title: Expanded applications of CT. Helical scanning in five common acute conditions.
abstract: Helical CT has become a valuable imaging tool for detection of pulmonary embolism, deep venous thrombosis, ureteral colic, acute small-bowel obstruction, and acute appendicitis. Generally, helical CT has good sensitivity and specificity values, and scans can be performed more quickly than previous gold standard diagnostic examinations for the conditions mentioned. In some cases, helical CT can also identify other findings that may be responsible for a patient's symptoms. One notable disadvantage of helical CT is the charge for the procedure, which in some circumstances can be considerably more costly than diagnostic examinations preferred previously. However, because helical CT can often obviate the need for other tests--and may consequently reduce hospital stays--this technology may have the ability to reduce overall expenditures. Cost of helical CT is therefore a multifaceted issue and requires further study before conclusions can be drawn.
authors: Division of Diagnostic Radiology, Department of Radiology, Scott and White Memorial Hospital and Clinic, 2401 S 31st St, Temple, TX 76508, USA. mnipper@swmail.sw.org
authors: M L
authors: ML
authors: Nipper
authors: L K
authors: LK
authors: Jacobson
mesh_terms: D000208:Acute Disease; D001064:Appendicitis / Q000000981:diagnostic imaging*; D017721:Hospital Costs / Q000706:statistics & numerical data; D006801:Humans; D007415:Intestinal Obstruction / Q000000981:diagnostic imaging*; D007421:Intestine, Small; D007902:Length of Stay / Q000191:economics / Q000706:statistics & numerical data; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013997:Time Factors; D014057:Tomography, X-Ray Computed / Q000191:economics / Q000379:methods* / Q000592:standards; D014514:Ureteral Calculi / Q000000981:diagnostic imaging*; D020246:Venous Thrombosis / Q000000981:diagnostic imaging*