Computerized Tomography-guided Stereotaxic Implantation of Deep Brainstimulating Electrodes

Adjustable computerized stereotaxic brain atlas for transmission and emission tomography.

A computerized brain atlas adjustable to the patient's anatomy would serve serveral purposes. It could be used in stereotaxic surgery. Even more important would be its use in medical imaging to identify various brain structures, such as the basal ganglia and their nuclei, as well as individual cortical gyri. This atlas could be used for additional mapping of nonvisible structures in images obta...

Novel Electrodes for Deep Brain Implantation

Simplified CT-guided stereotaxic biopsy.

A stereotaxic frame worn during computed tomographic (CT) scanning of the head produces landmarks in each section that are used to relate section coordinates to frame coordinates. A small, commercially available, programmable calculator is used to interrelate frame and CT section geometry. The system can be used with any CT scanner that can specify (x,y) coordinates of a pixel, obviating the ne...

Intracystic radiotherapy (90Y) of craniopharyngiomas: CT-guided stereotaxic implantation of indwelling drainage system.

An indwelling drainage system for percutaneous drainage and radiotherapy of cystic craniopharyngiomas is described. The catheter is implanted into the cyst stereotaxically with a computed tomography-guided targeting device and connected to a Rickham reservoir. In addition to the repeated percutaneous evacuation of the cysts, this closed system enables intracavitary radiotherapy (yttrium-90) wit...

Computerized Tomography-Guided Paracentesis: An Effective Alternative to Bedside Paracentesis?

BACKGROUND Ascites remains the most common cause of hospitalization among patients with decompensated cirrhosis. Paracentesis is a relatively safe procedure with low complication rates. Computerized tomography (CT)-guided therapeutic paracentesis could be a safe and effective alternative to unaided or aided (ultrasonogram-guided) bedside paracentesis. In this retrospective study, we aimed to co...