Motion Correction for PET and SPECT

Technology #ua14-117

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Categories
Researchers
Phillip Kuo
Associate Professor, Radiology
Bijan Najafi
Professor, Surgery
Matthew Kupinski
Associate Professor, Optical Sciences
Managed By
Rakhi Gibbons
Asst. Director, Life Sciences (520) 626-6695

Background

Motion artifacts are disruption in medical images caused by motion of the object being imaged.  The elimination of motion artifacts is important when using multi-modality imaging systems; for example, Positron Emission Tomography (PET), Single Photon Emission Computed Tomography (SPECT), and MRI/SPECT (Magnetic Resonance Imaging). 

During operation, these systems may exhibit image quality that is affected by the motion of the object being imaged.  This poses a major problem for patients who have suffer from uncontrollable muscle tremors such as Parkinson’s Disease.  These patients struggle to stay still during imaging making it really difficult to obtain a high quality image.  Also, images of certain areas of the body, for example the chest, are affected by the movement of the heart and lungs.  These motion artifacts cause underestimation and misinterpretation of medical images.  For example, images of the lung or brain region suffer from these artifacts and if undetected could lead to misinterpretation by health professionals.  This invention addresses these problems.

Invention

The presented invention provides a device and method for correcting motion related artifacts.  It does it by detecting motion of the object and using a corresponding algorithm to eliminate the artifact.   

Applications

This systems methods and devices have specific application to medical and other applications where it is desirable to eliminate artifacts due to motion.  This has specific application to medical imaging especially to motion compensation in nuclear imaging modalities (PET/SPECT).

Inventor

Phillip Kuo

Associate Professor

Medical Imaging, Medicine, Biomedical Engineering

University of Arizona

Bijan Najafi

Associate Professor

Surgery

University of Arizona

Matthew Kupinski

Associate Professor

Optical Sciences

University of Arizona

Case Number

UA14-117