Analysis of BM3D Denoising Techniques to Improvement of Thoracal MRI Image: Study on Low Field MRI

Abstract

MRI examination is one of the medical supports to assess the structure and anatomy of vertebrae thoracal. The modality that can be used is low field MRI. The disadvantages are produces low signals and noise. If the signal is low and the noise is high then the SNR value is low. The denoising technique is the right solution to remove noise. The BM3D denoising technique is able to reduce noise and increase the SNR. Aim to analyzing differences in image quality on Thoracal MRI images; study on low field MRI before and after the application of BM3D denoising techniques. This method is a quasi experimental research on Thoracal MRI images before and after the application of BM3D denoising techniques, totaling 15 samples. BM3D denoising was performed as well as assessment of Thoracal MRI images, including SNR and CNR. The Results is there are differences in SNR and CNR on Thoracal MRI images; study in low field MRI before and after the application of the BM3D denoising technique with p-value <0,001 and <0,001. The Conclusion is the BM3D denoising technique is able to improving image quality on thoracic MRI images; studies on low-field MRI.