JP2012019892A5

JP2012019892A5 -

Info

Publication number: JP2012019892A5
Application number: JP2010159048A
Authority: JP
Filing date: 2010-07-13
Publication date: 2013-08-29
Anticipated expiration: 2030-07-13

Claims

A data collection unit for collecting projection data on the subject;
A data extraction unit that extracts a projection data set corresponding to an angle range required for image reconstruction from the projection data based on a peak value of a respiratory waveform obtained by measuring the respiratory motion of the subject ;
A reconstruction unit for reconstructing image data based on the extracted projection data set;
A radiation computed tomography apparatus comprising: a display unit configured to display the image data.

A peak / bottom identification unit that identifies a plurality of peak values and a plurality of bottom values over a plurality of respiratory cycles from the respiratory waveform;
A minimum value / maximum value selection unit that selects a minimum value from the plurality of specified peak values and selects a maximum value from the plurality of specified bottom values;
The radiation computed tomography apparatus according to claim 1, further comprising: a respiratory phase assignment unit that assigns a plurality of respiratory phases to a peak value range between the selected maximum value and minimum value.

A peak / bottom identification unit that identifies a plurality of peak values and a plurality of bottom values over a plurality of respiratory cycles from the respiratory waveform;
A display unit configured to display the respiratory waveform together with a plurality of peak marks representing the positions of the plurality of identified peak values and a plurality of bottom marks representing the positions of the plurality of identified bottom values; The radiation computed tomography apparatus according to claim 1.

An optional peak marks from a plurality of peaks marks pre Symbol displayed, and designation operation section for designating an arbitrary bottom mark from a plurality of bottom marks the displayed,
A breathing phase assigning unit for assigning a plurality of breathing phases to a peak value range between a peak value corresponding to the designated peak mark and a bottom value corresponding to the designated bottom mark; The radiation computed tomography apparatus according to claim 3 .

The peak / bottom specifying unit, the radiation computed tomography apparatus according to any one of claims 2 to 4, characterized in that identifying a peak value and a bottom value for each respiration cycle from the respiratory waveform.

A display for displaying the respiratory waveform;
A designation operation unit for designating an arbitrary peak value range on the displayed respiratory waveform;
The radiation computed tomography apparatus according to claim 1, further comprising: a respiratory phase assignment unit that assigns a plurality of respiratory phases to a plurality of peak values within the specified peak value range.

The radiation computer tomography apparatus according to claim 1, wherein the data extraction unit extracts the projection data set around a time indicating a peak value corresponding to a respiratory phase designated by an operator.

8. The radiation computed tomography apparatus according to claim 7, wherein the data collection unit repeatedly collects and stops the projection data based on a peak value of the respiratory waveform.

The radiation computed tomography apparatus according to claim 8 , wherein a predetermined message is displayed when the projection data set is not prepared from the collected projection data.

A data collection unit for collecting projection data on the subject;
A control unit for controlling the data collection unit such that the collection and stop of the projection data are repeated based on the peak value of the respiratory waveform obtained by measuring the respiratory motion of the subject ;
A reconstruction unit that reconstructs image data based on the collected projection data;
A radiation computed tomography apparatus comprising: a display unit configured to display the image data.

A data collection unit that collects data about the subject using radiation, ultrasound, or a high-frequency magnetic field;
A data extraction unit for extracting a data set from the data based on the peak value of the respiratory waveform;
A reconstruction unit for reconstructing image data based on the extracted data set;
A medical image generating apparatus comprising: a display unit that displays the image data.

A peak / bottom identification unit for identifying a plurality of peak values and a plurality of bottom values over a plurality of respiratory cycles from a respiratory waveform obtained by measuring a respiratory motion of the subject ;
A minimum value / maximum value selection unit that selects a minimum value from the plurality of specified peak values and selects a maximum value from the plurality of specified bottom values;
A respiratory phase measuring device comprising: a respiratory phase assigning unit that assigns a plurality of respiratory phases to a peak value range between the selected maximum value and minimum value.