INTRODUCTION This article reviews the various computed tomography (CT) appearances of hepatic metastases from colorectal primaries and assesses the frequency of occurrence of the various patterns. MATERIALS AND METHODS This is a retrospective study of the CT appearances of histologically proven colorectal hepatic metastases in a group of 52 patients who had undergone surgical hepatic resectio...

One limitation of endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is the size of the available needles, frequently yielding only cells for cytological examination. The aim of this pilot study was to evaluate the efficacy and safety of newly developed needle forceps to obtain tissue for the histological diagnosis of enlarged mediastinal lymph nodes. Patients with enl...

cannula, a curette needle, and a hollow bevelled needle with an inner removable stylet. The shaving action of the cannula over the curette after it has engaged the pleura is the recommended technique of pleural biopsy. The Abrams' needle consists of two main concentric tubes:3 the outer hollow trocar has a deep notch proximal to the tip and the cutting action of the inner hollow tube as it is a...

Moyamoya disease is commonly diagnosed in children, and requires various vascular reconstruction to improve symptoms. Therefore, scar widening and hair loss after craniotomy, which sometimes occurs in this disease, are serious problems for patients. A variety of plastic surgical techniques in scalp have been reported to minimize the scar widening and hair loss. However, any neurosurgical report...

Sir,—The success of regional anaesthesia depends upon accurate placement of local anaesthetic solution in the proximity of nerve trunks [1] without causing sequelae such as neural lesions and damage to blood vessels, tendons, muscles or pleura [2-6]. The classic methods of locating nerves used the production of paraesthesiae with the standard bevel needle. New techniques have been developed whi...

OBJECTIVE Despite the theoretical favourable hemodynamic advantage of end-to-end anastomosis (ETE), femoropopliteal bypasses with distal ETE and end-to-side anastomosis (ETS) have comparable clinical patencies. We therefore studied the effects of different in vivo anastomotic configurations on hemodynamics in geometrically realistic ETE and ETS in vitro flow models to explain this phenomenon. ...

AIM This in vitro study compared the effect of a concave with a straight-bevelled cavity margin on the microleakage of Class V composite resin restorations in primary teeth. MATERIALS AND METHODS Standardised Class V cavity preparations were made in vitro on the buccal (all margins placed in enamel) and on the lingual (margins placed in enamel and cementum) surfaces of 20 sound primary molars...

Title of the Master-Thesis Development of a Surgical Assistant System for Needle Adjustment in Prostate Brachytherapy Author: 1. Examiner: 2. Examiner: Semester: Thomas Lehmann Prof. Dr.-Ing. Bernhard Vondenbusch, Hochschule Furtwangen University Mahdi Tavakoli, PhD, University of Alberta BME 3 Abstract: The prototype of a robotic surgical assistant system was developed for prostate brachythera...

The importance of post-mortem examination is generally accepted, not only for instruction and research, but also for raising the standard of medical practice. Unfortunately, there are many obstacles. In hospital, necropsies are limited by the natural reluctance of many relatives to give the necessary permission. In nursing homes and private houses, they are seldom performed because of the addit...

IN over 100 corneal grafts carried out in this clinic from 1960 to 1966, it was found that the edges of the donor discs varied in shape when observed from the side, and these variations were of sufficient clinical importance to determine the success of the results, the best grafts being those with clean-cut straight edges. These observations led us to seek a procedure whereby the desired shape ...