Abstract
Introduction: Colour duplex ultrasound (CDU)-guided sclerotherapy is a valuable modality for treating
peripheral vascular malformations (PVMs). Patients and Methods: Between April 1996 and October 1998, 75 patients (age 5–65 years) with PVMs were
subjected to CDU. Sclerotherapy was subsequently performed on 40 patients, without
sedation, using 3% sodium tetradecyl sulfate, with mean follow-up of 4 years. Results: CDU of the 33 high-flow lesions (HFLs) revealed direct arteriovenous (AV) communicating
channels with very high forward diastolic flow in seven lesions (arteriovenous fistulas,
AVFs), but not in the other 25 lesions (non-AVF). One was a mixed lesion picked up
by CDU. Sixteen HFLs were subjected to sclerotherapy; 13 (81.25%) regressed. CDU of
the 42 low-flow lesions (LFLs) helped categorize them into Type 1, where no supplying
arteries could be seen (12 lesions), and Type 2, where supplying arteries were seen
(30 lesions). Type 2 lesions could be further subcategorized based on the spectral
trace of their supplying arteries: Type 2a, high-resistance flow (25 lesions); and
Type 2b, low-resistance flow with a small forward diastolic flow (5 lesions). Twenty-four
LFLs were subjected to sclerotherapy; 20 (83.3%) regressed. Conclusion: CDU findings correlated well with the clinical appearances of PVMs, and helped to
further subcategorize these lesions based on flow. Significant differences in the
Doppler flowmetry parameters of the supplying arteries seen in the HFLs and LFLs have
enabled us to suggest values for differentiating between them. CDU was also found
to be valuable in the follow-up of these lesions.
Keywords
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Article info
Publication history
Accepted:
March 25,
2002
Received:
February 10,
2002
Footnotes
☆Presented at the United Kingdom Radiological Congress 2001, Wembley Park, London, UK, May 2001.
Identification
Copyright
© 2003 Elsevier Science Inc. Published by Elsevier Inc. All rights reserved.
