![]() The transducer is a small hand-held device that resembles a microphone. Ultrasound machines consist of a computer console, video monitor and an attached transducer. The x-ray machine and a detector suspended over the exam table produce the video. Doctors use it to watch and guide procedures. Fluoroscopy converts x-rays into video images. This exam typically uses a radiographic table, one or two x-ray tubes, and a video monitor. ![]() The technologist will be able to hear and talk to you using a speaker and microphone. This is where the technologist operates the scanner and monitors your exam in direct visual contact. The computer workstation that processes the imaging information is in a separate control room. ![]() Rotating around you, the x-ray tube and electronic x-ray detectors are located opposite each other in a ring, called a gantry. You will lie on a narrow table that slides in and out of this short tunnel. The CT scanner is typically a large, donut-shaped machine with a short tunnel in the center. A vacuum-assisted device (VAD), which uses a vacuum to aid in obtaining larger pieces of tissue.ĭoctors perform needle biopsies with the guidance of computed tomography (CT), fluoroscopy, ultrasound, or MRI.A core needle, also called an automatic, spring-loaded needle, which consists of an inner needle connected to a trough, or shallow receptacle, covered by a sheath and attached to a spring-loaded mechanism. ![]()
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