Quantification of fiducial marker visibility for MRI | 合法醫療器材資訊網
由KSinghrao著作·2020·被引用2次—ToobjectivelycomparethesuitabilityofMRIpulsesequencesandcommerciallyavailablefiducialmarkers(FMs)forMRI-onlyprostate ...
To objectively compare the suitability of MRI pulse sequences and commercially available fiducial markers (FMs) for MRI-only prostate radiotherapy simulation. Most FMs appear as small signal voids in MRI images making them difficult to differentiate from tissue heterogeneities such as calcifications. In this study we use quantitative metrics to objectively evaluate the visibility of FMs in 27 patients and an anthropomorphic phantom with a variety of standard clinical MRI pulse sequences and commercially available FMs. FM visibility was quantified using the local contrast-to-noise-ratio (lCNR), the difference between the 80th and 20th percentile iso-intensity FM volumes (V fall) and the largest iso-intensity volume that can be distinguished from background: apparent-marker-volume (AMV). A larger lCNR and AMV, and smaller V fall represents a more easily identifiable FM. The number of non-marker objects visualized ...
Evaluation of gold fiducial marker manual localisation for ... | 合法醫療器材資訊網
Fiducial Markers | 合法醫療器材資訊網
In Vitro Assessment of a Fiducial Marker for Lung Lesions ... | 合法醫療器材資訊網
Internal fiducial markers and susceptibility effects in MRI ... | 合法醫療器材資訊網
MRI Non | 合法醫療器材資訊網
MRI visibility of gold fiducial markers for image ... | 合法醫療器材資訊網
MRI visibility of gold fiducial markers for image | 合法醫療器材資訊網
Quantification of fiducial marker visibility for MRI | 合法醫療器材資訊網
The advantage of iron | 合法醫療器材資訊網
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