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- W2461460138 abstract "Background: With the increasing use of MR to evaluate liver lesions the ability to accurately characterize individual liver lesions becomes critical if diagnostic certainty regarding malignant versus benign etiology is to supplant biopsy in many of these lesions. Our aims were to establish the error margin for lesion size characterization in vivo so that it becomes possible to ascertain when there has been a true interval size change in a lesion detected on MRI of the liver. Methods: A phantom study using 8mm chambers filled with water attached onto the abdomen of 2 volunteers during each undergoing 4 abdominal T2W MR exams using typical clinical parameters were measured twice each by 2 blinded observers and the size measurements (320 total) were analyzed for size consistency and variation. Results: The mean measurement was 8.5 mm with a standard deviation of 0.5mm. Indicating that at least 1mm size change (on the computer monitor) must be detected prior to concluding a true change in a lesion detected on abdominal MRI. (P<0.05). Conclusion: We recommend that at least a 1 mm change in size be used as a criteria to diagnose true lesion growth or regression when measured on T2W abdominal MRI." @default.
- W2461460138 created "2016-07-22" @default.
- W2461460138 date "2001-01-01" @default.
- W2461460138 modified "2023-09-26" @default.
- W2461460138 title "In Vivo Size Error Measurements Of Potential Liver Lesions Detected On MRI" @default.
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- W2461460138 doi "https://doi.org/10.5580/199f" @default.
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