Evaluation of blood flow in human rectal tumours using a laser Doppler flowmeter.
A TSI laser Doppler flowmeter was used via a rigid sigmoidoscope in 20 consecutive patients with rectal carcinoma. Blood flow and velocity was evaluated at the tumour centre, tumour edge and adjacent normal mucosa; blood flow in the centre of the tumour was significantly higher than in normal mucosa (P = 0.05) and the tumour edge (P = 0.037). Two patients with ulcerated lesions had much lower blood flow in the centre of the ulcerative lesion.
Zografos
G C
GC
Department of Surgery, University Hospital, Nottingham, UK.
Iftikhar
S Y
SY
Harrison
J
J
Morris
D L
DL
D001783:Blood Flow Velocity / Q000502:physiology; D005260:Female; D006801:Humans; D007834:Lasers; D008297:Male; D012004:Rectal Neoplasms / Q000098:blood supply*; D012039:Regional Blood Flow; D012812:Sigmoidoscopy / Q000379:methods