title: [Diagnosis of deep vein thrombosis using multi-detector helical CT].
abstract: OBJECTIVE
  To evaluate the usefulness of multi-detector helical CT (MDHCT) with contrast medium in the diagnosis of deep vein thrombosis (DVT).
  
  
  METHODS
  The bilateral veins of the dorsal pedis in 45 patients (12 men, 33 women; average age, 64 years) under clinical suspicion of DVT were first punctured using 22-G needles. Then CT scanning from the level of the foot to the inferior vena cava was started 20 sec after the initial injection of 200 mL of dilute contrast medium (50 mL nonionic iodinated contrast medium of 300 mgI/mL and 150 mL saline) at a rate of 5 mL/sec.
  
  
  RESULTS
  Two patients were excluded because of unsuccessful venous puncture. The average scanning time in 43 patients was 38.5 +/- 7.9 seconds. Images of veins from the foot to the inferior vena cava were clearly demonstrated in each case. MDHCT showed DVT in 32 cases and patent deep vein in 11 cases. Simultaneous venography of the lower extremity in 18 patients clearly visualized DVT at the same level detected by contrast MDHCT.
  
  
  CONCLUSIONS
  MDHCT for the diangosis of DVT has the advantages of wider scanning range, shorter scanning time, and finer Z-axis resolution than the other diagnostic modalities.
authors.affiliation: Department of Radiology, Wakayama Medical University.
authors.forename: Masashi
authors.initials: M
authors.lastname: Kimura
authors.forename: Hiroki
authors.initials: H
authors.lastname: Minamiguchi
authors.forename: Shinya
authors.initials: S
authors.lastname: Sahara
authors.forename: Katsuyuki
authors.initials: K
authors.lastname: Yamada
authors.forename: Motoki
authors.initials: M
authors.lastname: Nakai
authors.forename: Hirohiko
authors.initials: H
authors.lastname: Tanihata
authors.forename: Kazushi
authors.initials: K
authors.lastname: Kishi
authors.forename: Masaki
authors.initials: M
authors.lastname: Terada
authors.forename: Yasukazu
authors.initials: Y
authors.lastname: Shioyama
authors.forename: Morio
authors.initials: M
authors.lastname: Sato
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003287:Contrast Media; D005260:Female; D006801:Humans; D007866:Leg / Q000098:blood supply*; D008297:Male; D008875:Middle Aged; D010690:Phlebography / Q000379:methods*; D011856:Radiographic Image Enhancement / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods*; D020246:Venous Thrombosis / Q000000981:diagnostic imaging*
chemical_list: D003287:Contrast Media