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Start Over Author "Lakhani A" Publisher elsevier b.v.
432 results on '"Lakhani A"'

9. The Transatlantic Recommendations for Prostate Gland Evaluation with Magnetic Resonance Imaging After Focal Therapy (TARGET): A Systematic Review and International Consensus Recommendations

Author

Light, Alexander, Mayor, Nikhil, Cullen, Emma, Kirkham, Alex, Padhani, Anwar R., Arya, Manit, Bomers, Joyce G.R., Dudderidge, Tim, Ehdaie, Behfar, Freeman, Alex, Guillaumier, Stephanie, Hindley, Richard, Lakhani, Amish, Pendse, Douglas, Punwani, Shonit, Rastinehad, Ardeshir R., Rouvière, Olivier, Sanchez-Salas, Rafael, Schoots, Ivo G., Sokhi, Heminder K., Tam, Henry, Tempany, Clare M., Valerio, Massimo, Verma, Sadhna, Villeirs, Geert, van der Meulen, Jan, Ahmed, Hashim U., and Shah, Taimur T.

Published
2024
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35. The Los Angeles motor scale (LAMS) is independently associated with CT perfusion collateral status markers.

Author

Lakhani, Dhairya A., Mehta, Tejas R., Balar, Aneri B., Koneru, Manisha, Wen, Sijin, Ozkara, Burak Berksu, Caplan, Justin, Dmytriw, Adam A., Wang, Richard, Lu, Hanzhang, Hoseinyazdi, Meisam, Nabi, Mehreen, Mazumdar, Ishan, Cho, Andrew, Chen, Kevin, Sepehri, Sadra, Hyson, Nathan, Xu, Risheng, Urrutia, Victor, and Luna, Licia

Abstract

• After adjusting for age, sex, ASPECTS, tPA, premorbid mRS, admission NIH stroke scale, prior history of TIA, stroke, atrial fibrillation, diabetes mellitus, hyperlipidemia, heart disease and hypertension, admission LAMS was found to be independently associated with CBV Index (adjusted OR:0.82, p < 0.01). • After adjusting for age, sex, ASPECTS, tPA, premorbid mRS, admission NIH stroke scale, prior history of TIA, stroke, atrial fibrillation, diabetes mellitus, hyperlipidemia, heart disease and hypertension, admission LAMS was found to be independently associated with and HIR (adjusted OR:1.70, p < 0.05). • Admission LAMS is independently associated with CTP CS markers, CBV index and HIR. This finding suggests that LAMS may also provide an indirect estimate of CS, among other factors. The Los Angeles Motor Scale (LAMS) is an objective tool that has been used to rapidly assess and predict the presence of large vessel occlusion (LVO) in the pre-hospital setting successfully in several studies. However, studies assessing the relationship between LAMS score and CT perfusion collateral status (CS) markers such as cerebral blood volume (CBV) index, and hypoperfusion intensity ratio (HIR) are sparse. Our study therefore aims to assess the association of admission LAMS score with established CTP CS markers CBV Index and HIR in AIS-LVO cases. In this prospectively collected, retrospectively reviewed analysis, inclusion criteria were as follows: a) CT angiography (CTA) confirmed anterior circulation LVO from 9/1/2017 to 10/01/2023, and b) diagnostic CT perfusion (CTP). Logistic regression analysis was performed to assess the relationship between admission LAMS with CTP CS markers HIR and CBV Index. p ≤ 0.05 was considered significant. In total, 285 consecutive patients (median age = 69 years; 56 % female) met our inclusion criteria. Multivariable logistic regression analysis adjusting for sex, age, ASPECTS, tPA, premorbid mRS, admission NIH stroke scale, prior history of TIA, stroke, atrial fibrillation, diabetes mellitus, hyperlipidemia, coronary artery disease and hypertension, admission LAMS was found to be independently associated with CBV Index (adjusted OR:0.82, p < 0.01), and HIR (adjusted OR:0.59, p < 0.05). LAMS is independently associated with CTP CS markers, CBV index and HIR. This finding suggests that LAMS may also provide an indirect estimate of CS. [ABSTRACT FROM AUTHOR]

Published
2024
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50. Complex dielectric and impedance analysis in Dy1-XPrXMnO3 compounds: Partial substitution effects.

Author

Lakhani, Pratik, Solanki, Pankaj, Vala, Mayur, Siddhpura, Paresh, Dhruv, Dhananjay, Sooraj, K.P., Markna, J.H., and Kataria, Bharat

Subjects
*CRYSTAL grain boundaries, *DIELECTRICS, *DIELECTRIC properties, *CHEMICAL bond lengths, *DIELECTRIC relaxation, *X-ray diffraction
Abstract

Synthesis and characterization of single phasic Dy 1-x Pr x MnO 3 (DPMO) ceramic samples through solid-state reaction (SSR) method are reported in present study. XRD analysis confirmed the structural formation of DPMO and revealed lattice changes induced by Pr substitution that affect JT-distortion and tilting of MnO 6 octahedra. Fine-grained microstructures with a micrometre-sized grain size were observed using FESEM images, which increased with increasing Pr concentration. The variation of activation energy in DPMO was found to be induced by modification in Mn–O bond distances. The dielectric behaviour of DPMO was significantly enhanced, which was explained using the UDR model fitting. Impedance analysis confirmed the existence of non-Debye type relaxation and negligible electronic polarization mechanisms in all DPMO samples. With the increase in temperature, a reduction in the magnitude of Z' was observed, indicating a decrease in the resistance of contributing electroactive components such as grains, grain boundaries, and electrode interfaces. Electric modulus studies revealed the existence of grain and grain boundary relaxation processes throughout the studied frequency and temperature range in DPMO compounds. Overall, the study provides deep insights into the effect of Pr substitution on the structural, electrical, and dielectric properties of DPMO and highlights the potential of DPMO for future electronic and energy device applications. [ABSTRACT FROM AUTHOR]

Published
2024
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