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Evaluation of arteriovenous fistulas and pseudoaneurysms in renal allografts following percutaneous needle biopsy. Color‐coded Doppler sonography versus duplex Doppler sonography.
Author(s) -
Hübsch P J,
Mostbeck G,
Barton P P,
Gritzmann N,
Fruehwald F X,
Schurawitzki H,
Kovarik J
Publication year - 1990
Publication title -
journal of ultrasound in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 91
eISSN - 1550-9613
pISSN - 0278-4297
DOI - 10.7863/jum.1990.9.2.95
Subject(s) - medicine , radiology , pseudoaneurysm , arteriovenous fistula , digital subtraction angiography , percutaneous , renal artery , renal sinus , angiography , biopsy , duplex ultrasonography , embolization , lesion , kidney , surgery , aneurysm , ultrasonography , nephrectomy
One hundred one patients with renal allografts were studied by two independent observers using duplex Doppler sonography (DDS) and color‐coded Doppler sonography (CCDS). In all patients, single or multiple percutaneous needle biopsies of the transplant had been performed 1 to 30 days before. In 6 patients CCDS following the biopsy demonstrated an area of combined red and blue color‐coded blood flow within the renal parenchyma (n = 5) or within the sinus (n = 1); the Doppler waveform was abnormal in these areas with signals above and below the zero line indicating turbulent blood flow. Consecutive intraarterial digital subtraction angiography (DSA) revealed the presence of an arteriovenous fistula (n = 4) or of a pseudoaneurysm (n = 2). In one patient, gross hematuria with obstruction of the bladder occurred as a complication of a pseudoaneurysm within the renal sinus; the bleeding could not be stopped by embolization of the lesion and the kidney had to be removed. DDS demonstrated the lesion in only one of the six patients. Thus, CCDS is the method of choice for noninvasive detection of vascular lesions due to percutaneous biopsy.