Umberto Rozzanigo

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PURPOSE To evaluate the late sinusoidal phase of contrast enhancement with a 2nd-generation ultrasound contrast enhanced medium in the characterization of hypoechoic focal liver lesions. METHODS We studied 88 hypoechoic liver lesions (diameter range, 1-18 cm; with 18 lesions 2 cm or less) found on conventional grayscale sonography (US) with(More)
BACKGROUND/AIMS To report a case of bleeding after pancreatoduodenectomy in a patient with pancreatic leak and portal thrombosis who was successfully treated with an endovascular approach. METHODS A 58-year-old male, suffering from neoplasm of the distal bile duct, underwent a pylorus-preserving Whipple procedure. On the 18th day, following a sudden drop(More)
PURPOSE To compare the manual measurements of lower limbs on digital images with those obtained with dedicated software. MATERIALS AND METHODS Forty patients with a clinical suspicion of lower limb deformity were enrolled. Eighty digital radiographs were produced with a remote-controlled radiography system (Philips Omnidiagnost). The measurements were(More)
This study was performed to evaluate the results and complications of percutaneous vertebroplasty (PVP) performed under CT guidance. We treated 106 patients (182 PVP): 67 for osteoporotic vertebral compression fracture, and 39 for osteolytic metastases. The first 78 patients were treated using computed tomography (CT) combined with conventional fluoroscopy(More)
PURPOSE To evaluate the capabilities of contrast-enhanced ultrasound (CEUS) in the characterization of hepatocarcinoma (HCC) in terms of accuracy as compared to spiral CT and diagnostic gain as compared to conventional and Doppler US. MATERIALS AND METHODS Forty-three patients with viral hepatopathy or cirrhosis diagnosed with HCC (6 histologically and 37(More)
This study evaluated Magnetic Resonance Imaging (MRI) in infected diabetic foot ulcers. Sixteen diabetic patients underwent foot MRI between January 2006 and September 2007 for suspected unilateral osteomyelitis. Three of 16 patients showed radiographic changes due to Charcot neuropathic osteoarthropathy. Twelve of 16 patients also underwent MR angiography(More)
The aim of this retrospective study was to assess the performance of fluorine-18 fluorodeoxyglucose positron emission tomography-computed tomography ([18F]-FDG PET-CT) for diagnosing large-vessel vasculitis (LVV) for a subset of patients at increased risk of rheumatic/immune diseases, taking into account concurrent immunosuppressive therapy. The study(More)
OBJECTIVE AND IMPORTANCE despite recent progress in imaging, it is still difficult to distinguish between pituitary adenoma and hyperplasia, even using Magnetic Resonance Imaging (MRI) with gadolinium injection. We describe an example of reactive pituitary hyperplasia from primary hypothyroidism that mimicked a pituitary macroadenoma in a child. CLINICAL(More)
The aim of this pictorial essay is to illustrate the morphological [computed tomography (CT) and magnetic resonance imaging (MRI)], vascular (angiography) and functional (nuclear medicine) features of paragangliomas, uncommon lesions of the head and neck region and even more of the thorax, abdomen and pelvis, arising in an endemic area in northern Italy.(More)
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