OBJECTIVE To evaluate a quantitative method for individually adjusting the tube current to obtain images with consistent noise in electrocardiogram (ECG)-gated CT cardiac scans. MATERIALS AND METHODS The image noise from timing bolus and cardiac CT scans of 80 patients (Group A) who underwent a 64-row multidetector (MD) CT cardiac examination with patient-independent scan parameters were anal...

Objective To evaluate the effectiveness and efficacy of delayed burr hole surgery in relation to the reduction of postoperative subdural hematoma (SDH) volume in patients with acute SDH. Methods We retrospectively analyzed patients with acute SDH who received delayed burr hole surgery at our institute. Age, sex, Glasgow coma scale, maximal SDH thickness, volume of SDH, midline shifts, hounsfi...

An obese 52-year-old woman underwent mitral valve replacement. On the first day after the operation, she had left-sided weakness. Brain CT showed right side middle cerebral artery infarction, and a hypodense filling defect was noted in the right distal internal carotid artery (figure, A). Region of interest measurement of CT density of the hypodense lesion was –83 Hounsfield units (figure, B), ...

IMAJ • Vol 2 • October 2000 G6PD and Israeli Spotted Fever 781 even with high current. A possible explanation may have to do with impaired conductivity through fat. A lipoma should be sought whenever a huge smooth polyp is identified in the descending colon. Further verification can be obtained with the help of CT, where there is a uniform hypodense polyp. On CT, absorption densities of -80 to ...

Barry Wardell, 2 Chad R. Galley, Anıl Zenginoğlu, Marc Casals, Sam R. Dolan, and Adrian C. Ottewill School of Mathematical Sciences and Complex & Adaptive Systems Laboratory, University College Dublin, Belfield, Dublin 4, Ireland Department of Astronomy, Cornell University, Ithaca, NY 14853, USA Theoretical Astrophysics, California Institute of Technology, Pasadena, California USA Department of...

population aged > 50 years have renal cysts [5]. Most cysts are benign and asymptomatic. A palpable mass, pain from haemorrhage into the cyst, obstructive symptoms and infections are rare presentations. A simple cyst is a fluid-filled, non-neoplastic lesion; most are unilocular, contain straw-coloured fluid, arise from the cortex and are smooth-walled. On CT they are sharply marginated, round, ...