pinhole

n.

针孔，小孔；

复数：pinholes

pinhole camera针孔照相机

Pinhole type imaging device
Pinhole collimation for ultra-high-resolution, small-field-of-view SPECT.
Device and process involving pinhole undercut area
High-resolution SPECT using multi-pinhole collimation
High-resolution SPECT using multi-pinhole collimation
The pinhole: gateway to ultra-high-resolution three-dimensional radionuclide imaging.
Pinhole SPECT: an approach to in vivo high resolution SPECT imaging in small laboratory animals.
Ultra-high resolution SPECT system using four pinhole collimators for small animal studies.
Tomographic thyroid scintigraphy: comparison with standard pinhole imaging: concise communication
Thallium-201 myocardial scintigraphy: a critical comparison of seven-pinhole tomography and conventional planar imaging.