Medical diagnostic imaging apparatus

摘要

Provided is a medical image diagnosis apparatus which requires a small area for installation, has a short length in an axial direction of the apparatus, can reduce a problem of the strength of a top plate, and can simultaneously carry out dynamic PET-imaging of the entire body. A top plate (61) on which an examinee lies is moved through a tunnel of a CT gantry (2) and a PET gantry (3) to execute CT imaging and PET imaging. A PET unit consisting of a plurality (e.g. seven) of PET units (32) has a length of 2 m in the axis direction, the visual field thereof covers the whole body and the whole body can be simultaneously subjected to dynamic PET-imaging. For the maintenance of the PET gantry (3), the diagnosis apparatus is separated at an arbitrary PET unit (32) to be maintained, the apparatus slides on a rail (31) in the axis direction and is separated for maintenance operation. Accordingly, a large space for maintenance is not required and the area for installation is small.

主权项

1. A medical diagnostic imaging apparatus comprising:
a Positron Emission Computer Tomography (PET) apparatus including a first gantry, the first gantry having a first tunnel into which a patient is inserted; and an x-ray Computed Tomography (CT) apparatus including a second gantry having a second tunnel into which the patient is inserted, wherein the first gantry is dividable into PET units along a first direction of inserting the patient into, or a second direction of removing the patient from, the first tunnel of the first gantry, each PET unit comprising a PET detector configured to detect a gamma ray, each PET unit being configured to be movable in the first and second directions, the PET apparatus further comprises a guide configured to move each PET unit in the first and second directions, and the PET apparatus has an operation mode and a maintenance mode, in the operation mode, the PET units are connected together to allow the patient to be inserted into the first gantry for obtaining a PET image, and in the maintenance mode, at least one PET unit is separated from others along the guide to perform maintenance of the PET apparatus.