| Autor: |
Sara Lewis, Aasrith Ganti, Pamela Argiriadi, Ally Rosen, Stefanie Hectors, Sahar Semaan, Christopher Song, Steve Peti, Maxwell Segall, Kezia George, Vaneela Jaikaran, Sebastian Villa, David Kestenbaum, Nicholas Voutsinas, John Doucette, Ashutosh Tewari, Ardeshir R. Rastinehad, Bachir Taouli |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Cancer imaging : the official publication of the International Cancer Imaging Society. 22(1) |
| ISSN: |
1470-7330 |
| Popis: |
Background To compare image quality, lesion detection and patient comfort of 3T prostate MRI using a combined rigid two-channel phased-array endorectal coil and an external phased-array coil (ERC-PAC) compared to external PAC acquisition in the same patients. Methods Thirty three men (mean age 65.3y) with suspected (n = 15) or biopsy-proven prostate cancer (PCa, n = 18) were prospectively enrolled in this exploratory study. 3T prostate MRI including T2-weighted imaging (T2WI) and diffusion-weighted imaging (DWI) was performed using an ERC-PAC versus PAC alone, in random order. Image quality, lesion detection and characterization (biparametric PI-RADSv2.1) were evaluated by 2 independent observers. Estimated signal-to-noise ratio (eSNR) was measured in identified lesions and the peripheral zone (PZ). Patient comfort was assessed using a questionnaire. Data were compared between sequences and acquisitions. Inter/intra-observer agreement for PI-RADS scores was evaluated. Results Twenty four prostate lesions (22 PCa) were identified in 20/33 men. Superior image quality was found for ERC-PAC compared to PAC for T2WI for one observer (Obs.1, p p p-values ≥0.08). Inter−/intra-observer agreement for PI-RADS scores was moderate-to-substantial (kappa = 0.52–0.84). Higher eSNR was observed for lesions and PZ for T2WI and PZ for DWI using ERC-PAC (p Conclusion Despite improved image quality and eSNR using the rigid ERC-PAC combination, no significant improvement in lesion detection was observed, therefore not supporting the routine use of ERC for prostate MRI. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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