A5018168347- Advanced Radiotherapy Techniques
- Hepatocellular Carcinoma Treatment and Prognosis
- Lung Cancer Diagnosis and Treatment
- Video Surveillance and Tracking Methods
- Radiomics and Machine Learning in Medical Imaging
- Thyroid Cancer Diagnosis and Treatment
- Physics of Superconductivity and Magnetism
- Advanced Condensed Matter Physics
- Management of metastatic bone disease
- Thyroid and Parathyroid Surgery
- Glioma Diagnosis and Treatment
- Image Enhancement Techniques
- Endometrial and Cervical Cancer Treatments
- Advanced Neural Network Applications
- Human Pose and Action Recognition
- Gastric Cancer Management and Outcomes
- Magnetism in coordination complexes
- Ocular Oncology and Treatments
- Head and Neck Anomalies
- Mechanical Circulatory Support Devices
- Infrared Thermography in Medicine
- Cardiac Arrest and Resuscitation
- Face recognition and analysis
- AI in cancer detection
- Colorectal Cancer Screening and Detection
Johns Hopkins Medicine
2023-2025
Johns Hopkins University
2023-2025
MedStar Georgetown University Hospital
2021-2022
MedStar Washington Hospital Center
2021-2022
Georgetown University
2021-2022
MedStar Health
2022
American College of Surgeons
2022
Dongguk University
2017-2021
Seoul National University
2021
Chinese Academy of Medical Sciences & Peking Union Medical College
2020
The objective of this study was to evaluate the efficacy and safety stereotactic body radiation therapy (SBRT) as a local salvage treatment after incomplete transarterial chemoembolization (TACE) for inoperable hepatocellular carcinoma (HCC).The main eligibility criteria were greatest tumor dimension (LD sum) <10 cm, HCC, response TACE. Prescribed SBRT doses up 60 gray (Gy) in 3 fractions, but reduced until normal tissue constraints allowed.Between May 2008 February 2011, 50 patients...
Computer-aided diagnosis systems have been developed to assist doctors in diagnosing thyroid nodules reduce errors made by traditional methods, which are mainly based on the experiences of doctors. Therefore, performance such plays an important role enhancing quality a task. Although there state-of-the art studies regarding this problem, handcrafted features, deep or combination two, their performances still limited. To overcome these problems, we propose ultrasound image-based malignant...
Abstract Background and Objectives This study evaluated the treatment result of high dose stereotactic body radiation therapy (SBRT) for colorectal oligometastases. Methods Between 2003 2009, 41 patients with 50 lesions confined to one organ from cancer (CRC) treated SBRT ≥45 Gy were retrospectively reviewed. Lymph nodes (LNs) (18 patients) most frequent sites followed in order by lung (12) liver (11). doses ranged 45 60 three fractions (median 48 Gy). The cumulative gross tumor volume (GTV)...
Purpose .We report the results of a retrospective study stereotactic body radiation therapy (SBRT) using CyberKnife for localized prostate cancer.The focused on safety and feasibility this treatment modality. Materials methods . Between October 2002 December 2007, 44 patients suf fering from adenocarcinoma were treated with SBRT at Korea Cancer Center Hospital. The divided into 3 groups: low-risk group (5 patients), an intermediate-risk (10 high-risk (29 patients). Five received 32 Gy in 4...
In recent years, numerous studies have been undertaken regarding person re-identification (ReID), an important issue for intelligent surveillance systems. Person ReID, however, is extremely difficult problem because of variables such as different viewpoints and poses, varying lighting in regions images that captured from remote distances. A majority the performed visible-light camera-based which can be used only a limited environment owing to characteristics camera are considerably dependent...
Recently, thermal cameras are being widely used in various fields, such as intelligent surveillance, biometrics, and health monitoring. However, the high cost of poses a challenge terms purchase. Additionally, images have an issue pertaining to blurring caused by object movement, camera focus settings. There been very few studies on image restoration centered around address problems. Moreover, it is important increase processing speed methods jointly conduct with action recognition tracking...
<i>Objective:</i> To determine the feasibility of stereotactic body radiotherapy (SBRT) using 3 fractions for isolated colorectal lung metastases. <i>Methods:</i> From June 2003 to December 2006, 13 cases pulmonary metastasis from cancer were treated by SBRT due an inoperable state (7 patients), or patient’s refusal undergo surgical excision (6 patients). All patients underwent chemotherapy salvage treatment. doses ranged 39 51 Gy in fractions. Nine had a solitary...
Human identification using camera-based surveillance systems is a challenging research topic, especially in cases where the human face not visible to cameras and/or when humans captured on have no clear visual identity owing environments with low-illumination. With development of deep learning algorithms, studies that are based gait convolutional neural networks (CNNs) and long short-term memory (LSTM) achieved promising performance for identification. However, CNN LSTM-based methods...
The spin lattice appropriate for azurite Cu(3)(CO(3))(2)(OH)(2) was determined by evaluating its exchange interactions on the basis of first principles density functional calculations. It is found that not well described as an isolated diamond chain with no frustration, but better modeled a two-dimensional in which chains frustration interact through interchain ab-plane. Our analysis indicates magnetic properties at low temperatures can be approximated two independent contributions, i.e.,...
The aim of this study was to investigate whether stereotactic body radiotherapy (SBRT) can salvage gastric cancer patients with para-aortic lymph node (PALN) recurrence. From January 2003 December 2006, 7 were treated for isolated PALN recurrence from after curative resection. Follow up durations ranged 19 33 months (median; 26 months), and SBRT doses 45 Gy 51 (median 48 Gy) in 3 fractions. Disease progression-free overall survivals toxicities recorded. Response treatment assessed by...
Preclinical studies support an antitumor effect of metformin. However, clinical have conflicting results and metformin's remains controversial. The aim this study was to evaluate on outcomes in diabetic patients with pancreatic cancer treated curative resection.A total 764 underwent resection, met none the exclusion criteria, were prescribed oral hypoglycemic agents. cancer-specific survival (5-year, 31.9% vs. 22.2%, p < 0.001) significantly higher 530 metformin users than 234 non-users....
Iris recognition is one of the non-contact biometric identification methods that are hygienic and highly accurate. involves using iris images obtained by a near-infrared (NIR) camera or visible light camera. A clear image can be when an NIR used, but it requires illuminator in addition to performed with built-in device which also has advantage obtaining three-channel containing color information. Accordingly, studies being conducted on from face taken high-resolution smartphones. However,...
The magnetic properties of ${\text{BiCu}}_{2}{\text{PO}}_{6}$ have been analyzed by means magnetic-susceptibility and inelastic neutron-scattering measurements on powder samples evaluating the spin-exchange interactions basis density-functional calculations simulating neutron scattering in terms parameters. exhibits described two-leg spin ladder with strong frustration along each leg chain has a gapped quantum singlet ground state excited states, showing an incommensurate dispersion arising...
We investigated the magnetic and structural properties of quasi-one-dimensional 3${d}^{1}$ quantum chain system TiPO${}_{4}$ ($J~$ 965 K) by susceptibility, heat capacity, electron spin resonance, x-ray diffraction, nuclear resonance (NMR) measurements, density functional theory (DFT) calculations. undergoes two magnetostructural phase transitions, one at 111 K other 74 K. Below K, NMR detects different $^{31}\mathrm{P}$ signals susceptibility vanishes, while DFT calculations evidence a bond...
A thorough crystal structure determination at very low temperature of (CuCl)LaNb₂O₇, originally proposed as a spin-1/2 square-lattice antiferromagnet, is reported thanks to the use single-crystal x-ray diffraction and powder neutron diffraction. State-of-the-art calculations (maximum entropy method) reveal that (CuCl)LaNb₂O₇ orthorhombic with Pbam symmetry. First-principles demonstrate dominant magnetic interactions are antiferromagnetic between fourth nearest neighbors Cu-Cl-Cl-Cu exchange...
A number of studies have been conducted to enhance the pedestrian detection accuracy intelligent surveillance systems. However, detecting pedestrians under outdoor conditions is a challenging problem due varying lighting, shadows, and occlusions. In recent times, growing performed on visible light camera-based systems using convolutional neural network (CNN) in order make process more resilient such conditions. cameras still cannot detect during nighttime, are easily affected by shadows...
Although various studies based on thermal images have been conducted, few focused the simultaneous extraction of joints and skeleton information an object from a image, performed human action recognition using this information. Unlike in case visible light images, performing joint detection generation often leads to complete disappearance spatial such as joints. In case, it is extremely difficult extract object. Moreover, accuracy significantly reduced owing issue. Therefore, new method...
The early diagnosis of various gastrointestinal diseases can lead to effective treatment and reduce the risk many life-threatening conditions. Unfortunately, small lesions are undetectable during early-stage examination by medical experts. In previous studies, deep learning-based computer-aided tools have been used make a significant contribution diseases. However, most these methods were designed detect limited number diseases, such as polyps, tumors, or cancers, in specific part human...
Competing magnetic interactions in low-dimensional quantum magnets can lead to the exotic ground state with fractionalized excitations. Herein, we present our results on an S = 5/2 quasi-one-dimensional spin system Bi3FeMo2O12. The structure of Bi3FeMo2O12 consists very well separated, infinite zig-zag chains. observation a broad maximum around 10 K susceptibility suggests presence short-range correlations. Magnetic data do not fit S=5/2 uniform chain model due 2nd nearest-neighbor coupling...