ABSTRACT
Objective To analyze the MRI characteristics of hematospermia seminal vesiculitis(HSV) and evaluate the diagnostic value of MRI in HSV. Methods The MRI parameters of 25 HSV patients underwent magnetic resonance imaging(MRI) imaging with SE T 1WI(TR/TE 558/14ms), Flash 2D water excitement(TR/TE 18.5/5.2ms), TSE T 2WI(TR/TE 4000/99ms) and fat suppression sequences were retrospectively analyzed. Results The bilateral seminal vesicles in all 25 patients with HSV enlarged. On SE T1-weighted images, intraseminal vesicle hemorrhage appeared as high signal intensity, which appeared more bright on Flash 2D water excitement sequence. The hypointensive duct wall of seminal vesicles could be clearly seen because of hyperintensive hemorrhage. On TSE T2-weighted images, intraseminal vesicle hemorrhage appeared as relatively lower signal intensity, and the duct wall of seminal vesicles could not clearly be depicted for being covered with relatively hypointensive hemorrhage. Conclusion Hematospermia seminal vesiculitis could be identified by MRI, and MRI was the best imaging method for examining hematospermia seminal vesiculitis.
ABSTRACT
Objective To study the value of CT and MRI in diagnosis of Caroli disease. Methods CT and MR findings in 10 patients with histologically proved Caroli disease were retrospectively reviewed. All the patients underwent both liver plane CT and contrast-enhanced CT. Five of 10 patients underwent MR imaging with Flash 2D T_1WI(TR/TE 148/4ms), True Fisp T_2WI(TR/TE 5.8/2.9ms) and MRCP(TR/TE 1120/86ms) sequences. Results The imaging paremeters of Caroli disease were multiple saccular/columnar dilatation of intrahepatic biliary ducts and communication with each other, which only partly were depicted at CT, however, all imaging findings were depicted at MRI True Fisp and MRCP without contrast-enhanced scanning. Of 10 patients, 4 cases were type Ⅰ of Caroli disease with hepatolith, but without hepatic cirrhosis and portal hypertention; 6 cases type Ⅱ,all complicated with hepatic cirrhosis and portal hypertension. Of 6 patients with type Ⅱ Caroli disease, 4 cases had not hepatolith, and 2 cases had hepatolith. Of 10 patients, 3 cases had bilateral sponge kidney. Conclusion Caroli disease could be identified by CT or MRI, but MRI was superior to CT in depicting Caroli disease.
ABSTRACT
Objective To measure the angle and distance between superior mesenteric artery (SMA) and abdominal aorta (AA) at the level of left renal vein and duodenum in Chinese.Methods The angle and distance between SMA and AA were measured in 41 patients with normal CT findings in the supine position using 16 slices multislice spiral CT(MSCT)scanner.Results The average angle of 41 normal cases was 47.4??18.3? (mean?SD), and 3 of 41 (7.3%)≤15?,10 of 41 (24.4%)≥70?. At the level of left renal vein and duodenum, the average distance between SMA and AA were (1.3?0.4) cm and (1.4?0.4) cm respectively.Conclusion MSCT allows accurately measure the angle and distance between SMA and AA, it shows significance in the diagnosis of SMA syndrome and nutcracker phenomenon.