Abstract:
OBJECTIVE:To verify the clinical outcomes of applying water swallowing to MR esophagography. METHODS:Thirty patients confirmed postoperatively or histopathologically with thoracic esophageal carcinoma by endoscopic biopsy and 10 healthy volunteers with normal esophagus underwent respectively conventional magnetic resonance imaging (MRI) detection and water swallowing MR esophagography. Of those patients, 4 underwent second examination after radiotherapy. Assessment on imaging effects of MR esophagography was performed. Assessment on definition on MR esophagography of the tumor in both upper and lower ends, specific localization, tumor size finally measured, coincidence with the gross pathologic types and tumor staging were respectively performed by comparison with conventional MRI. Additionally, we evaluated the outcomes of radiotherapy by comparing the previous MR esophagography with the second one with interventional technique. RESULTS:Of the total 44 images of MR esophagography, 97.7% (43/44) were in high resolution by sagittal view and 81.8% (36/44) by cross-section. 93.3% (56/60) of the MR esophagography were clearly defined with the neoplastic lesion ends in the 30 patients with thoracic esophageal carcinoma, compared with 11.7% (7/60) by conventional MRI. The results were totally different in statistics (P<0.005). Preoperative conventional MRI detection of the 22 cases in 25 undergone radical resection suggested vague diameter of the primary tumor and impossibly identified it at middle-lower thoracic esophagus in 5, and even failed to confirm gross pathologic types in 19 cases. Yet, MR esophagography with water swallowing represented accurate tumor length (graded as excellent) in 88% (22/25), localization in 100% (25/25), exact gross pathologic types in 88% (22/25), and accuracy for tumor staging in 80.8% (21/26) compared to 92.3% (24/26) by conventional MRI. Therapeutic effects achieved in 4 patients with radiotherapy. CONCLUSIONS:MR esophagography with water swallowing makes optimal esophagram and is of great value in the preoperative diagnosis of thoracic esophageal cancer and assessment of the radiotherapy effects for patients with such neoplasm, which may serve as an alternative for conventional MRI.
journal_name
Eur J Radioljournal_title
European journal of radiologyauthors
Zhang J,Hu W,Zang L,Yao Y,Tang Y,Qian Z,Gao P,Wu X,Li S,Xie Z,Yuan Xdoi
10.1016/j.ejrad.2011.05.010subject
Has Abstractpub_date
2012-09-01 00:00:00pages
1980-5issue
9eissn
0720-048Xissn
1872-7727pii
S0720-048X(11)00487-6journal_volume
81pub_type
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journal_title:European journal of radiology
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