Tane S, Sujino T, Tuchiya M, Ito H, Hashimoto M, Kimura Y
Department of Ophthalmology, St. Marianna University School of Medicine, Kanagawa-ken, Japan.
Nippon Ganka Gakkai Zasshi. 1995 Nov;99(11):1254-8.
Micro-imaging displays of the anterior segment of the eye, such as of the anterior chamber angle, iris, ciliary body, ciliary zonule of Zinn, and anterior surface of the crystalline lens, were obtained in human eyes in vivo by means of a recently developed, high-frequency, high-resolution ultrasonic diagnostic unit (30 MHz). Much clearer displays than conventional ultrasonic imaging displays (5-15 MHz) were obtained, showing improved resolution, and greater morphologic diagnostic information was provided. Displays considered useful for making measurements were also provided. The subjects were 20 normal volunteers (35 eyes), 36 patients with glaucoma (58 eyes), 6 patients with uveal diseases (6 eyes), and 28 patients with pseudophakia (32 eyes). The equipment used was a model UX-02 ultrasonic diagnostic unit (RION), and the transducer was the three-element annular array type. The frequency was 30 MHz, the resolution was below 50 microns, and tissue penetration was 6 mm. This method enabled close ultrasound biomicroscopic imaging observations of details of the anterior and posterior chambers of the eyes in vivo and was also useful for clinical diagnosis and elucidation of the cause of glaucoma of various types. It also for the first time enabled evaluation of the position of fixation of an intraocular lens loop in the pseudophakic eyes containing an intraocular lens.
利用最近研发的高频、高分辨率超声诊断仪（30兆赫），对人眼活体眼前段进行微观成像显示，如前房角、虹膜、睫状体、晶状体悬韧带及晶状体前表面。与传统超声成像显示（5 - 15兆赫）相比，获得了更清晰的图像，分辨率提高，提供了更多形态学诊断信息，还提供了对测量有用的显示。研究对象包括20名正常志愿者（35只眼）、36例青光眼患者（58只眼）、6例葡萄膜疾病患者（6只眼）以及28例人工晶状体植入患者（32只眼）。使用的设备是UX - 02型超声诊断仪（理音），换能器为三元环形阵列式。频率为30兆赫，分辨率低于50微米，组织穿透深度为6毫米。该方法能够在活体状态下对眼的前房和后房细节进行近距离超声生物显微镜成像观察，对各类青光眼的临床诊断及病因阐明也很有用。它还首次能够对含人工晶状体的人工晶状体眼中人工晶状体袢的固定位置进行评估。
