Role of PROPELLER-DWI of the prostate in reducing distortion and artefact from total hip replacement metalwork

Czarniecki, Marcin; Caglič, Iztok; Grist, James T.; Gill, Andrew B.; Lorenc, Kamil; Slough, Rhys; Priest, Andrew N.; Barrett, Tristan

doi:10.1016/j.ejrad.2018.03.021

Cited by 36 publications

(26 citation statements)

References 17 publications

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“…Therefore, new acquisition techniques have been developed that result in less image distortion. These include DWI sequences with parallel imaging and selective two-dimensional excitation of a small examination volume (parallel transmitted EPI sequences) or multi-shot sequences with segmented readout and susceptibility artifact/ motion correction (readout segmented multishot EPI sequences) [16,17] (refer to discussions in the DWI sequence section). Furthermore, changing the phase encoding direction, increasing the bandwidth, enlarging the matrix, reducing the slice thickness, reducing the TE time or using special artifact reduction sequences such as MAVRIC (multi-acquisition variable-resonance image combination) and SEMAC (slice encoding for metal artifact correction) can be helpful for artifact reduction [18].…”

Section: Implantsmentioning

confidence: 99%

mpMRI of the Prostate (MR-Prostatography): Updated Recommendations of the DRG and BDR on Patient Preparation and Scanning Protocol

Franiel

Asbach

Beyersdorff

et al. 2021

Rofo

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The Working Group Uroradiology and Urogenital Diagnosis of the German Roentgen Society (DRG) revised and updated the recommendations for preparation and scanning protocol of the multiparametric MRI of the Prostate in a consensus process and harmonized it with the managing board of German Roentgen Society and Professional Association of the German Radiologist (BDR e. V.). These detailed recommendation define the referenced “validated quality standards” of the German S3-Guideline Prostate Cancer and describe in detail the topic 1. anamnestic datas, 2. termination of examinations and preparation of examinations, 3. examination protocol and 4. MRI-(in-bore)-biopsy. Key Points: Citation Format

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Section: Implantsmentioning

confidence: 99%

mpMRI of the Prostate (MR-Prostatography): Updated Recommendations of the DRG and BDR on Patient Preparation and Scanning Protocol

Franiel

Asbach

Beyersdorff

et al. 2021

Rofo

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“…If acquisition protocols are optimized and contemporary technology is employed, then 1.5T scanners are also able to provide sufficient diagnostic performance. 1.5T scanning may also be preferential when a patient has an implant non-compatible at higher field strengths, or with bilateral hip replacements in order to minimise artefact 22, 23,. The routine use of an endorectal coil (ERC) is no longer recommended 19.…”

Section: Mr Imagingmentioning

confidence: 99%

Multiparametric MRI - local staging of prostate cancer and beyond

Caglič

Kovač

Barrett

2019

Radiology and Oncology

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Background Accurate local staging is critical for treatment planning and prognosis in patients with prostate cancer (PCa). The primary aim is to differentiate between organ-confined and locally advanced disease with the latter carrying a worse clinical prognosis. Multiparametric MRI (mpMRI) is the imaging modality of choice for the local staging of PCa and has an incremental value in assessing pelvic nodal disease and bone involvement. It has shown superior performance compared to traditional staging based on clinical nomograms, and provides additional information on the site and extent of disease. MRI has a high specificity for diagnosing extracapsular extension (ECE), seminal vesicle invasion (SVI) and lymph node (LN) metastases, however, sensitivity remains poor. As a result, extended pelvic LN dissection remains the gold standard for assessing pelvic nodal involvement, and there has been recent progress in developing advanced imaging techniques for more distal staging. Conclusions T2W-weighted imaging is the cornerstone for local staging of PCa. Imaging at 3T and incorporating both diffusion weighted and dynamic contrast enhanced imaging can further increase accuracy. “Next generation” imaging including whole body MRI and PET-MRI imaging using prostate specific membrane antigen (68Ga-PSMA), has shown promising for assessment of LN and bone involvement as compared to the traditional work-up using bone scintigraphy and body CT.

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“…Furthermore, inherently less distorted non-EPI secquences may be used, such as periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) [89] , [90] . Up to now, only few studies evaluating these sequences with respect to DW image quality exist.…”

Section: Challenges With Respect To Dwi Accuracymentioning

confidence: 99%

Potentials and challenges of diffusion-weighted magnetic resonance imaging in radiotherapy

Leibfarth¹,

Winter²,

Lyng

et al. 2018

Clinical and Translational Radiation Oncology

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Role of PROPELLER-DWI of the prostate in reducing distortion and artefact from total hip replacement metalwork

Abstract: PROPELLER-DWI demonstrates better image quality and decreases both artefact and distortion compared to conventional echo planar sequences in patients with hip metalwork.

Cited by 36 publications

References 17 publications

mpMRI of the Prostate (MR-Prostatography): Updated Recommendations of the DRG and BDR on Patient Preparation and Scanning Protocol

mpMRI of the Prostate (MR-Prostatography): Updated Recommendations of the DRG and BDR on Patient Preparation and Scanning Protocol

Multiparametric MRI - local staging of prostate cancer and beyond

Potentials and challenges of diffusion-weighted magnetic resonance imaging in radiotherapy

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