کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4221985 1281637 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Radiological assessment of mesenteric and retroperitoneal cysts in adults: is there a role for chemical shift MRI?
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی رادیولوژی و تصویربرداری
پیش نمایش صفحه اول مقاله
Radiological assessment of mesenteric and retroperitoneal cysts in adults: is there a role for chemical shift MRI?
چکیده انگلیسی

ObjectiveThe purpose of this study was to assess the potential role for chemical shift magnetic resonance imaging (MRI) in identifying lymphangiomas from other cystic mesenteric and retroperitoneal masses.Materials and methodsA retrospective search of radiology database identified 24 consecutive patients with mesenteric and retroperitoneal cysts (nine men, 15 women; mean age, 41 years; age range, 19–75 years) who had undergone MR which included in-phase and opposed-phase chemical shift imaging. Signal intensity (SI) decrease between in-phase and opposed-phase MR images of the cyst was evaluated qualitatively by two radiologists. Ultrasound (US), computed tomography (CT), and MRI findings of the morphological appearances of all the cystic lesions that demonstrated significant signal drop on chemical shift MR were also recorded.ResultsOf mesenteric and retroperitoneal cysts, 33% (8/24) revealed qualitative decrease in intensity on opposed-phase MR images relative to that seen on in-phase images. On ultrasound, these cysts demonstrated anechoic simple fluid. Their mean CT attenuation was 13 HU (range: 5–20 HU). Signal loss on fat-suppressed T1-weighted sequences was displayed only by a single cyst. None of the lesions with qualitative SI decrease on opposed-phase MR showed suggestion of lipid on US and CT.ConclusionThe presence of intra cystic lipid detected by chemical shift MR may not be overt on cross-sectional imaging such as US and CT. Chemical shift MRI provides additional sensitivity and specificity as an imaging test for demonstration of lipid within mesenteric and retroperitoneal cysts enabling a higher diagnostic yield for lymphangioma leading to more appropriate patient management.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Clinical Imaging - Volume 35, Issue 2, March–April 2011, Pages 127–132
نویسندگان
, , ,