[Delineation of calf deep veins using 2D-TOF MR venography without contrast media: efficacy of tourniquet and leg-warming].
We evaluated the imaging quality of 2D-TOF MR venography of the lower part of the leg and the efficacy of a tourniquet around the knee and leg-warming. In 8 healthy volunteers, MR venography was carried out under the following four conditions: (a) usual MR venography, (b) MR venography with tourniquet around the knee, (c) MR venography after leg-warming and (d) MR venography with tourniquet after leg-warming. Our results suggested that MR venography with tourniquet after leg-warming is best suited for imaging the veins of the leg. We also compared the diagnostic image quality of MR venography and conventional contrast venography in 7 patients with varices. The results showed no significant differences between the two methods. We conclude that MR venography with tourniquet after leg-warming is a technique that provides reliable information about the veins of the leg.
Nagayoshi
K
K
Department of Radiology, Hiroshima Prefectural Hiroshima Hospital.
Okada
M
M
Monzen
Y
Y
Kimura
S
S
Hamanaka
Y
Y
Ochi
M
M
Hayashi
K
K
D000328:Adult; D005260:Female; D006358:Hot Temperature; D006801:Humans; D007866:Leg / Q000098:blood supply*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D010690:Phlebography; D014111:Tourniquets; D014680:Veins / Q000033:anatomy & histology