneumonitis or changes in lung function that could be of concern at the following operation.
Collapse
Affiliation(s)
- M Riedel
- Chirurgische Klinik und Poliklinik, Klinik für Strahlentherapie, and Pneumologie der I. Medizinischen Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität, München, Germany.
| | | | | | | | | | | |
Collapse
|
33
|
Griffith JF, Chan AC, Ahuja AT, Leung SF, Chow LT, Chung SC, Metreweli C. Neck ultrasound in staging squamous oesophageal carcinoma - a high yield technique. Clin Radiol 2000; 55:696-701. [PMID: 10988048 DOI: 10.1053/crad.2000.0502] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
AIM This study evaluates the use of neck ultrasound in staging squamous oesophageal carcinoma. MATERIALS AND METHODS A prospective analysis of the clinical, neck ultrasound (US) and thoraco-abdominal computed tomography (CT) findings in 121 patients with squamous oesophageal carcinoma at presentation was performed. The relationship between malignant neck nodes, mediastinal and abdominal adenopathy, location and size of the primary tumour was analysed. RESULTS Ten of 121 patients (8%) had clinically palpable neck nodes which were deemed malignant in six (5%) following US and fine-needle aspiration for cytology. Of those 111 patients with no palpable neck nodes, 31 (28%) had malignant nodes shown on US. The more cephalad the location of the primary tumour, the higher the frequency of malignant neck nodes which were found in 80%, 52%, 29% and 9% of cervical, upper thoracic, mid-thoracic and lower thoracic oesophageal tumours, respectively. Eleven (29%) of the 38 patients with malignant neck nodes shown on US had no CT evidence of additional adenopathy in the mediastinum or upper abdomen. Neck US altered TNM staging in 22/121 (18%) patients at presentation. CONCLUSION Neck US frequently detects clinically impalpable metastatic nodes leading to altered TNM staging in patients with squamous oesophageal carcinoma. We advocate its routine use when staging squamous oesophageal carcinoma.
Collapse
Affiliation(s)
- J F Griffith
- Departments of Diagnostic Radiology and Organ Imaging, Chinese University of Hong Kong, New Terrorities.
| | | | | | | | | | | | | |
Collapse
|