Intramural Metastasis of Esophageal Carcinoma to the Reconstructed Gastric Tube Detected by FDG PET/CT

2009 ◽  
Vol 34 (8) ◽  
pp. 523-525 ◽  
Author(s):  
Kaori Nishida ◽  
Chio Okuyama ◽  
Takao Kubota ◽  
Shigenori Matsushima ◽  
Minori Oda ◽  
...  
2018 ◽  
Vol 43 (11) ◽  
pp. 846-847
Author(s):  
Futao Cui ◽  
Minggang Su ◽  
Chunmeng Chen ◽  
Rong Tian

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 15090-15090
Author(s):  
J. M. Yu ◽  
X. J. Zhong ◽  
B. J. Zhang ◽  
D. B. Mu ◽  
A. Q. Han ◽  
...  

15090 Background: Although results of clinical studies have demonstrated FDG PET/CT improved target volume delineation in various tumors, only few studies compared delineation based on PET/CT with pathologic examination. Aim of our study was to compare anatomic imaging modalities including computed tomography (CT), esophagram, endoscopy with FDG PET/CT for delineation of gross tumor volume (GTV) in esophageal carcinoma and to validate the results with the pathologic examination. Methods: Thirty patients with stages II-III squamous cell carcinoma underwent transthoracic esophagectomy were enrolled. PET/CT, esophagram and endoscopy were performed with patients before operations. The length of the lesion on the PET/CT scan and on the CT portion of the PET/CT and the PET scan alone was determined independently by 3 separate investigative groups. PET/CT scan was evaluated by visual inspection for abnormality. A standard uptake value (SUV) of 2.5 was used in the PET scan to delineate the tumor extent. The lengths of GTVs determined with the five modalities (PET/CT, PET, CT, esophagram and endoscopy) were compared quantitatively and validated with the pathologic specimen. The sizes of the tumors were measured by pathologic examination which was considered as the gold standard. Results: Of the 30 patients, 9 had T2 tumors, 20 had T3 tumors and 1 had T4 tumor with an involvement of pleura. Three tumors were located at the upper esophagus, 14 at the middle esophagus, 13 at the lower esophagus. The mean length of the carcinoma was 5.85cm(SD 2.50cm) measured by pathologic examination, 5.79cm (SD 2.04cm) as determined by PET scan, 5.14cm (SD 1.65cm) by PET/CT scan, 5.42 cm(SD 2.42cm)by CT scan, 5.50cm(SD 2.79cm) by endoscopy, and 6.07cm(SD 2.75cm) by esophagram respectively. Although the lengths of the tumors as measured by the five imaging modalities were no significant difference, the result of PET was the most accurate. Conclusions: Compared with tumor lengths measured by pathologic examination, PET with a SUV 2.5 was found to be the most accurate modality and can help the radiation oncologist delineate the GTV of esophageal carcinoma precisely. No significant financial relationships to disclose.


Author(s):  
Hope A. Feldman ◽  
Jeremy J. Erasmus ◽  
Nicolas Zhou ◽  
Mara B. Antonoff ◽  
Reza J. Mehran ◽  
...  

2014 ◽  
Vol 111 ◽  
pp. S50
Author(s):  
P. Dirix ◽  
C. Deroose ◽  
P. Nafteux ◽  
T. Lerut ◽  
J. Coolen ◽  
...  

2020 ◽  
Vol 11 (16) ◽  
pp. 4851-4860
Author(s):  
Xu-Sheng Liu ◽  
Ling-Ling Yuan ◽  
Yan Gao ◽  
Lu-Meng Zhou ◽  
Jian-Wei Yang ◽  
...  

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e15620-e15620
Author(s):  
D. HanJ. Yu ◽  
X. Zhong ◽  
D. Mu ◽  
Z. Fu ◽  
B. Zhang ◽  
...  

e15620 Background: To determine whether FLT PET/CT can detect regional lymph nodes metastases in untreated thoracic esophageal squamous cell carcinoma. In view of the reported high sensitivity of FDG PET/CT for the evaluation of thoracic nodules of esophageal carcinoma, we additionally performed FDG PET/CT for direct comparison with that of FLT. Methods: From March 2008 to December 2008, 18 patients with thoracic esophageal squamous cell carcinoma underwent dual-tracer PET/CT examinations before surgery. The results of reviewing side-by-side FDG PET/CT and FLT PET/CT images for the diagnosis of locoregional lymph node metastases were compared prospectively in relation to pathologic findings. The PET images were visually inspected with the maximum standardized uptake value (SUVmax) determined from a circular region of interest (ROI) over the entire lesion. The differential threshold for malignancy was set as SUVFDG≥2.5, and SUVFLT≥1.4, respectively. Results: All patients underwent esophagectomy and lymphadenectomy, and pathologic examination confirmed nodes positive for metastasis in 14 patients and 42 of 344 excised nodes. The uptake of FDG (median SUVmax, 5.59; range, 2.5–10.6) in locoregional lymph nodes metastasis was significantly higher than that of FLT (median SUVmax, 2.93; range, 1.6–4.6). There were 14 false positive nodes in FDG PET and only 3 in FLT PET, 7 false negative nodes in FDG PET, while 11 false negative nodes in FLT PET. The sensitivity, specificity, accuracy, positive predictive value, and negative predictive value of FLT PET/CT were 73.81%, 99.01%, 95.93%, 91.18% and 96.45%, respectively, whereas those of FDG PET/CT were 83.33%, 95.36%, 93.90%, 71.43% and 95.36%, respectively. P values were 0.425, 0.014, 0.298, 0.055, and 0.541, respectively. Conclusions: FLT uptake in regional lymph node of esophageal carcinoma is significantly lower compared with FDG uptake.FLT PET has fewer false-positive findings compared with FDG PET. The specificity of FLT PET/CT is higher than that of FDG. We suggest that esophageal carcinoma N-staging need to combine FLT with FDG PET/CT images. No significant financial relationships to disclose.


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