Hysterosalpingography with use of mobile C-arm fluoroscopy.

Objective: To review radiation exposure during hysterosalpingography (HSG) examinations with use of a mobile C-arm fluoroscopic imaging system with advanced features including pulsed fluoroscopy and last-image-hold capability.

Design: Retrospective clinical study.

Setting: Freestanding outpatient radiology office.

Planar imaging of positron-emitting radionuclides with a multicrystal camera.

A multicrystal gamma camera has been evaluated for the imaging of 511-keV photons resulting from positron emission. With minor instrument modifications, images of a phantom demonstrating good resolution are obtained. Satisfactory planar images are obtained in animals using fluorine-18 or rubidium-82.