Image processing method and medical imaging apparatus employing the method

Patent metadata

Field	Value
Publication number	US-9523754-B2
Application number	US-201414517071-A
Country	US
Kind code	B2
Filing date	Oct 17, 2014
Priority date	Oct 25, 2013
Publication date	Dec 20, 2016
Grant date	Dec 20, 2016

Abstract

A method for generating an image by using a medical imaging apparatus includes acquiring first slab data which relates to a first imaging slab, acquiring second slab data which relates to a second imaging slab at a position which is different from a position of the first imaging slab, and generating a restored image by using data from among the acquired first slab data and data from among the acquired second slab data in slices which correspond to a same position on an object.

First claim

What is claimed is:

1. A method for generating an image by using a medical imaging apparatus, the method comprising:
acquiring first slab data which relates to a first imaging slab which is located at a first position;
acquiring second slab data which relates to a second imaging slab which is located at a second position which is different from the first position; and
generating a restored image by using data from among the acquired first slab data and data from among the acquired second slab data in slices which correspond to a same position on an object,
wherein the generating the restored image comprises:
generating a composite image by using first slice data which relates to a first slice from among the slices and second slice data which relates to a second slice from among the slices; and
generating the restored image by using the composite image and slice data selected from among at least one of the first slice data and the second slice data based on a contrast.

2. The method of claim 1 , wherein the generating the restored image comprises assigning a respective weight based on a corresponding contrast value of each of the first slice data and the second slice data to each of the first slice data and the second slice data, and restoring the image based on the data to which the weights are assigned.

3. The method of claim 1 , wherein the acquiring the first slab data comprises using a first sampling rate which is lower than a predetermined minimum image restoration sampling rate, and the acquiring the second slab data comprises using a second sampling rate which is lower than the predetermined minimum image restoration sampling rate.

4. The method of claim 1 , wherein a distance between the second position and the first position is substantially equal to a thickness of at least one slice from among the slices.

5. The method of claim 1 , wherein at least one from among the acquired first slab data and the acquired second slab data includes data which is acquired based on radial sampling.

6. A medical imaging apparatus comprising:
a data acquisition module configured to acquire first slab data which relates to a first imaging slab which is located at a first position and to acquire second slab data which relates to a second imaging slab which is located at a second position which is different from the first position; and
an image processor configured to generate a restored image by using data from among the acquired first slab data and data from among the acquired second slab data in slices which correspond to a same position on an object, to generate a composite image by using first slice data which relates to a first slice from among the slices and second slice data which relates to a second slice from among the slices, and to generate the restored image by using the composite image and slice data from among at least one of the first slice data and the second slice data, which slice data is determined based on a contrast.

7. The medical imaging apparatus of claim 6 , wherein the image processor is further configured to assign a respective weight based on a corresponding contrast value of each of the first slice data and the second slice data to each of the first slice data and the second slice data, and to restore the image based on the data to which the weights are assigned.

8. The medical imaging apparatus of claim 6 , wherein the data acquisition module is further configured to acquire each of the first slab data and the second slab data by using a sampling rate which is lower than a predetermined minimum image restoration sampling rate.

9. The medical imaging apparatus of claim 6 , wherein a distance between the second position and the first position is substantially equal to a thickness of at least one slice from among the slices.

10. The medical imaging apparatus of claim 6 , wherein the data acquisition module is further configured to acquire each of the first slab data and the second slab data based on radial sampling.

11. A non-transitory computer readable storage medium having stored thereon a program which, when executed by a computer, implements the method of claim 1 .

12. A method for generating an image by using a medical imaging apparatus, the method comprising:
acquiring first data which relates to a first position of the medical imaging apparatus with respect to an object;
acquiring second data which relates to a second position of the medical imaging apparatus with respect to the object, the second position being different from the first position; and
generating a restored image by combining data from among the acquired first data which corresponds to at least a first cross-sectional slice of the object with data from among the acquired second data which is determined to correspond to the same at least first cross-sectional slice of the object,

wherein the generating the restored image comprises:
generating a composite image by using first slice data which relates to the first cross-sectional slice of the object and second slice data which relates to a second cross-sectional slice of the object; and
generating the restored image by using the composite image, wherein the generating the restored image comprises assigning a respective weight based on a corresponding contrast value of each of the first slice data and the second slice data to each of the first slice data and the second slice data, and restoring the image based on a result of the assigning.

13. The method of claim 12 , wherein a distance between the second position and the first position is substantially equal to a thickness of the first cross-sectional slice.

14. The method of claim 12 , wherein at least one from among the acquired first data and the acquired second data includes data which is acquired based on radial sampling.

15. The method of claim 1 , wherein the contrast comprises an image contrast value associated with at least one from among the first slice data and the second slice data.

Assignees

• Samsung Electronics Co Ltd
• Korea Advanced Inst Sci & Tech

Inventors

• Park Hyun-Wook
• Jo Jae-Moon
• Choi Joon-Sung
• Han Ye-Ji

Classifications

• G01R33/5635

  Angiography, e.g. contrast-enhanced angiography [CE-MRA] or time-of-flight angiography [TOF-MRA] · CPC title

• G01R33/565 Primary

  Correction of image distortions, e.g. due to magnetic field inhomogeneities · CPC title

• G01R33/4835

  of multiple slices · CPC title

• G01R33/4824

  using a non-Cartesian trajectory · CPC title

• G01R33/482

  using a Cartesian trajectory · CPC title