In this article, 434 cases examined by computed tomography for the head are reported and the method of head scanning introduced.

本文报告了头部计算机体层摄影检查434例。介绍了头部CT扫描方法。

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Objective To probe the methods and clinical value of transrectal ultrasound (TRUS) with head scanning probe in detecting upper rectal carcinoma.

目的探讨端扫式直肠超声对高位直肠癌患者进行术前腔内检查（TRUS）的方法与临床价值。

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The Sensor Bar contains an array of sensors across the full width of the scanning head.

传感条包含了一组传感器阵列，跨越扫描头的整个宽度。

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Now they have something that works like a flatbed document scanner, with a scanning head containing either six or 12 light-emitting diodes, each emitting light of a specific wavelength between 350 nanometres (ultraviolet) and 800 nanometres (infra-red).

ECONOMIST: Monitor

Patients with subretinal light sensitive implants, however, perceive the shapes of objects naturally from the first day of implantation onwards without reorganisation of the spatial assignments of electrodes by an image processor and without scanning movements of the head.

FORBES: Second Test Of Retinal Implant Shows Restored Vision To The Blind

On the stunted commercial street in town, there were three places still open for business, one of them the diner, and I ate there once and stuck my head in the door two or three times, scanning the booths.

NEWYORKER: Midnight in Dostoevsky