| breast ultrasound | <investigation, radiology> A test which uses ultrasonic waves to scan the breast. Used to evaluate fibrocystic breast disease, breast implants or breast masses. (27 Sep 1997) |
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| ultrasound of the breast | <investigation> A test which uses ultrasonic waves to scan the breast. Used to evaluate fibrocystic breast disease, breast implants or breast masses. (27 Sep 1997) |
| radiography, interventional | Diagnostic and therapeutic procedures that are invasive or surgical in nature, and require the expertise of a specially trained radiologist. In general, they are more invasive than diagnostic imaging but less invasive than major surgery. They often involve catheterization, fluoroscopy, or computed tomography. Some examples include percutaneous transhepatic cholangiography, percutaneous transthoracic biopsy, balloon angioplasty, and arterial embolization. (12 Dec 1998) |
| radiology, interventional | Subspeciality of radiology that combines organ system radiography, catheter techniques and sectional imaging. (12 Dec 1998) |
| interventional angiography | <cardiology, surgery> The surgical repair of a blood vessel. A balloon angioplasty is a noninvasive procedure where a balloon-tipped catheter is introduced into a diseased blood vessel. As the balloon is inflated, the vessel opens further allowing for improved flow of blood. (12 Nov 1997) |
| interventional radiology | The clinical subspecialty that uses fluoroscopy, CT, and ultrasound to guide percutaneous procedures such as performing biopsies, draining fluids, inserting catheters, or dilating or stenting narrowed ducts or vessels. (05 Mar 2000) |
| ultrasonography, interventional | Ultrasonography using invasive or surgical procedures. Its widest application is intravascular ultrasound imaging but it is useful also in urology and intra-abdominal conditions. (12 Dec 1998) |
| aortic ultrasound | An ultrasound examination of the aorta to determine its size, shape and course. The diagnosis of abdominal aortic aneurysm can be made using this test. (27 Sep 1997) |
| carotid ultrasound | <investigation> A noninvasive test which uses high-frequency sounds waves to determine extent of blood flow through the carotid arteries in the neck. Used in the evaluation of stoke and TIA symptoms. (08 Jan 1998) |
| cysts by ultrasound | <radiology> Defined by three properties (all must be present): anechoic lumen, sharp posterior margin, posterior acoustic enhancement (12 Dec 1998) |
| diagnostic ultrasound | The use of ultrasound to obtain images for medical diagnostic purposes, employing frequencies ranging from 1.6 to about 10 MHz. (05 Mar 2000) |
| obstetric ultrasound | Use of diagnostic ultrasound during pregnancy. (05 Mar 2000) |
| transvaginal ultrasound | Sound waves sent out by a probe inserted in the vagina. The waves bounce off the ovaries, and a computer uses the echoes to create a picture called a sonogram. Also called tvs. (12 Dec 1998) |
| ultrasound | <investigation> A type of imaging technique which uses high-frequency sound waves. This is highly operator-dependent and is thought to be useful in diagnosis but not particularly accurate in the assessment of tumour response. For the latter, CT or MR imaging are more accurate. (16 Dec 1997) |
| ultrasound cardiography | Echocardiography is a diagnostic test which uses ultrasound waves to make images of the heart chambers, valves and surrounding structures. It can measure cardiac output and is a sensitive test for inflammation around the heart (pericarditis). It can also be used to detect abnormal anatomy or infections of the heart valves. (12 Dec 1998) |