A5060343325- Medical Imaging Techniques and Applications
- Radiomics and Machine Learning in Medical Imaging
- Advanced X-ray and CT Imaging
- Neonatal Respiratory Health Research
- Radioactive element chemistry and processing
- Advanced MRI Techniques and Applications
- Cardiac Imaging and Diagnostics
- Insect Pest Control Strategies
- Radiation Dose and Imaging
- Advanced Radiotherapy Techniques
- Neuroendocrine Tumor Research Advances
- Plant Physiology and Cultivation Studies
- Radiation Detection and Scintillator Technologies
- Reproductive Biology and Fertility
- Congenital Ear and Nasal Anomalies
- Congenital Diaphragmatic Hernia Studies
- Thermal and Kinetic Analysis
- IgG4-Related and Inflammatory Diseases
- Congenital Heart Disease Studies
- Infectious Encephalopathies and Encephalitis
- Systemic Lupus Erythematosus Research
- Chemical and Physical Properties in Aqueous Solutions
- Neonatal Health and Biochemistry
- Monoclonal and Polyclonal Antibodies Research
- Effects and risks of endocrine disrupting chemicals
All India Institute of Medical Sciences
2024-2025
The University of Texas Southwestern Medical Center
2025
Southwestern Medical Center
2025
Rajendra Institute of Medical Sciences
2021-2023
Rush University
2023
Rush University Medical Center
2020-2023
Johns Hopkins University
2023
Medical College and Hospital, Kolkata
2016-2020
Institute of Post Graduate Medical Education and Research
2016-2020
Tata Main Hospital
2019
The use of radioactive materials in the United States has been tightly regulated by Nuclear Regulatory Commission and other entities for many decades. In 2015, however, Joint began to require hospital-based nuclear medicine departments conduct shielding designs evaluations material areas, mirroring established x-ray practices. NCRP Report No. 147 guides diagnostic medical shielding, but obviously cannot be used alone applications. rising demand theranostic particularly necessitates updated...
A term neonate with a stormy perinatal course, requiring prolonged mechanical ventilation, due to congenital pneumonia, complicated by secondary pulmonary arterial hypertension and non-invasive respiratory support, presented us in the fourth week of postnatal age, challenge difficulty weaning from support. The was noted have severe injury nasal bridge septum, excessive purulent secretions crusting leading recurrent block. This precluded usage masks or prongs led episodes worsening distress...
The objective of this study is to characterize the performance preclinical avalanche photodiode (APD)-based LabPET-8 TM subsystem fully integrated trimodality PET/SPECT/CT Triumph scanner using National Electrical Manufacturers Association (NEMA) NU 04-2008 protocol.The characterized parameters include spatial resolution, sensitivity, scatter fraction, counts rate and image-quality characteristics.The PET system digital APD-based detector modules with highly electronics.The assembly consists...
Using a radioimmunoassay, we evaluated the cerebrospinal fluid content of IgG, IgA, IgM, IgD, and IgE in multiple sclerosis, viral meningitis, tumors. Abnormal immunoglobulin levels occurred all conditions, reaching 13 times norm for IgM sclerosis 5 aseptic meningitis. Striking increases also with benign malignant (both primary metastatic) tumors CNS. Furthermore, immunoglobulin-protein ratio was calculated. In meningitis significant as compared to norms.
The purpose of this work was to evaluate the performance characteristics preclinical X-PET subsystem FLEX Triumph PET/CT scanner based on NU 4-2008 standards National Electrical Manufacturers Association (NEMA). <b>Methods:</b> parameters evaluated include spatial resolution, scatter fraction, count losses and random coincidences, sensitivity, image-quality characteristics. PET detector array consisted 11,520 individual bismuth germanate crystals arranged in 48 rings 180 blocks, with an...
Multimodality molecular imaging using high resolution positron emission tomography (PET) combined with other modalities is now playing a pivotal role in basic and clinical research. The introduction of PET/CT systems setting has revolutionized the practice diagnostic imaging. complementarity between intrinsically aligned anatomic (CT) functional or metabolic information provided one-stop shop possibility to use CT images for attenuation correction PET data been driving force behind success...
The energy spectrum for a cadmium zinc telluride (CZT) detector has low tail due to incomplete charge collection and intercrystal scattering. Due these solid-state effects, scatter would be overestimated if the conventional triple-energy window (TEW) method is used crosstalk corrections in CZT-based imaging systems. objective of this work develop correction (99m)Tc/(123)I dual-radionuclide dedicated cardiac SPECT system with pinhole collimators (GE Discovery NM 530c/570c).A tailing model was...
Conventional 2-dimensional planar imaging of <sup>123</sup>I-metaiodobenzylguanidine (<sup>123</sup>I-mIBG) is not fully quantitative. To develop a more accurate quantitative approach, we investigated dynamic SPECT with kinetic modeling in healthy humans to obtain the myocardial volume distribution (<i>V</i><sub>T</sub>) for <sup>123</sup>I-mIBG. <b>Methods:</b> Twelve underwent 5 serial 15-min scans at 0, 15, 90, 120, and 180 min after bolus injection <sup>123</sup>I-mIBG on hybrid cadmium...
Abstract Context The reproductive axis is controlled by a network of gonadotropin-releasing hormone (GnRH) neurons born in the primitive nose that migrate to hypothalamus alongside axons olfactory system. observation congenital anosmia (inability smell) often associated with GnRH deficiency humans led prevailing view depend on structures reach brain, but this hypothesis has not been confirmed. Objective objective work determine potential for normal function setting completely absent internal...
Positron Emission Tomography (PET) has emerged as a valuable molecular imaging modality for quantitative measurement of biochemical processes in vivo the clinical and preclinical domains. However, PET suffers from various physical degrading factors including photon attenuation, which can be corrected using CT-based attenuation correction (CTAC) on combined PET/CT scanners. The map is calculated by converting CT numbers derived low-energy polyenergetic x-ray spectra to linear coefficients at...
Abstract Protein migration distances on two‐dimensional (2‐D) gels were measured in mm (absolute) and relative internal standard units using creatine kinase carbamylation trains (x‐axis) as charge (CK‐C r ) scale rat heart extract lines molecular weight (M (y‐axis). Variation absolute protein location generally increases with increasing distance both axes 6–12 5–11 for selected spots the x‐ y‐axis respectively; variation is significantly less, ranging from 0.9–2.5 3–4 data are seven...
We compared pulmonary capillary filtration coefficients (Kf,c) using measurements of transcapillary rates based on laser densitometry perfusate hematocrit changes (Jy,l) and gravimetric measurement the rate lobe weight gain (delta Wt/delta t) after an increase in pressure (Pc) isolated autologous blood-perfused dog lungs. Although increased at a that decreased with time, densitometric was relatively constant over time. Kf,c values were calculated milliliters per minute centimeter water 100 g...
A new image processing method is developed to process two-dimensional ultrasound B-scan echo images which makes possible the delineation of displacement cardiac boundaries for precise assessment infarcted/ischemic regions. An economic system designed purpose. algorithm compute direction and amplitude vector at any point in image, given two frames different time instants, developed. The performance examined with synthesized images. Displacement amplitudes along left ventricle are plotted...
We developed a radioimmunoassay procedure in which we used an antibody monospecific for pancreatic acinar antigen, to sensitively and specifically test the presence of subclinical (latent) alcoholic pancreatitis. The antigen was isolated, purified, partially characterized. Results testing appropriate populations patients support idea that chronic alcoholism is associated with chronic, damage pancreas concomitant continuous release protein into peripheral circulation, where it can be detected...
An electron microscopic and diffraction examination has been made of freshly precipitated aged hydrous thoria gels prepared by (a) slow precipitation at room temperature diffusion CO2 gas into thorium nitrate solution, (b) rapid precipitaticn the addition ammonium hydroxide, (c) hydrolysis ThCl4 80–90°, (d) 180° in sealed glass tubes. Hydrous are essentially “amorphous”, but age under water several months, 100 ° a few days, to form anhydrous, cubic ThO2. Hydrolysis solutions 80° or yields...