کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5124176 1378440 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Three-dimensional Vocal Tract Morphology Based on Multiple Magnetic Resonance Images Is Highly Reproducible During Sustained Phonation
ترجمه فارسی عنوان
مورفولوژی سه بعدی آووکات بر اساس تصاویر رزونانس مغناطیسی چندگانه در طول آواز مستمر قابل بازیابی است
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی بیماری های گوش و جراحی پلاستیک صورت
چکیده انگلیسی

SummaryObjectivesThe extraction of a three-dimensional (3D) morphology of the human vocal tract (VT) from magnetic resonance imaging (MRI) during sustained phonation can be used for various analyses like numerical simulations or creating physical models. The precision of visualizing techniques nowadays allows for very targeted acoustical simulation evaluating the influence of subsections of the VT for the transfer function. The aim of the study was to assess the accuracy of the 3D geometry based on MRI data in repetitive trials.Study DesignThis is a prospective study.MethodsFour experienced singers underwent an MRI while repeating a specific vocal task 20 times consecutively. Audio recordings were made by means of an optical microphone. Images were restacked and subsections of the VT were segmented on multi-image-based cross sections using a semiautomatic algorithm. Different volume and area measures were evaluated.ResultsA high reproducibility of the morphologic data based on multiple images by means of the applied segmentation method could be shown with an overall variation of around 8%.Conclusions3D modeling of the VT during sustained phonation involves a complex experimental setting and elaborate image processing techniques. Functional comparative analysis or acoustical simulations based on such data should take the found variability into account.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Voice - Volume 31, Issue 4, July 2017, Pages 504.e11-504.e20
نویسندگان
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