Evaluating the accuracy of multicomponent T
| Autor: | Rachel W, Chan, Angus Z, Lau, Garry, Detzler, Vivekanandan, Thayalasuthan, Robert K, Nam, Masoom A, Haider |
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| Rok vydání: | 2017 |
| Předmět: |
Male
Phantoms Imaging Prostate Prostatic Hyperplasia Prostatic Neoplasms Reproducibility of Results Water Middle Aged Signal-To-Noise Ratio Magnetic Resonance Imaging Imaging Three-Dimensional Image Processing Computer-Assisted Humans Computer Simulation Least-Squares Analysis Monte Carlo Method Algorithms Aged |
| Zdroj: | Magnetic resonance in medicine. 81(1) |
| ISSN: | 1522-2594 |
| Popis: | Prostate cancer can be detected using a multicomponent TThe accuracy of parameter estimates was assessed using Monte Carlo simulations, in phantom experiments and in the prostate (in 5 healthy subjects). Two fitting methods, nonnegative least squares and biexponential fitting with stimulated echo correction, were compared.Results demonstrate that inner volume selection in a gradient and spin echo sequence is effective for accelerating prostate luminal water imaging by at least threefold. Evaluation of the accuracy shows that the estimated luminal water fractions are relatively accurate, but the short- and long-TThe shortened scan duration allows the luminal water imaging sequence to be easily integrated into a standard multiparametric prostate MRI protocol. |
| Databáze: | OpenAIRE |
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