ABSTRACT
Objective To evaluate the value of magnetic resonance thoracic ductography (MRTD)and magnetic resonance (MR) pelvic scanning in the chylous leakage of female reproductive system.Methods A retrospective evaluation of the imaging findings of MRTD and MR pelvic in 7 patients was performed,and compared with direct lymphangiography (DLG),lymphoscintigraphy and surgery.Results The rate of thoracic duct visualization in DLG was 71 .4% (5/7 ).The rate of venous angle visualization inlym-phoscintigraphy was 71.4% (5/7).The rate of thoracic duct visualization in MRTD was 100% (7/7).Except for 1 case withgeneral-ly normal findings,the remaining 6 cases showedobstruction of the thoracic duct in MRTD.Among those cases,bilateral drainage was found in 1 case,right thoracic ductwas seen in 1 case,multiple tortuous dilated lymphatic channelsaround the venous angle was detected in 4 cases,and multiple lymphangiomas was seen in 1 case.All of the 7 patients were conducted by surgery.6 cases were confirmed as obstruction of the thoracic duct.MRTD & MR pelvic found more multiple lymphangiomas lesions and detected 2 cases with bone abnormalities.Conclusion MRTD combined with MR pelvic could provide more comprehensive assessment of female re-productive system chylous leakage.It should be used as routine examination before operation.
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Objective To evaluate the effect of magnetic resonance thoracic ductography (MRTD)in the diagnosis of right thoracic duct.Methods MRTD data were analyzed retrospective,and the detection rate of right thoracic duct was summarized and compared with that of lymphoscintigraphy,direct lymphangiography and operation.Results 12 cases of right thoracic duct were detected in 1547 cases of MRTD.The detection rate was 0.78%,in which 1 case was complied with total internal organs inversion,and 1 case with right aortic arch.Lymphoscintigraphy were performed in all 12 cases and right thoracic duct were detected in 4 cases.Direct lymphangiography were performed in 4 cases and right thoracic duct were observed in all of them.7 cases of them received right lum-bar duct adhesiolysis.Conclusion MRTD is a noninvasive method for diagnosis of right thoracic duct,which providing useful guid-ance for surgical operation.Its detection rate and diagnostic accuracy are higher than those of lymphoscintigraphy.
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Objective To describe the MRI findings in patients with Acquired hepatiocerbral Degeneration(AHCD) and evaluate the role of MRI in dignosis of AHCD. Methods 26 patients with chornic hepatic failure under went brain MRI scan. Eight of these patients had abdominal MR digital subtract angiography(MRDSA) examnation. 25 patients had plasma ammonia levels test two weeks after MR exmnation. Results 22 patients had abnormal MRI findings, T 1WI demonstrated incresed signal in the globus pallidus (22/26), putmen (4/26), mesencephalon surrounding red nucleus(15/26),and in the anterior pituitary (12/26). While T 2WI demonstraied no corresponding alteration in signal intensity. Eight patients which had MRDSA showed obvious portal systemic shunts. There was positive correlation between plasam ammonia level and abnormal signal( r = 0.521 6, P