Materials and Methoqs Thin section CT of a left human cadaveric temporal bone was performed using multiple scan planes (axial, coronal, sagittal) at 1.5 mm slice thickness, 0.25 mm pixel size with an edge enhancement 2D algorithm. CT data was converted to toggle point format based upon a threshold value of 200 obtained from prior experimentation with a CT phantom (unpublished data). Selective L...

OBJECTIVE To characterize the appearance of the normal vestibular aqueduct on coronal computed tomography (CT). DESIGN Retrospective evaluation of routine CT images of the temporal bones. SETTING Private tertiary care center. PATIENTS Twenty-four children and young adults (14 females and 10 males), aged 2 to 24 years (average age, 10 years). MAIN OUTCOMES MEASURES Axial CT images were e...

Fig, 1,-25-year-old man with parapharyngeal angiofibroma. A, Unenhanced axial CT scan shows a mass (arrows) in parapharyngeal space, with anterior displacement and splaying of pterygoid plates. B, Enhanced coronal CT scan shows an enhancing left-sided parapharyngeal mass (arrows) displacing pharynx toward right. C, Angiogram of left common carotid artery shows a hypervascular mass (arrows) supp...

Introduction: 99mTc-MIBI has been proposed for use as an imaging agent for various tumors, including breast cancer, lung cancer, lymphomas, melanomas and brain neoplastic lesions. Brain tumors are very common and radiotherapy being major part of treatment following surgery. After radiotherapy, deteriorating clinical status can be due to either radiation necrosis or recurrent tumor. Comput...

OBJECTIVE To evaluate the current practice in requesting and performing paranasal sinuses CT scan for patients scheduled for endoscopic sinus surgery, and to describe the current hospitals practice in performing these scans. METHODS This cross-sectional questionnaire study was conducted in the King Hussein Medical Center, Amman, Jordan between April and May 2010. Three forms were designed to ...

Figure 1. Top, An abdominal CT scan with contrast enhancement demonstrates a liver abscess at the lateral segment of the left hepatic lobe, with a linear fish bone (arrow) visible within the abscess. Bottom, A non–contrast-enhanced CT scan in oblique coronal reformation demonstrated that the fish bone was retained in the liver without any sequelae. prolonged courses of oral artesunate to our pa...

ct image quality has been affected by many factors such as kvp, ma, exposure time, alogorithm and section thickness. gantry tilt has the main role in visualization of the temporal bone anatomic structures. in this study, we tried to optimize these factors to determine the best gantry tilt. this study was performed on the human skull phantom and then extended to 15 patients. the phantom was made...

The number of screening examinations of the sinuses performed with CT has markedly increased owing to the widespread and increasing use of endoscopic sinonasal surgery. We reviewed scans from 500 patients who had screening CT examinations of the sinuses for preendoscopic evaluation of inflammatory sinonasal disease to better define an optimal imaging protocol. Three aspects of direct coronal im...

A 62-year-old man with chronic myelomonocytic leukaemia presented increasing dyspnoea one month after a pericardiocentesis. Chest MDCT scan (Figs. 1 and 2) showed left ventricle pouching of contrast material, suggestive of pseudoaneurysm (probably iatrogenic), confirmed with trans-thoracic echo-cardiogram (Video 1). Surgical repair successfully closed the ventricle-pseudoa-neurysm connection. F...