| PVR | peripheral vascular resistance; perspective volume rendering; poliovirus receptor; postvoiding resid... |
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| VTR | variable tandem repeats; videotape recording; vesicular transport system |
| camera posterior bulbi | The ringlike space, filled with aqueous humor, between the iris/pupil anteriorly and the lens and ciliary body posteriorly. Synonym: camera posterior bulbi, camera oculi minor, camera oculi posterior. (05 Mar 2000) |
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| camera vitrea bulbi | The large space between the lens and the retina; it is filled with the vitreous body. Synonym: camera vitrea bulbi, vitreous camera, vitreous chamber of eye. (05 Mar 2000) |
| gamma camera | Any one of several scintigraphic cameras that records simultaneously counts from the entire operative field of view. Synonym: scintillation camera. (05 Mar 2000) |
| vitreous camera | The large space between the lens and the retina; it is filled with the vitreous body. Synonym: camera vitrea bulbi, vitreous camera, vitreous chamber of eye. (05 Mar 2000) |
| retinal camera | An instrument for photographing the ocular fundus. (05 Mar 2000) |
| multiformat camera | Photographic or laser printer for recording a variable number of video images on a sheet of film, as in computed tomography or ultrasound. (05 Mar 2000) |
| scintillation camera | Any one of several scintigraphic cameras that records simultaneously counts from the entire operative field of view. Synonym: scintillation camera. (05 Mar 2000) |