دورية أكاديمية
Pediatric whole-body magnetic resonance imaging: Intra-individual comparison of technical quality, artifacts, and fixed structure visibility at 1.5 and 3 T
| العنوان: | Pediatric whole-body magnetic resonance imaging: Intra-individual comparison of technical quality, artifacts, and fixed structure visibility at 1.5 and 3 T |
|---|---|
| المؤلفون: | Shyam Mohan, Rahim Moineddin, Govind B Chavhan |
| المصدر: | Indian Journal of Radiology and Imaging, Vol 25, Iss 04, Pp 353-358 (2015) |
| بيانات النشر: | Thieme Medical and Scientific Publishers Pvt. Ltd., 2015. |
| سنة النشر: | 2015 |
| المجموعة: | LCC:Medical physics. Medical radiology. Nuclear medicine |
| مصطلحات موضوعية: | 1.5 t, 3 t, artifacts, children, image quality, whole‑body magnetic resonance imaging, Medical physics. Medical radiology. Nuclear medicine, R895-920 |
| الوصف: | Purpose: To compare whole-body magnetic resonance imaging (WBMRI) performed at 1.5 and 3 T for technical quality, artifacts, and visibility of selected fixed structures. Patients and Methods: 21 children who had WBMRI at both 1.5 and 3 T scanners within a relatively short interval (3-13 months; average-8.6 months) were included. The images were objectively compared with scores from 4 to 1 for five parameters including severity of artifacts; visibility of liver, vertebral column, and marrow in legs; and overall image quality. Inter-observer agreement was calculated using Kendall's coefficient of Concordance (W) and scores were compared using Signed Rank test. Results: There was substantial inter-observer agreement for all five categories at both field strengths. The difference between averages of mean scores of all five parameters for two field strengths was statistically significant (P < 0.05), indicating less artifact, better fixed structure visibility, and overall image quality at 1.5 T as compared to 3 T. However, scores at 3 T were also rated within a good range (around 3) indicating its feasibility for WBMRI in children. Conclusion: WBMRI at 1.5 T has significantly better image quality, fixed structure visibility, and fewer artifacts, as compared to WBMRI at 3 T in children. This difference is unlikely to significantly affect detection of pathology on 3 T WBMRI as the image quality score at 3 T was also within good range. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 0971-3026 1998-3808 |
| العلاقة: | https://doaj.org/toc/0971-3026Test; https://doaj.org/toc/1998-3808Test |
| DOI: | 10.4103/0971-3026.169448 |
| الوصول الحر: | https://doaj.org/article/adc9fce2b2264d4aa761a13b976c2a55Test |
| رقم الانضمام: | edsdoj.9fce2b2264d4aa761a13b976c2a55 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 09713026 19983808 |
|---|---|
| DOI: | 10.4103/0971-3026.169448 |