Browsing by Author "Milićević, M. (57510647400)"

INTRODUCTION: The study was designed to determine if there was a difference between apparent diffusion coefficient (ADC) values using diffusion weighted imaging (DWI) MRI technique between different malignant focal liver lesions. PATIENTS AND METHODS: The study included 63 patients with focal hepatic lesions: fourteen patients (22.2%) with hepatocellular carcinoma (HCC), 16 patients (25.4%) with hepatic metastatic colorectal tumors, 17 patients (26.9%) with cavernous haemangioma and 16 patients (25.4%) with hepatic cysts. MRI was performed with 1.5T scanner, using EPI sequence with ADC values being determined for all lesions based on three b values. RESULTS: ADC values were statistically different among the groups (F = 70.7, p < 0.01): HCC patients 1.11 +/- 0.29 x 10(-3) s/mm2, metastatic tumours 2.18 +/- 0.15 x 10(-3) s/mm2, haemangioma 2.22 +/- 0.32 x 10(-3) s/mm, cysts 3.08 +/- 0.03 x 10(-3) s/mm2. Furthermore, there was statistically significant difference between benign lesions (haemangiom and cysts, 2.36 +/- 0.43 x 10(-3) s/mm2), and malignant diseases (HCC and secondary tumors, 1.52 +/- 0.58 x 10(-3) s/mm2), t = 5,6, p < 0.01.CONCLUSION: DWI technique could be helpful in defining the focal liver lesions.

Magnetic resonance cholangiopancreatography (MR CP) is a relatively new, noninvasive method in patients with pancreaticobiliary diseases, which is comparable to invasive endoscopic retrograde cholangiopancreatography (ERCP). One of the most common indications for MRCP is malignant obstruction of the bile and pancreatic ducts. Standard imaging protocol includes routine abdominal study followed by a sequence for MRCP adapted to each of the patients and site of the malignant process. MRCP is a simple to perform, does not exposure the patients to radiation, requires no anesthesia, is less operator dependent and allows better visualization of ducts proximal to an obstruction. Thus, during one examination only, it is possible to assess not only pancreaticobiliary system but also abdominal structures, which increases diagnostic value of MR and is therefore, optimal method in evaluation of these patients.

Scintiscanning and laboratory and clinical examinations in most cases lead to accurate preoperative hydatid cyst diagnosis and reveal the localization of the cyst in the liver. Selecting the adequate operative procedure and taking all precautions to prevent contamination during surgery, ensure good results and minimize the incidence of postoperative complications. Experience with 204 patients is presented. © 1982 Société Internationale de Chirurgie.