Prostate magnetic resonance imaging (MRI) in patients with hip implants-presetting a protocol using a phantom

Area of Science:

• Medical Imaging
• Radiology
• Prostate Cancer Diagnosis

Background:

• Metal implants create artifacts complicating prostate MRI interpretation.
• Prostate MRI is increasingly used for cancer detection.
• Artifacts from hip implants hinder accurate diagnosis.

Purpose of the Study:

• Reduce artifacts from metal hip implants during prostate MRI.
• Evaluate artifact reduction methods' impact on quantitative measurements.
• Improve diagnostic accuracy in patients with hip implants.

Main Methods:

• Utilized a prostate gland phantom model with varying concentrations.
• Conducted MRI phantom studies on Philips Ingenia 1.5T and 3T scanners.
• Applied manual artifact reduction (MAR) and ZOOM techniques.

Main Results:

• Observed artifact reduction and decreased apparent diffusion coefficient (ADC) on 1.5T with MAR and ZOOM.
• No significant artifact reduction effect detected on 3T scanners.
• 3T scanners showed significant ADC deviation (up to 30.4%), requiring correction coefficients.

Conclusions:

• Accurate prostate MRI with implants is crucial for diagnosis.
• The developed approach reduces hip implant artifacts.
• Enables better visualization of prostate and surrounding tissues for detecting cancerous and benign changes.