| 释义 |
ˌradio-oˈpaque, a.
Also radiopaque.
[f. radio- 2 + opaque a.]
Impervious to X-rays. So ˌradio-oˈpacity, radioˈpacity, the state or property of being radio-opaque.
1917K. Thoma Oral Roentgenol. iv. iv. 197 Unsanitary concretions, such as salivary..calculi, can be seen on account of their radiopacity. 1926Jrnl. Amer. Med. Assoc. 19 June 1883/1 In the stenotic larynx, the extent of the destruction may be visualized by the introduction of radiopaque substances. 1940Brit. Jrnl. Radiol. XIII. 261/2 To determine the depth of the foreign body, the observer places a radio-opaque guide-mark on the skin..; then he moves the X-ray tube horizontally. 1961Dental Progr. I. 178/2 Radio-opacity of the palatal vault blotted out the apices of the maxillary teeth. 1970H. McLeave Question of Negligence xxvii. 228 They had trundled in a portable X-ray machine..injected a radio-opaque substance into a neck artery. They ran off six plates. 1971G. H. Bourne Ape People vii. 186 A series of cinemagraphs were taken with radiopaque material being injected into different chambers of the heart. 1971Brit. Dental Jrnl. CXXX. 430/1 The localised radiopacity caused by the superimposition of shadows can be very misleading, therefore patients should be instructed to remove their ear-rings before the picture is taken. |