Publications by authors named "V M Kiran"
Carotid Pressure Wave Separation Analysis Using Multi-Rayleigh Flow Model.
IEEE Trans Biomed Eng
December 2024
Background: Wave separation analysis (WSA) performed at the common carotid artery (CCA) reveals insights into cerebral vascular pathophysiology; however, the conventional WSA (WSAREF) necessitates the availability of both pressure and flow waveforms measured from the same arterial site.
Objective: We propose a method for performing WSA at CCA using a single pulse waveform (WSAm-RAY), by modelling the shape of the CCA flow using multi-Rayleigh curves. The WSAm-RAY reduces the measurement complexity, by modelling the flow waveform shape, targeted at scenarios with limited resources, where comprehensive equipment, specialized personnel and hospital settings are often lacking.
Introduction: Alkaptonuria is a metabolic disorder due to accumulation of homogentisic acid, leading to destruction of major joints. Very few cases of ochronosis with shoulder involvement have been reported in literature.
Case Report: We report a 31-year-old male who presented with shoulder pain for 4 months.
Objective: The number of patients during disastrous conditions was high, and triage is essential. In chaotic circumstances, orthopedic surgeons can also struggle with patient selection, not only for surgical selection but also for the necessity of hospitalization. So, the performance of the Injury Severity Score, New Injury Severity Score, and Trauma and Injury Severity Score was compared in victims who were struck under the wreckage and had fractures due to the Kahramanmaras Earthquake.
View Article and Find Full Text PDFBackground: Superparamagnetic properties and excitation independence have been incorporated into carbon-decorated manganese ferrite nanodots (MnFe@C) to introduce an economical and safer multimodal agent for use in both T1-T2 MRI and fluorescence-based imaging to replace the conventional highly toxic heavy metal contrast agents.
Methods: The surface conjugation of 8-anilino-1-naphthalenesulfonate (ANS) to MnFe@C nanodots (ANS-MnFe@C) enhances both longitudinal and transverse MRI relaxation, improves fluorescence for optical imaging, and increases protein detection sensitivity, showing higher multimodal efficacy in terms of molar relaxivity, radiant efficiencies, and fluorescence sensitivity compared to MnFe@C.
Results: The band gap energy was determined using Tauc's equation to be 3.
Article Synopsis
- Charcot arthropathy is a joint condition characterized by significant bone degeneration, often resulting from microtrauma that affects articular nerves, with syringomyelia being a common cause in the upper extremities.
- A case study of a 64-year-old man showed painless swelling and deformity in his right wrist, with imaging revealing degenerative changes and conditions like Type II Chiari malformation and myelopathy.
- Diagnosing wrist Charcot arthropathy is complex and requires excluding common arthritis causes such as rheumatoid arthritis and tuberculosis, and a comprehensive neurological examination is essential to identify other possible underlying issues like diabetes or tabes dorsalis.