VH-PET is a versatile PET scanner that can be configured in a conventional geometry for imaging a patient that is lying horizontally on a bed. Also, with a simple 90° rotation of the detector ring, it transforms to a novel PET scanner that can image a patient in seated position.
VH-PET™ scanner rotates horizontally to allow for imaging the heart in a seated position. It can also be used with a stationary cycle for “stressing” the patient while positioned inside the PET detector ring, scanning can start immediately after the heart reaches its peak stress, allowing for quantification of myocardial blood flow and reserve that is important for the diagnosis of microvascular disease.
In horizontal mode, VH-PET™ is designed to be placed next to a CT scanner and its table platform. The patient moves through the CT scanner and then into the gantry of the VH-PET. The images of the CT are put into the VH-PET computer for fusion with the PET images. The detector gantry has a diameter of 80 cm and a field of view of 73 cm diameter, and axial FOV of 20 cm. It has time-of-flight resolution of 250 picoseconds and spatial resolution of 3.5 mm FWHM. A Ge-68 rotating pin is used for attenuation correction.