نتایج جستجو برای: observer variation
تعداد نتایج: 323330 فیلتر نتایج به سال:
PURPOSE To develop a tri-modality image fusion method for better target delineation in image-guided radiotherapy for patients with brain tumors. METHODS A new method of tri-modality image fusion was developed, which can fuse and display all image sets in one panel and one operation. And a feasibility study in gross tumor volume (GTV) delineation using data from three patients with brain tumor...
Archaeologists are increasingly in need of quantitative measures of stone artefact retouch. Existing techniques fail to provide a generic measure of retouching for all chipped stone artefacts. A fast and reliable index is proposed which measures retouch in terms of the invasiveness of flake scars on the surfaces of complete stone artefacts. Unlike other measures, the index of invasiveness is we...
1. Transcranial Doppler measurements of the mean blood flow velocity and the resistance index in the middle cerebral artery are used to assess cerebral haemodynamics. The prerequisite for the use of these parameters in clinical pharmacology studies is an evaluation of their repeatability and spontaneous variation with time. 2. Repeatability of transcranial Doppler measurements of mean blood flo...
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