OBJECTIVE To determine the role of computed tomography scan in children presenting to emergency department with symptoms and signs of suspected acute bacterial meningitis. METHODS The retrospective analysis was done on children who were admitted through the Emergency Department at Aga Khan University Hospital, Karachi, from September 2009 to September 2011 with the diagnosis of acute bacteria...

Objectives: Presence/absence of cervical lymph node metastasis plays a critical role in prognosis and survival of patients with oral squamous cell carcinoma (SCC). This study was designed to assess the diagnostic accuracy of computed tomography (CT) scan for detection of cervical lymph node metastasis in oral SCC in comparison with histopathological analysis after neck dissection Methods: In...

A 63-year old patient with acute abdominal pain, nausea and temperature (38.8°C) was admitted to emergency; 4/4 haemocultures were positive for Streptococcus pyogenes. Computed tomography scan revealed a suspicion of an abdominal aorta infection with infiltration of surrounding tissue (Fig. 1). Diagnosis was confirmed by fluorodeoxyglucose (FDG)-positron emission tomography (PET)–CT scan (Fig. 2).

Computed tomography (CT) is an important imaging modality. Physicians, surgeons, and oncologists prefer CT scan for diagnosis of lung cancer. However, some nodules are missed in CT scan. Computer aided diagnosis methods are useful for radiologists for detection of these nodules and early diagnosis of lung cancer. Early detection of malignant nodule is helpful for treatment. Computer aided diagn...

-This study demonstrated techniques for visualization of detailed brain anatomy with two dimensional ultrasound. The use of large aperture focused ultrasound transceivers appears to be essential for displaying the outlines of thalamus, internal capsule and substantial nigra in addition to those of the ventricles. The ability to vary grey scale and edge enhancement using either linear or logarit...

The purpose of this work is to evaluate the surface roughness (Ra) of the customised bone implant fabricated by Selective Laser Sintering (SLS). Computer Tomography (CT) scan data of the femur bone was taken for the study. The scan data was converted to .stl file format. Taguchi’s design of experiments was conducted to fabricate the customised implants using SLS. The quantitative measures of su...

We present a model-driven approach to the segmentation of nasal cavity and paranasal sinus boundaries. Based on computed tomography data of a patients head, our approach aims to extract the border that separates the structures of interest from the rest of the head. This three-dimensional region information is useful in many clinical applications, e.g. diagnosis, surgical simulation, surgical pl...