Comparison and prediction of artefact severity due to total hip replacement in 1.5 T versus 3 T MRI of the prostate. Issue 144 (November 2021)

• Record Type: Journal Article
• Authors: Boschheidgen, M.; Ullrich, T.; Blondin, D.; Ziayee, F.; Kasprowski, L.; Ljimani, A.; Arsov, C.; Albers, P.; Antoch, G.; Schimmöller, L.
• Is Part Of: European journal of radiology. Issue 144(2021)
• Publication Date: 2021-11
• Subjects: Prostatic Neoplasms -- Multiparametric Magnetic Resonance Imaging -- Diffusion Magnetic Resonance Imaging -- Magnetic Resonance Imaging Interventional Arthroplasty Replacement Hip -- Artifacts; ADC apparent diffusion coefficient -- CM contrast medium -- DWI diffusion weighted imaging -- rs-EPI readout segmented echo-planar imaging -- ss-EPI single slice echo-planar imaging -- ptx-EPI parallel transmit echo-planar imaging -- DCE dynamic contrast enhancement -- mpMRI multiparametric magnetic resonance imaging -- PCA prostate cancer -- PI-QUAL prostate imaging quality scoring system -- PIRADS prostate imaging and reporting archiving data system -- PSA prostate specific antigen -- PSAD prostate specific antigen density -- T1w T1-weighted Imaging -- T2w T2-weighted Imaging -- THR total hip replacement -- SI signal intensity; Medical radiology -- Periodicals; Radiology -- Periodicals; Radiologie médicale -- Périodiques; Medical radiology; Periodicals; 616.075705
• DOI: 10.1016/j.ejrad.2021.109949
• Languages: English
• ISSNs: 0720-048X

Abstract

Abstract: Purpose: To evaluate image quality and diagnostic value of multiparametric prostate MRI (mpMRI) in patients with total hip replacement (THR) at 1.5 and 3 Tesla. Methods: In this retrospective multicenter cohort study patients with uni- or bilateral THR and 1.5 T or 3 T mpMRI were included. Seventy consecutive, standard-of-care examinations per field strength were evaluated regarding their diagnostic value. The overall diagnostic value and prostate imaging quality score (PI-QUAL) were assessed. Artifact severity in the localizer and mpMRI sequences (T2w, DWI, DCE) was scored on a 3-point scale. Correlation between diagnostic value and artifacts was analysed. Moreover, a subgroup analysis focussed on image quality at different 3 T scanner generations. Results: 140 consecutive patients (mean age 72, median PSA value 8.3 ng/ml) were included. When comparing 1.5 T to 3 T examinations, no significant differences were observed regarding the artifact severity of DWI and the localizer and the overall diagnostic value of the images. There was a strong correlation between the diagnostic value, PI-QUAL score, and artifact severity in the localizer and DWI. T2w and DCE sequences showed overall low artifacts. Significant improvement in image quality for 3 T at the latest scanner generation was observed, especially for DWI (p < 0.03). Conclusions: MpMRI of patients with THR can be conducted at both field strengths without significant differences in artifacts. The localizer might be useful as an early forecasting feature for diagnostic value and particularly for contrast medium application decision. Patients with THR could benefit from technically advanced scanner generation and rs/ptx-EPI DWI sequences.