Image scanning methods and systems for medical devices
The present disclosure relates to an image scanning method and system for a medical device. The method may include determining a target position of a scanned object in a scanning region of the medical device; moving the scanned object to the target position. The method may include controlling the medical device to perform a scanning on the scanned object to obtain a scanned image of the scanned object. The method may include determining at least one abnormal point in the scanned image and recommending a scanning protocol based on the at least one abnormal point. The method may further include controlling the medical device to perform a scanning on the scanned object based on the scanning protocol.
1 . An image scanning method for a medical device, the method being implemented on a computing device including at least one processor and at least one storage device, comprising:
dividing a scanning region into a plurality of sub-regions based on a sensitivity distribution and geometrical structure parameters of the scanning region;
determining a target position of a scanned object in the scanning region of the medical device based on information data of the scanned object and an extent of the plurality of sub-regions, wherein in response to that the scanned object is located at the target position, a target scanning site of the scanned object is located in the scanning region of the medical device;
moving the scanned object to the target position;
controlling the medical device to perform a first scanning on the scanned object to obtain a first scanned image of the scanned object;
determining at least one abnormal point in the first scanned image;
recommending a scanning protocol based on the at least one abnormal point; and
controlling the medical device to perform a second scanning on the scanned object based on the scanning protocol.
2 . The method of claim 1 , wherein in response to that the scanned object is located at the target position, the target scanning site of the scanned object is located in a sub-region with a sensitivity higher than a preset threshold, and the preset threshold is determined based on a number of the plurality of divided sub-regions.
3 . The method of claim 2 , wherein the determining the target position of the scanned object in the scanning region of the medical device based on the information data of the scanned object and the extent of the sub-regions includes:
determining a scanning range of the scanned object based on the information data of the scanned object; and
determining the target position from a range of the plurality of sub-regions based on the scanning range of the scanned object and image quality requirements of multiple regions within the scanning range in the first scanned image.
4 . The method of claim 1 , wherein
the medical device includes a PET scanner, and
the at least one abnormal point includes at least one glucose metabolism abnormal point.
5 . The method of claim 1 , wherein the determining the target position of the scanned object in the scanning region of the medical device includes:
determining a scanning range of the scanned object;
determining a geometric center of the scanning range; and
determining the target position based on the geometric center of the scanning range and a center of the scanning region of the medical device.
6 . The method of claim 1 , wherein
the medical device includes a first modal imaging device and a second modal imaging device, the first scanned image being obtained by the first modal imaging device;
the controlling the medical device to perform the second scanning on the scanned object based on the scanning protocol includes:
controlling the second modal imaging device to perform the second scanning on the scanned object based on the scanning protocol to obtain a second scanned image of the scanned object.
7 . The method of claim 6 , wherein
the first modal imaging device includes a PET scanner, and
the second modal imaging device includes a CT scanner.
8 . The method of claim 1 , wherein the recommending the scanning protocol based on the at least one abnormal point includes:
adding a label to each of the at least one abnormal point in the first scanned image; and
recommending the scanning protocol based on a number of labels of the at least one abnormal point.
9 . The method of claim 8 , further comprising:
if the number of labels of the at least one abnormal point is 1, moving the scanned object to cause the abnormal point to coincide with a position corresponding to a scanning center of the medical device.
10 . The method of claim 9 , further comprising:
if there are a plurality of labels of abnormal points in the first scanned image, obtaining axial coordinates of each label of the plurality of labels, and
planning a scanning range based on maximum and minimum values of the axial coordinates of the plurality of labels to make that the scanning range covers abnormal points corresponding to the plurality of labels.
11 . The method of claim 10 , further comprising:
if there are the plurality of labels of abnormal points in the first scanned image, moving the scanned object to cause a center position of a densely distributed region of the labels to coincide with a center position of the scanning range.
12 . The method of claim 11 , wherein the recommending the scanning protocol based on the at least one abnormal point includes:
if there are the plurality of labels of abnormal points in the first scanned image, looking up, in a scanning protocol database established in advance, scanning protocols associated with the abnormal points corresponding to the plurality of labels;
generating a scan protocol list corresponding to the abnormal points based on the scanning protocols; and
displaying the scan protocol list on an interactive interface of the medical device.
13 . An image scanning method for a medical device, the method being implemented on a computing device including at least one processor and at least one storage device, comprising:
dividing a scanning region into a plurality of sub-regions based on a sensitivity distribution and geometrical structure parameters of the scanning region; and
determining a target position of a scanned object in the scanning region of the medical device based on information data of the scanned object and an extent of the plurality of sub-regions, wherein in response to that the scanned object is located at the target position, a target scanning site of the scanned object is located in the scanning region of the medical device;
controlling a scanning couch to move the scanned object to the target position; and
controlling the medical device to perform a scanning on the scanned object.
14 . The method of claim 13 , further comprising:
determining scanning parameters, wherein the scanning parameters include at least one of a scanning range of the scanned object, position points within the scanning range, or a scanning duration; and
determining, based on the scanning parameters, the target position of the scanned object in the scanning region of the medical device.
15 . The method of claim 14 , wherein the determining, based on the scanning parameters, the target position of the scanned object in the scanning region of the medical device includes:
obtaining positional information of the scanned object; and
determining the target position of the scanned object in the medical device based on the positional information and the scanning parameters.
16 . The method of claim 13 , wherein the medical device includes a PET scanner, an axial length of the PET scanner being at least 0.75 m.