Patent ID: 7263733

Claim:
An X-ray CT apparatus, comprising: a tabletop of an image diagnosis bed having a surface with a fixing hole and a connecting hole formed in a face of one end of the tabletop; and a headrest for supporting the head of a person, the headrest including a connecting portion adapted for insertion in the connecting hole and having leaf springs configured to connect the headrest to the tabletop removably, each leaf spring having a protrusion engageable in the fixing hole and configured to communicate with the connecting hole, wherein the headrest and the connecting portion are made of an X-ray transmitting material, and wherein the headrest is configured to attach to an armrest including an armrest bottom and an armrest opening configured for insertion onto the headrest, the armrest including two support guides formed along two edges of the armrest and configured to support upper arm portions of the person, and a bottom plate that fits a top surface of the tabletop.