Evaluation of MRI Artifact in some selected centers in Kano Metropolis, Nigeria
Sidi Mohammed1, Muhammad Abubakar1
1Bayero University, Department of Medical Radiography.
Background:
Magnetic Resonance Imaging (MRI) artifacts can occur due to hardware or software related problems, human physiologic phenomenon or physical restrictions. Careful study design and scanning protocols can prevent certain artifacts from occurring, but some are unavoidable.
Study Aims:
The study aimed at evaluating MRI artifact in some selected centers in Kano metropolis, Nigeria.
Methodology:
A descriptive cross-sectional study was conducted involving both prospective and retrospective phases across three centres in the Kano metropolis from March 2019 to August 2019. Using the purposive sampling method, 3 centers were selected. A data capture sheet was designed for data collection.
Results:
Thirty five (50%) of the artifacts encountered were from the centreA, 28(40%) from the centre B, and 7(10%) from the centre C. Motion-induced artifact was the most frequently encountered artifact 26(37.1%), followed by wrap-around artifact 15(21.4%), and then frequency-induced artifact 13(18.6%). Thoracic spine MRI had the highest number of artifacts 28(40%), followed by brain 20(28.6%), and then lumbar spine 19(27.1%).
Conclusion:
In Kano metropolis the most encountered MRI artifact was the motion-induced artifact and thoracic spine MRI had the highest number of artifacts. The artifacts had a negative effect on image quality.
Insights
Motion-induced artifacts were most common in Magnetic Resonance Imaging (MRI) scans in Kano, Nigeria. Thoracic spine MRI showed the highest artifact rates, negatively impacting image quality.
Area of Science:
- Radiology
- Medical Imaging
- Diagnostic Imaging
Background:
- Magnetic Resonance Imaging (MRI) artifacts stem from various sources including hardware, software, physiology, and physical constraints.
- While meticulous study design and scanning protocols can mitigate some artifacts, complete prevention is not always feasible.
Purpose of the Study:
- To assess and quantify the prevalence of MRI artifacts in selected healthcare centers within Kano metropolis, Nigeria.
- To identify the types and origins of common MRI artifacts encountered in the region.
Main Methods:
- A descriptive cross-sectional study was performed, incorporating both prospective and retrospective data collection.
- The study spanned from March 2019 to August 2019 across three selected centers in Kano metropolis.
- Purposive sampling was used to select the centers, and a dedicated data capture sheet facilitated data collection.
Main Results:
- Center A reported 50% of artifacts, Center B 40%, and Center C 10%.
- Motion-induced artifacts were most frequent (37.1%), followed by wrap-around (21.4%) and frequency-induced artifacts (18.6%).
- Thoracic spine MRI exhibited the highest artifact incidence (40%), followed by brain (28.6%) and lumbar spine (27.1%).
Conclusions:
- Motion-induced artifacts are the predominant type encountered in MRI examinations within Kano metropolis.
- Thoracic spine MRI scans are most susceptible to artifacts, which adversely affect overall image quality.
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