Publications by authors named "Vivek Baghel"
Aim And Objective: The objective of this study was to optimize the threshold for discrete cosine transform (DCT) coefficients for near-lossless compression of Tc-99 m Dimercaptosuccinic acid (DMSA) scan images using discrete cosine transformation.
Materials And Methods: Two nuclear medicine (NM) Physicians after reviewing several Tc-99 m DMSA scan images provided 242 Tc-99 m DMSA scan images that had scar. These Digital imaging and communication in medicine (DICOM) images were converted in the Portable Network Graphics (PNG) format.
Introduction: Wavelet transforms of an image result in set of wavelet coefficients. Thresholding eliminates insignificant coefficients while retaining the significant ones (resulting in matrix having few nonzero elements that need to be stored). The compressed image is reconstructed by applying inverse wavelet transform.
View Article and Find Full Text PDFPyomyositis is an infective involvement of systemic skeletal muscles. We discuss the case of 43-year-old male who presented with quadriparesis, anemia, and hypercalcemia, leading to suspicion of multiple myeloma, and on FDG PET-CT, incidentally, pyomyositis was found. FDG PET-CT thus helped in diagnosing an occult infection which helped in the treatment of the patient.
View Article and Find Full Text PDFIntroduction: In this study, the optimal input parameters point spread function (PSF) and the number of iterations of the Richardson-Lucy algorithm were experimentally determined to restore Tc-99 m methyl diphosphonate (MDP) whole-body bone scan images.
Materials And Methods: The experiment was performed on 60 anonymized Tc-99 m MDP whole-body bone scan images. Ten images were used for estimating the optimum value of PSF and the number of iterations to restore scintigraphic images.
Objective: This study was undertaken to evaluate the tau distribution patterns in patients with amnestic mild cognitive impairment (aMCI) using PET radiotracer F-18 ML-104.
Materials And Methods: Thirty patients, clinically diagnosed as aMCI [mini mental state evaluation ≥24] in the neurology or geriatric memory clinics, were included in the study. Each aMCI patient underwent F-18 fluorodeoxyglucose and F-18 ML-104 tau PET.
Aim: In this study, we investigated the relationship of cerebral tau deposition (F-tau-AD-ML 104 PET/CT) with glucose metabolism (F-FDG PET/CT) and cognitive function in patients with Alzheimer disease (AD).
Patients And Methods: Seventy subjects (Mini Mental State Examination [MMSE] score <18 = 37 [AD]; MMSE score, 18-24 = 16 [early AD]) and 17 controls were included in this study. All participants underwent detailed neurological and neuropsychological evaluation, followed by F-tau-AD-ML 104 and F-FDG PET/CT imaging.
Article Synopsis
- - Bone scintigraphy images can sometimes have a high-intensity area that makes it difficult to interpret due to loss of detail, prompting an investigation into the use of an intensity-transformation (IT) function to enhance image clarity.
- - Researchers processed 40 images using an IT function with varying slopes to determine which adjustments produced the most diagnostically useful images, as assessed by experienced physicians.
- - Results showed that using a standardized slope of 8 significantly improved the quality of the images, making them easier to diagnose, with a statistically significant enhancement (p < 0.001).