Differences between genders in colorectal morphology on CT colonography using a quantitative approach: a pilot study.

Purpose: To explore quantitative differences between genders in morphologic colonic metrics and determine metric reproducibility.

Methods: Quantitative colonic metrics from 20 male and 20 female CTC datasets were evaluated twice by two readers; all exams were performed after incomplete optical colonoscopy. Intra-/inter-reader reliability was measured with intraclass correlation coefficient (ICC) and concordance correlation coefficient (CCC).

Detailed quantitative assessment of colonic morphology at CT colonography using novel software: a feasibility and reproducibility study.

The aim of this study was to evaluate feasibility and reproducibility of quantitative assessment of colonic morphology on CT colonography (CTC). CTC datasets from 60 patients with optimal colonic distension were assessed using prototype software. Metrics potentially associated with poor endoscopic performance were calculated for the total colon and each segment including: length, volume, tortuosity (number of high curvature points <90°), and compactness (volume of box containing centerline divided by centerline length).

Impact of hysterectomy on three-dimensional rectosigmoid morphology and endoscopy performance: a pilot study.

Objectives: Assess differences in three-dimensional colonic metrics on CTC in women with or without hysterectomy following incomplete endoscopy to determine if there is a correlation between colonic morphology and incomplete colonoscopy after hysterectomy.

Methods: Quantitative rectosigmoid metrics were derived from CTC datasets of 37 women with hysterectomy and 36 women without hysterectomy who underwent CTC for incomplete endoscopy. Evaluated metrics included colonic length, volume, tortuosity, and compactness and sigmoid apex height relative to the lumbosacral junction.

US-guided Biopsy of Neck Lesions: The Head and Neck Neuroradiologist's Perspective.

Ultrasonographically (US) guided percutaneous biopsy of a neck lesion is a cost-effective, safe, and diagnostically effective procedure without radiation exposure. The benefit of real-time visualization of the needle location allows for instantaneous maneuvering of the needle trajectory for safe and accurate tissue sampling with short procedural time. Effective US-guided biopsy requires technical experience, strong clinical acumen, and skillful biopsy technique.

The accuracy of mobile teleradiology in the evaluation of chest X-rays.

We assessed the diagnostic accuracy of digital photographs of plain film chest X-rays (CXRs) obtained using a mobile phone. The study was a randomized, non-inferiority trial, in which physical plain film CXRs viewed on a light box were compared with digital photographs of plain film CXRs. CXRs were selected from a database of radiology studies to show common pathologies found in Botswana associated with pneumonia, lung carcinoma, tuberculosis, pneumothorax and interstitial disease, as well as normal findings.