A5054227457- Ear Surgery and Otitis Media
- Surgical Simulation and Training
- Soft Robotics and Applications
- Hearing, Cochlea, Tinnitus, Genetics
- Augmented Reality Applications
- Head and Neck Surgical Oncology
- Vestibular and auditory disorders
- Hearing Loss and Rehabilitation
- Advanced Vision and Imaging
- Anatomy and Medical Technology
- Facial Nerve Paralysis Treatment and Research
- Advanced Image Processing Techniques
- Meningioma and schwannoma management
- Tracheal and airway disorders
- Ear and Head Tumors
- Sinusitis and nasal conditions
- Nasal Surgery and Airway Studies
- Head and Neck Cancer Studies
- Voice and Speech Disorders
- Ophthalmology and Eye Disorders
- Noise Effects and Management
- Cerebrovascular and Carotid Artery Diseases
- Teleoperation and Haptic Systems
- Cleft Lip and Palate Research
- Ultrasound Imaging and Elastography
Johns Hopkins Medicine
2018-2025
Johns Hopkins University
2018-2025
Johns Hopkins Hospital
2024
Cochlear (United States)
2023
Cochlear (Australia)
2022
Prevent Blindness
2021
Research to Prevent Blindness
2021
Harvard University
2014-2018
Massachusetts Eye and Ear Infirmary
2015-2018
Facial Plastics Surgery Associates
2017
Stereo depth estimation relies on optimal correspondence matching between pixels epipolar lines in the left and right images to infer depth. In this work, we revisit problem from a sequence-to-sequence perspective replace cost volume construction with dense pixel using position information attention. This approach, named STereo TRansformer (STTR), has several advantages: It 1) relaxes limitation of fixed disparity range, 2) identifies occluded regions provides confidence estimates, 3)...
We report the fabrication and characterization of a prototype polyvinylidene fluoride polymer-based implantable microphone for detecting sound inside gerbil human cochleae. With current configuration amplification, signal-to-noise ratios were sufficiently high normally occurring pressures frequencies (ear canal >50–60 dB SPL 0.1–10 kHz), though 10 to 20 poorer than some hearing aid microphones. These results demonstrate feasibility devices as microphones development totally cochlear...
Abstract Objective Preoperative planning for otologic or neurotologic procedures often requires manual segmentation of relevant structures, which can be tedious and time‐consuming. Automated methods segmenting multiple geometrically complex structures not only streamline preoperative but also augment minimally invasive and/or robot‐assisted in this space. This study evaluates a state‐of‐the‐art deep learning pipeline semantic temporal bone anatomy. Study Design A descriptive network. Setting...
Abstract Objectives/Hypothesis: To characterize fundamental late tissue effects in the human vocal fold following radiation therapy. develop a murine model of fibrosis order to ultimately both treatment and prevention paradigms. Design: Translational study using archived fresh irradiated tissue. Methods: 1) Irradiated from patients undergoing laryngectomy for loss function was identified pathology archives. Histomorphometry, immunohistochemistry, whole‐genome microarray, as well real‐time...
Real-time intraoperative guidance during minimally invasive neurosurgical procedures (e.g., endonasal transsphenoidal surgery) is often limited to endoscopy and CT-guided image navigation, which can be suboptimal at locating underlying blood vessels nerves. Accidental damage these critical structures have severe surgical complications, including patient blindness death. Photoacoustic was previously proposed as a method prevent accidental injury. While the technique remains promising,...
Hypothesis: An augmented reality (AR) platform using a head mounted display (HMD) can successfully and register virtual computerized tomography (CT) data to corresponding real world anatomy fiducial markers. Background: AR is growing field in surgical planning, has been used by this group aide orthopedic surgery applications. Intraoperative registration of preoperative CT images could improve identification critical anatomical structures during lateral skull base surgery. Methods: based HMD...
Objective This study investigates the accuracy of an automated method to rapidly segment relevant temporal bone anatomy from cone beam computed tomography (CT) images. Implementation this segmentation pipeline has potential improve surgical safety and decrease operative time by augmenting preoperative planning interfacing with image‐guided robotic systems. Study Design Descriptive predicted segmentations. Setting Academic institution. Methods We have developed a computational based on...
Teprotumumab is a fully human IgG1 monoclonal antibody against insulin-like growth factor-1 receptor (IGF-1R). It has been approved by the FDA to treat thyroid eye disease (TED) reducing extraocular muscle and orbital fat volume. In clinical trials, hearing loss was noted as side effect in 7 12% of patients, but no formal audiometric investigations these patients were reported. Furthermore, manufacturer offer guidelines for monitoring. This case report first describe sensorineural (SNHL)...
Use microscopic video-based tracking of laryngeal surgical instruments to investigate the effect robot assistance on instrument tremor.
Abstract Objectives/Hypothesis: To establish the effects changing population demographics in United States are having on general practice otolaryngologists. Study Design: Retrospective analysis of 131,070 consecutive new patient visits at a large private otolaryngology group from 2004 to 2010. Methods: Billing records for 2010 were reviewed. Analysis age, diagnosis, and year presentation was completed determine changes frequencies diagnoses stratified by age groups. Predictive performed...
Objectives Microsurgical techniques are essential for vessel anastomosis in free flap reconstructive surgery. However, teaching these skills intraoperatively is difficult. The chicken thigh microvascular model a high‐fidelity that has been previously validated to differentiate between skill levels of surgeons. This study aims determine if this objectively improves microsurgical skills. Study Design Validation Methods Thirteen residents were given tutorial on and asked perform anastomoses the...
To validate an intracochlear piezoelectric sensor for its ability to detect pressure and function as a microphone fully implantable cochlear implant.A polyvinylidene fluoride (PVDF) was inserted into human fresh cadaveric round window at varying depths. An external sound stimulus applied the auditory canal (EAC). EAC pressure, stapes velocity, voltage output were recorded.The PVDF able response acoustic input EAC. The frequency of measured with similar that EAC, expected phase delay middle...
Temporally consistent depth estimation is crucial for online applications such as augmented reality. While stereo has received substantial attention a promising way to generate 3D information, there relatively little work focused on maintaining temporal stability. Indeed, based our analysis, current techniques still suffer from poor consistency. Stabilizing temporally in dynamic scenes challenging due concurrent object and camera motion. In an setting, this process further aggravated because...
Education and debateEthical dilemma Should doctors reconstruct the vaginal introitus of adolescent girls to mimic virginal state?In some ethnic communities women must be virgins when they marry.These cultural traditions can raise difficult issues for are faced with requests by young from immigrant families their hymens.In this ethical debate Dutch who carry out procedure, a British gynaecologist, senior lecturer in child health, two ethicists, psychiatrist give views. Who wants procedure why
(1) Determine the frequency of nontraditional sentinel lymph node (SLN) locations in cutaneous head and neck malignancy (2) determine level IIB SLNs malignancy.Case series with chart review.Tertiary academic hospital.In total, 145 consecutive biopsy (SLNB) specimens for malignancies were reviewed from 2007 to 2015. Nodal regions categorized into levels I V, parotid, external jugular (EJ), perifacial, suboccipital, postauricular regions. Primary divided scalp, forehead, cheek, ear, neck,...