Jen-Fang Yu

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BACKGROUND Minimally invasive surgeries of the soft palate have emerged as a less-invasive treatment for habitual snoring. To date, there is only limited information available comparing the effects of snoring sound between different minimally invasive surgeries in the treatment of habitual snoring. OBJECTIVE To compare the efficacy of palatal implant and(More)
Snoring sounds generated by different vibrators of the upper airway may be useful indicators of obstruction sites in patients with obstructive sleep apnea hypopnea syndrome (OSAHS). This study aimed to investigate associations between snoring sounds, obstruction sites, and surgical responses (≥50% reduction in the apnea-hypopnea index [AHI] and <10(More)
During dental treatments, patients may experience negative emotions associated with the procedure. This study was conducted with the aim of using functional magnetic resonance imaging (fMRI) to visualize cerebral cortical stimulation among dental patients in response to auditory stimuli produced by ultrasonic scaling and power suction equipment. Subjects (n(More)
BACKGROUND To obtain magnetic resonance images of the in-vivo human tympanic membrane to avoid radiation exposure. METHODS Images of the in-vivo human tympanic membrane were obtained by magnetic resonance imaging (MRI). The differences in resolution of the images obtained by multi slice single echo (MSSE) and 3-dimentional (3D) SNAP sequences were then(More)
OBJECTIVE This study investigated the correlation of gain distribution and the interior shape of the human external ear canal. STUDY DESIGN Cross-sectional study of gain measurement at the first bend and second bend. SETTING Chang Gung Memorial Hospital and Chang Gung University. SUBJECTS AND METHODS There were 15 ears in patients aged between 20 and(More)
Sodium is one of the essential indicators of cell viability in vivo. Regarding extant literature, sodium MRI is widely employed for various studies, including research on tumors, strokes, and neurocognition, because it can non-invasively provide data of physiological metabolism in vivo. Currently, strokes are among the 3 leading causes of death worldwide,(More)
A new type of electromagnetic vibration transducer designed to be placed onto the tympanic membrane was developed. The actuator consisted of two photodiodes, two permanent magnets, an aluminum ring, two opposing wound coils, a latex membrane and a Provil Novo membrane. An optic probe was designed to allow sound and light signals to enter the ear canal,(More)
Human ear canals cannot be measured directly with existing general measurement tools. Furthermore, general non-contact optical methods can only conduct simple peripheral measurements of the auricle and cannot obtain the internal ear canal shape-related measurement data. Therefore, this study uses the computed tomography (CT) technology to measure the(More)