Pries A R, Gaehtgens P
Department of Physiology, Freie Universität Berlin, Federal Republic of Germany.
Microvasc Res. 1987 Sep;34(2):260-7. doi: 10.1016/0026-2862(87)90060-4.
A modular video device for the measurement of vessel diameter by image shearing is presented. The shearing line may be positioned anywhere and at any angle within the video field. The device produces a standard video signal so that the resulting sheared image can be viewed on any CCTV monitor.