Spiral CT venography of the lower extremities by injection via an arm veinin patients with leg swelling

Citation
S. Yoshida et al., Spiral CT venography of the lower extremities by injection via an arm veinin patients with leg swelling, BR J RADIOL, 74(887), 2001, pp. 1013-1016
Citations number
22
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Radiology ,Nuclear Medicine & Imaging","Medical Research Diagnosis & Treatment
Journal title
BRITISH JOURNAL OF RADIOLOGY
ISSN journal
0007-1285 → ACNP
Volume
74
Issue
887
Year of publication
2001
Pages
1013 - 1016
Database
ISI
SICI code
Abstract
The purpose of this prospective study was to assess the role of spiral CT v enography (CTV) via an arm vein injection in the detection of causes of leg swelling. 42 consecutive patients with leg swelling were studied with indi rect spiral CTV and ultrasound (US). CT parameters were as follows: 5 mm be am collimation 7-10 mm s(-1) table speed; and 2-3 mm reconstruction. Two co nsecutive spiral scans with a 40 s exposure time were performed from the pe lvis to the knee. One bolus of 150 ml non-ionic contrast medium was injecte d at a rate of 3 ml s(-1) by a power injector via an arm vein. The delay ti mes to the first and second scans were 120 s and 180 s, respectively. Spira l CTV demonstrated not only deep vein thrombosis (DVT) (n = 12) but also ot her abnormalities (n = 25). US showed DVT (n = 10) and some other abnormali ties (n = 5). The sensitivity and specificity of spiral CTV for femoropopli teal DVT, as compared with US, were both 100%. Two cases of DVT in the left common-external iliac vein (iliac vein compression syndrome) detected by s piral CTV were not confirmed by US. We were able to evaluate DVT above the knee with this method. Indirect spiral CTV showed promise for the diagnosis of DVT and other soft tissue diseases in patients with leg swelling.