Mean velocity and peak systolic velocity can help determine ischaemic and non-ischaemic priapism

Aim To determine the threshold waveform characteristics at Doppler ultrasound (DUS) to differentiate between ischaemic and non-ischaemic priapism. Materials and methods Fifty-two patients were categorised into “ischaemic” and “non-ischaemic” types based on clinical and blood-gas findings: 10 patient...

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Bibliographic Details
Published in:Clinical radiology 2017-07, Vol.72 (7), p.611.e9-611.e16
Main Authors: von Stempel, C, Zacharakis, E, Allen, C, Ramachandran, N, Walkden, M, Minhas, S, Muneer, A, Ralph, D, Freeman, A, Kirkham, A
Format: Article
Language:English
Subjects:
Blood Flow Velocity
Humans
Ischemia - complications
Male
Penis - blood supply
Priapism - diagnostic imaging
Priapism - etiology
Priapism - physiopathology
Radiology
Retrospective Studies
Systole
Ultrasonography, Doppler
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Summary:Aim To determine the threshold waveform characteristics at Doppler ultrasound (DUS) to differentiate between ischaemic and non-ischaemic priapism. Materials and methods Fifty-two patients were categorised into “ischaemic” and “non-ischaemic” types based on clinical and blood-gas findings: 10 patients with non-ischaemic priapism; 20 with ischaemic priapism before surgical shunt placement and 22 with ischaemic priapism after surgical shunt placement. DUS traces were analysed: peak systolic velocity (PSV) and mean velocity (MV) were calculated. Histological samples were obtained at the time of surgery. Three clinical outcome groups were defined: (1) normal, (2) regular use of pharmacostimulation, and (3) refractory dysfunction/penile implant. Results All non-ischaemic priapism cases had a PSV >50 cm/s and all but one had an MV of >6.5 cm/s. In pre-surgery ischaemic cases, all men had a PSV
ISSN:0009-9260
1365-229X
DOI:10.1016/j.crad.2017.02.021