Dynamic isotope aortoiliac assessment. Clinical, doppler, and arteriographic correlation
S. N. Carson, G. Hunter, H. N. Wong and P. A. Farrer
In the presence of multiple tandem arteriosclerotic stenoses of the distal
aorta, iliac, and lower extremity arteries, it may be difficult to
ascertain which lesions are clinically and surgically important. Usually
the history, physical examination, and arteriogram will resolve this issue.
However, a recent report has stated that the rapid transit time of isotope
from the distal aorta to the femoral arteries may be helpful. The relevance
of this technique in surgical candidates with different clinical stages of
vascular disease has yet to be demonstrated. We compared the use of this
technique in surgical candidates with their clinical state and assessment
of vascular disease by standard angiographic and directional transcutaneous
Doppler techniques. Only modest benefit from the isotope transit was found,
particularly when compared with the patient's clinical status of
asymptomatic, claudicating, or limb salvage categories. We conclude that
isotope transit times as currently measured are not as clinically important
as previously reported. With further development, some trends may prove to
be useful.
