Telltale signs of peripheral neurogenic tumors on magnetic resonance imaging.

Peripheral nerve sheath tumors are categorized into benign and malignant forms, comprising of neurofibroma and schwannoma in the benign category and malignant peripheral nerve sheath tumors in the malignant category. Magnetic resonance imaging plays an important role in the diagnosis of these lesions. The various imaging features and signs that help to identify and characterize a nerve sheath tumor are, distribution of the tumor along a major nerve, an entering or exiting nerve sign, target sign, a fascicular sign and a split-fat sign.

Comparative study of dentascan and radiography for radiological evaluation of impacted teeth.

Introduction: Impacted teeth present a very common problem in dentistry due to the variable numbers of problems they cause. They have previously been imaged by radiography which is very inaccurate. Dental CT is an upcoming modality which very accurately images the teeth.

Doppler evaluation of ocular vessels in patients with primary open angle glaucoma.

Purpose: To assess ocular blood flow in patients with primary open angle glaucoma (POAG) with or without progressive visual field loss in comparison with controls.

Methods: Color Doppler imaging was performed on 78 eyes with established POAG (25 with progressive visual field loss and 53 with stable visual field) and 78 control eyes. Peak systolic velocity, end diastolic velocity (EDV), and resistance index (RI) were measured in the ophthalmic (OA), central-retinal, and medial and lateral posterior ciliary arteries.

Quantitative and qualitative bowel analysis using mannitol, water and iodine-based endoluminal contrast agent on 64-row detector CT.

Objective: To assess the performance of mannitol as a luminal contrast as compared to water and positive contrast in evaluation of bowel on multidetector computed tomography (MDCT).

Materials And Methods: Three hundred patients were randomly selected for this study and were divided equally into three groups. Each subject received 1500 ml of oral contrast.

Computed radiography image artifacts revisited.

Objective: Computed radiography (CR) has provided a ready cost-effective transition from screen film to digital radiography and a convenient entrance to PACS. This article revisits artifacts encountered in CR systems. These artifacts may obscure abnormalities, mimic a clinical entity, or hamper image quality.

Bifid mandibular condyles: report of four cases.

Unlabelled: Anatomic variations in the condylar morphology, like bifid mandibular condyles, are a relatively uncommon anomaly. We report four cases (two in patients and two in archived specimens) of bifid mandibular condyles with emphasis on their aetiopathogenesis and radiographic features. A case of bifid mandibular condyles in a patient with rheumatoid arthritis is reported which, to the best of our knowledge, is the first reported case in the literature.