A CT apparatus includes an annular frame that rotates around a subject positioned in a bore, three columns that hold the frame to be rotatable and movable up and down in a vertical, an elevation mechanism that moves up and down the frame, and a rotation mechanism that rotates the frame. A radiation source and a radiation detector are attached to the frame at positions facing each other. The frame has a width smaller than a width of the radiation source and the radiation detector in a height direction over a whole periphery. An imaging controller performs control for operating the elevation mechanism in response to a return instruction from an operator to move the frame to a retreat height position set at a position of a highest point in an elevation range of the frame on an upper end side of the columns. The imaging controller performs control for operating the rotation mechanism in response to the return instruction from the operator to rotate the frame to a position of 60° that is a first rotation position where the radiation source overlaps the columns.

An imaging apparatus for use with an imaging device in order to image a subject. The imaging device includes an annular gantry having an opening and a table to accommodate the subject or a portion thereof for imaging. The imaging apparatus includes a platform and a positioning device. The imaging device is mounted to the platform. The annular gantry is in a fixed position relative to the platform. The table is horizontally displaceable relative to the annular gantry. The positioning device supports the platform and is configured to horizontally displace the platform relative to a supporting surface for the subject. The positioning device is configured to position the platform with the imaging device in at least one operational state in such a way that, during a relative movement of the table with respect to the annular gantry, the table remains stationary relative to the supporting surface.

A radiation medical device, including a main support, and a radiation assembly (30) and an imaging assembly (20) respectively located at both ends of the main support. After an imaging scan is completed and pathological tissue positioning pictures are taken, a patient is directly moved to the other end of the main support to allow the radiation assembly (30) to perform radiation therapy to improve the efficiency of the radiation therapy after the completion of pathological tissue positioning, and effectively reduce movement of the patient when the patient is being moved for radiation therapy after the imaging assembly (20) completes pathological tissue positioning, thus reducing pathological tissue positioning error caused by too much movement.

A radiotherapy apparatus for the delivery of an energetic beam to a target tissue in a treatment zone, including: a rotatable gantry for rotating the end of a beam delivery system about a circle centered on an isocentre and normal to an axis of rotation Z1 of the gantry, the path between the end of the beam delivery system and the isocentre defining a central beam axis Z2 at every rotation angle of the gantry about the axis of rotation Z1; an imaging ring having a central bore and an imaging system for acquiring images of a patient in an imaging zone of the imaging system, wherein the imaging ring is located in the radiotherapy apparatus such that its imaging zone intersects the axis of rotation Z1 of the gantry, and wherein the imaging ring is mechanically coupled to the rotatable gantry through a mechanical structure.

A scanning apparatus (110), a medical image obtaining method, and a medical image obtaining system (100) are provided. The scanning apparatus (110) comprises a gantry, a controller, a C-shaped arm, a radiation source (112), and a detector (113). The radiation source (112) and the detector (113) are arranged at both ends of the C-shaped arm. The C-shaped arm is connected to the gantry. The controller is configured to control a motion of the gantry to drive the C-shaped arm to move so as to scan a target object.

A CT apparatus includes a radiation source that emits radiation, a radiation detector that detects the radiation, an annular frame to which the radiation source and the radiation detector are attached and in which a subject is positioned in a bore, and three columns that hold the frame to be movable up and down in a vertical direction.

To provide technology that reduces vibrations in a yawing direction. A driving device 70 that drives a table 4 provided with a structure 50 including a cradle 40, comprising: a shaft 96 rotatable about a rotation axis along a longitudinal direction of the cradle 40; a first conversion part 100A provided on a first end side of the shaft 96 and that converts a rotational motion of the shaft 96 into a linear motion for moving the structure 50 in a transverse direction, where the transverse direction is a direction orthogonal to the longitudinal direction of the cradle 40 and a height direction of the table 4; and a second conversion part 100B provided on a second end side of the shaft 96 and that converts the rotational motion of the shaft 96 into a linear motion.

A computer tomograph operates by rigidly arranged x-ray tubes, which are components of emitter-detector elements, which form an emitter-detector ring opened by relocating one emitter-detector element. Each x-ray tube includes a cathode emitting electrons, and an anode arrangement having an anode. Each cathode has an orientation angle relative to the geometrical center axis of the computer tomograph. A tangential plane on the focal spot of the anode has a surface normal, which includes an anode angle with the center axis. X-ray radiation emitted from the focal spot is directed in a center radiation angle to an x-ray detector axially offset relative to the x-ray tubes. The quotient from the sum of the orientation angle, radiation angle and anode angle is between two ninths and two. Each cathode, interacting with an electrode arrangement of the x-ray tubes, produces a focal spot on one of selectable positions on the anode arrangement.

A multi-axis imaging system comprising an imaging gantry with an imaging axis extending through a bore of the imaging gantry, a support column that supports the imaging gantry on one side of the gantry in a cantilevered manner, and a base that supports the imaging gantry and the support column. The imaging system including a first drive mechanism that translates the gantry in a vertical direction relative to the support column and the base, a second drive mechanism that rotates the gantry with respect to the support column between a first orientation where the imaging axis of the imaging gantry extends in a vertical direction parallel to the support column and a second orientation where the imaging axis of the gantry extends in a horizontal direction parallel with the base, and a third drive mechanism that translates the support column and the gantry in a horizontal direction along the base.

Systems and methods relate to multi-modal imaging of tissue combined with highly focused radiation interventions. The system is a portable multimodal imaging unit that integrates imaging and image analysis. The system can be retrofitted to use with any commercial radiation therapy machine. In one aspect, a system integrates various imaging modalities into a single, coordinated structure. The system integrates X-ray and cone beam computed tomography (CBCT), optical imaging (such as bioluminescent imaging (BLI), fluorescence tomography (FT)), and positron emission tomography (PET) imaging in a single, self-contained structure.