Design and In Vivo Evaluation of a Non-Invasive Transabdominal Fetal Pulse Oximeter

DD Fong, KJ Yamashiro, K Vali… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
Objective: Current intrapartum fetal monitoring technology is unable to provide physicians
with an objective metric of fetal well-being, leading to degraded patient outcomes and …

Sensitivity analysis of transabdominal fetal pulse oximetry using MRI-based simulations

J Wu, G Satish, A Ruesch, B Jayet… - Biomedical Optics …, 2024 - opg.optica.org
Transabdominal fetal pulse oximetry offers a promising approach to improve fetal monitoring
and reduce unnecessary interventions. Utilizing realistic 3D geometries derived from MRI …

KUBAI: Sensor fusion for non-invasive fetal heart rate tracking

B Kasap, K Vali, W Qian, M Saffarpour… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Objective: Fetal heart rate (FHR) is critical for perinatal fetal monitoring. However, motions,
contractions and other dynamics may substantially degrade the quality of acquired signals …

Contextually-aware fetal sensing in transabdominal fetal pulse oximetry

DD Fong, K Vali, S Ghiasi - 2020 ACM/IEEE 11th International …, 2020 - ieeexplore.ieee.org
Transabdominal fetal pulse oximetry (TFO) is a noninvasive technique that can provide
physicians with a convenient measure of fetal oxygen saturation. This is accomplished by …

Multi-detector heart rate extraction method for transabdominal fetal pulse oximetry

B Kasap, K Vali, W Qian, WH Chak… - 2021 43rd Annual …, 2021 - ieeexplore.ieee.org
Intrapartum fetal well-being assessment relies on fetal heart rate (FHR) monitoring. Studies
have shown that FHR monitoring has a high false-positive rate for detecting fetal hypoxia …

BASS: Safe Deep Tissue Optical Sensing for Wearable Embedded Systems

K Vali, A Vafi, B Kasap, S Ghiasi - ACM Transactions on Embedded …, 2023 - dl.acm.org
In wearable optical sensing applications whose target tissue is not superficial, such as deep
tissue oximetry, the task of embedded system design has to strike a balance between two …

Robust Fetal Heart Rate Tracking through Fetal Electrocardiography (ECG) and Photoplethysmography (PPG) Fusion *

B Kasap, K Vali, W Qian, M Saffarpour… - 2023 45th Annual …, 2023 - ieeexplore.ieee.org
Fetal electrocardiogram (fECG) or photoplethysmogram (fPPG) devices are being
developed for fetal heart rate (FHR) monitoring. However, deep tissue sensing is challenged …

Estimation of fetal blood oxygen saturation from transabdominally acquired photoplethysmogram waveforms

K Vali, B Kasap, W Qian, A Vafi… - 2021 43rd Annual …, 2021 - ieeexplore.ieee.org
Transabdominal Fetal Pulse Oximetry (TFO) faces several challenges, including the
acquisition of noisy Photoplethysmogram (PPG) signals that contain a mixture of maternal …

Towards noninvasive accurate detection of intrapartum fetal hypoxic distress

B Kasap, K Vali, W Qian, HL Hedriana… - 2021 IEEE 17th …, 2021 - ieeexplore.ieee.org
Current intrapartum fetal well-being assessment is performed using electronic fetal
monitoring (EFM), technically referred to as cardiotocography (CTG), which …

Transcutaneous Discrimination of Fetal Heart Rate from Maternal Heart Rate: A Fetal Oximetry Proof-of-Concept

B Kasap, K Vali, W Qian, L Mo, ZH Chithiwala… - Reproductive …, 2024 - Springer
Intrapartum care uses electronic fetal heart rate monitoring (EFHRM) for over 50 years to
indirectly assess fetal oxygenation. However, this approach has been associated with an …