Abstract
Objective: The purpose of this study was to demonstrate the appearance of ampullary carcinomas on MR images. Methods: Sixteen patients with ampullary carcinomas underwent MR imaging. Tumor detectability, signal intensity of the tumor, and enhancement pattern on dynamic study were analyzed. MR cholangiopancreatography (MRCP) findings were assessed and were compared with the endoscopic retrograde cholangiopancreatography (ERCP) findings. Results: Signal intensities of the tumor on each image were various. Dynamic study detected all tumors except one, and all detected tumors showed delayed enhancement. MRCP delineated more than half of the tumors as a filling defect within the duodenal fluid and clearly demonstrated pancreaticobiliary ductal. Conclusions: Dynamic study is mandatory in diagnosing ampullary carcinoma, because it can depict most of the tumors, and delayed enhancement of such tumors is characteristic in case of ampullary carcinoma. MRCP can provide reliable information about pancreaticobiliary duct and it can replace diagnostic ERCP.
| Original language | English |
|---|---|
| Pages (from-to) | 711-717 |
| Number of pages | 7 |
| Journal | Journal of Computer Assisted Tomography |
| Volume | 26 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Sep 1 2002 |
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All Science Journal Classification (ASJC) codes
- Radiology Nuclear Medicine and imaging
Cite this
MR imaging of ampullary carcinomas. / Irie, Hiroyuki; Honda, Hiroshi; Shinozaki, Kenji; Yoshimitsu, Kengo; Aibe, Hitoshi; Nishie, Akihiro; Nakayama, Tomohiro; Masuda, Kouji.
In: Journal of Computer Assisted Tomography, Vol. 26, No. 5, 01.09.2002, p. 711-717.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - MR imaging of ampullary carcinomas
AU - Irie, Hiroyuki
AU - Honda, Hiroshi
AU - Shinozaki, Kenji
AU - Yoshimitsu, Kengo
AU - Aibe, Hitoshi
AU - Nishie, Akihiro
AU - Nakayama, Tomohiro
AU - Masuda, Kouji
PY - 2002/9/1
Y1 - 2002/9/1
N2 - Objective: The purpose of this study was to demonstrate the appearance of ampullary carcinomas on MR images. Methods: Sixteen patients with ampullary carcinomas underwent MR imaging. Tumor detectability, signal intensity of the tumor, and enhancement pattern on dynamic study were analyzed. MR cholangiopancreatography (MRCP) findings were assessed and were compared with the endoscopic retrograde cholangiopancreatography (ERCP) findings. Results: Signal intensities of the tumor on each image were various. Dynamic study detected all tumors except one, and all detected tumors showed delayed enhancement. MRCP delineated more than half of the tumors as a filling defect within the duodenal fluid and clearly demonstrated pancreaticobiliary ductal. Conclusions: Dynamic study is mandatory in diagnosing ampullary carcinoma, because it can depict most of the tumors, and delayed enhancement of such tumors is characteristic in case of ampullary carcinoma. MRCP can provide reliable information about pancreaticobiliary duct and it can replace diagnostic ERCP.
AB - Objective: The purpose of this study was to demonstrate the appearance of ampullary carcinomas on MR images. Methods: Sixteen patients with ampullary carcinomas underwent MR imaging. Tumor detectability, signal intensity of the tumor, and enhancement pattern on dynamic study were analyzed. MR cholangiopancreatography (MRCP) findings were assessed and were compared with the endoscopic retrograde cholangiopancreatography (ERCP) findings. Results: Signal intensities of the tumor on each image were various. Dynamic study detected all tumors except one, and all detected tumors showed delayed enhancement. MRCP delineated more than half of the tumors as a filling defect within the duodenal fluid and clearly demonstrated pancreaticobiliary ductal. Conclusions: Dynamic study is mandatory in diagnosing ampullary carcinoma, because it can depict most of the tumors, and delayed enhancement of such tumors is characteristic in case of ampullary carcinoma. MRCP can provide reliable information about pancreaticobiliary duct and it can replace diagnostic ERCP.
UR - http://www.scopus.com/inward/record.url?scp=0036760524&partnerID=8YFLogxK
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U2 - 10.1097/00004728-200209000-00008
DO - 10.1097/00004728-200209000-00008
M3 - Article
C2 - 12439303
AN - SCOPUS:0036760524
VL - 26
SP - 711
EP - 717
JO - Journal of Computer Assisted Tomography
JF - Journal of Computer Assisted Tomography
SN - 0363-8715
IS - 5
ER -