Results 1 to 10 of about 3,671,216 (244)

A Non-Conventional Review on Multi-Modality-Based Medical Image Fusion

Diagnostics, 2023
Today, medical images play a crucial role in obtaining relevant medical information for clinical purposes. However, the quality of medical images must be analyzed and improved.
Manoj Diwakar, Prabhishek Singh, Vinayakumar Ravi, Ankur Maurya   +3 more
doaj   +3 more sources

Photoacoustic spectrum analysis for spherical target size and optical property determination: A feasibility study

Photoacoustics, 2023
The photoacoustic signal generated by an optically absorbing target is determined by the spatial profile of absorbed optical energy within the target.
M. Dantuma, D.B. Gasteau, S. Manohar
doaj   +1 more source

Optical signatures of radiofrequency ablation in biological tissues

Scientific Reports, 2021
Accurate monitoring of treatment is crucial in minimally-invasive radiofrequency ablation in oncology and cardiovascular disease. We investigated alterations in optical properties of ex-vivo bovine tissues of the liver, heart, muscle, and brain ...
Pranav Lanka, Kalloor Joseph Francis, Hindrik Kruit, Andrea Farina, Rinaldo Cubeddu, Sanathana Konugolu Venkata Sekar, Srirang Manohar, Antonio Pifferi   +7 more
doaj   +1 more source

High-frame-rate contrast-enhanced ultrasound particle image velocimetry in patients with a stented superficial femoral artery: a feasibility study

European Radiology Experimental, 2022
Background Local blood flow affects vascular disease and outcomes of endovascular treatment, but quantifying it is challenging, especially inside stents.
Majorie van Helvert, Stefan Engelhard, Jason Voorneveld, Marije van der Vee, Johan G. Bosch, Michel Versluis, Erik Groot Jebbink, Michel M. P. J. Reijnen   +7 more
doaj   +1 more source

Matrix 3D ultrasound-assisted thyroid nodule volume estimation and radiofrequency ablation: a phantom study

European Radiology Experimental, 2021
Background Two-dimensional (2D) ultrasound is well established for thyroid nodule assessment and treatment guidance. However, it is hampered by a limited field of view and observer variability that may lead to inaccurate nodule classification and ...
T. Boers, S. J. Braak, M. Versluis, S. Manohar   +3 more
doaj   +1 more source

The influence of electrocardiogram-gated computed tomography reconstruction into 8 or 10 cardiac phases on cardiac-pulsatility-induced motion quantification of stent grafts in the aorta

JVS - Vascular Science, 2023
Objective: The goal of this study was to determine to what extent aortic stent graft motion quantification is comparable between electrocardiogram (ECG)-gated computed tomography (CT) scans with reconstructions into 8 and 10 cardiac phases on CT scanners
Jaimy A. Simmering, PhD, Deborah A. Zagers, MSc, Robert H. Geelkerken, PhD, Henny Kuipers, BSc, Gerben A. te Riet o.g. Scholten, MSc, Michel M.P.J. Reijnen, PhD, Cornelis H. Slump, PhD   +6 more
doaj   +1 more source

Annular Fiber Probe for Interstitial Illumination in Photoacoustic Guidance of Radiofrequency Ablation

Sensors, 2021
Unresectable liver tumors are commonly treated with percutaneous radiofrequency ablation (RFA). However, this technique is associated with high recurrence rates due to incomplete tumor ablation. Accurate image guidance of the RFA procedure contributes to
Hindrik Kruit, Kalloor Joseph Francis, Elina Rascevska, Srirang Manohar   +3 more
doaj   +1 more source

Pendant breast immobilization and positioning in photoacoustic tomographic imaging

Photoacoustics, 2021
This work describes the design, development and added value of breast-supporting cups to immobilize and position the pendant breast in photoacoustic tomographic imaging. We explain the considerations behind the choice of the material, the shape and sizes
Sjoukje M. Schoustra, Tim J.P.M. op 't Root, Rutger P. Pompe van Meerdervoort, Laurens Alink, Wiendelt Steenbergen, Srirang Manohar   +5 more
doaj   +1 more source

Differences in Cardiac-Pulsatility-Induced Displacement and Geometry Changes between the Cook ZBIS and Gore IBE: Postoperative Comparison Using ECG-Gated CTA Scans

Diagnostics, 2023
To what extent the stentgraft design of iliac branch devices (IBDs) relates to dynamic deformation is currently unknown. Therefore, this study aimed to quantify and compare displacement and geometry changes during the cardiac cycle of two common IBDs ...
Jaimy A. Simmering, Majorie van Helvert, Joost A. van Herwaarden, Cornelis H. Slump, Robert H. Geelkerken, Michel M. P. J. Reijnen   +5 more
doaj   +1 more source

Spatially compounded plane wave imaging using a laser-induced ultrasound source

Photoacoustics, 2020
This work presents spatially compounded plane wave imaging using a laser-induced ultrasound source. The plane wave source consisted of a 30 μm thick film of carbon black-doped PDMS cured on a 100 μm thick polyester substrate and presented a rectangular ...
David Thompson, Damien Gasteau, Srirang Manohar   +2 more
doaj   +1 more source