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K O N Y A A N D W R I G H T vol. 3, No. 10, October 1996
ture placed around the femoral artery and catheter.
Placement of a loop of suture around a segment of ves- sel and catheter is similar to spasm in the iliac and femoral arteries in that it often restricts advancement and manipulation of the catheter. Even if after the intro-
ducer system is in place a loop of suture is needed to
prevent bleeding at the puncture site, the sheath pre-
vents the ligature from inhibiting catheter movement .
Thus, the introducer system eliminates bleeding at the puncture site wi thout restricting catheter manipula-
tion. In Part III, there was little difference in the fluoros-
copy time needed for catheterization of the lst-order branches of the aorta with either a 2- or 3-F catheter. However, the overall t ime for manipulations wi th the
3-F catheter was shorter because most a t tempts at
superselective p lacement of the 3-F catheter had to be abandoned after a short period because of catheter-
induced spasm; all superselective p lacements of the
2-F catheter were successful.
In summary, the introducer system described in this
repor t is inexpensive and easy to construct and use. The system facilitates the use of 2-F angiographic cath-
eters and thus improves the success of selective and superselective arterial catheterization in the rabbit. The
safety of the catheterization procedure is also improved because use of the introducer often decreases the time required for the desired superselective catheter place-
ment. This device makes possible the safe exchange of catheters and further shortens the time needed for the manipulation. All of these factors effectively reduce the
radiation exposure to personnel.
ACKNOWLEDGMENTS
The authors acknowledge Raquel Collins and Irene
Szwarc for their exper t technical assistance.
REFERENCES
1. Klimek E, Fournier D, Montanera W, Glen J, Sharrna R, Terbrugge K. Selective transfemoral cerebral angiography on the rabbit. J Neuroradiol 1990;17:20-25.
2. Phillips DA, Davis MA, Fisher M. Selective embolization and clot disso- lution with tPA in the internal carotid artery circulation of the rabbit. Am J Neuroradiol 1988;9:899-902.
3. Adams DF, Olin TB, Redman HC. Catheterization of arteries in the rab- bit. Radiology 1965;84:531-535.
4. Hillman B, Rumbaugh C. One-catheter technique for magnification ca- rotid and vertebral angiography in the rabbit. Invest Radiol 1977;12:373-375.
5. Young S, Hollenberg NK. Selective catheterization for magnification an- giography of internal spermatic and proper hepatic arteries in rabbits. In- vest Radiol 1977; 12:256-258.
6. Lindell SE, Olin T. Catheterization of the renal arteries in dogs and cats. Acta Physiol Scand 1957;39:73-82.
A n n o u n c e m e n t s
The University of Pennsylvania Medical Center, Philadelphia, PA, is sponsoring an A d v a n c e d B o d y MR Vis i t ing F e l l o w s h i p f o r P h y s i c i a n s . The 1-week mini fellowship is designed to cover the selection of coils and pulse se-
quences and the interpretation of images of the pelvis, abdomen, and breast. Specific topics to be discussed include imaging of the prostate, bladder, the female genital tract, the rectum, and the testes. State-of-the-art techniques will
be introduced. The fee is $1,600.00, and 40 hours of AMA Category I credit is available. The course director is
Mitchell D. Schnall, MD, PhD. For more information, contact Melissa Zajdel, Hospital of the University of Pennsylvania, 3400 Spruce St, 1
Silverstein Building, Philadelphia, PA 19104; phone (215)662-7825, fax (215) 349-5925.
The University of Pennsylvania, Depar tment of Radiology, is sponsoring a conference entitled C r o s s - s e c t i o n a l I m - aging. This 5-day seminar is designed for the practicing radiologist w h o has a pr imary interest in cross-sectional im- aging. The most recent advances in US, CT, MR imaging and review approaches to optimal utilization of these imag-
ing techniques will be discussed. The conference will be held at the Hyatt Regency St John Resort, U.S. Virgin Is- lands, February 24-28, 1997. The fee is $645 for radiologists and $350 for residents, fellows, and sonographers. There will be 22 hours of Category I credit available. The course director is Beverly Coleman, MD.
For more information, contact Janice Ford, Hospital of the University of Pennsylvania, 3400 Spruce St, 1
Silverstein Building, Philadelphia, PA 19104; phone (215)662-7825, fax (215)349-5925.
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