Objective: To determine the utility of tissue harmonic imaging in evaluating cystic renal lesions and to compare these findings with conventional ultrasound guidance (USG) and CT.
Methods: Thirty patients, detected with cystic renal lesions on routine USG (over a period of 18 months from July 2004 to December 2005 at the Postgraduate Institute of Medical Education and Research Chandigarh, Chandigarh, India) were included in this study. All patients underwent a conventional gray scale ultrasound study (GSI), followed by tissue harmonic imaging (THI) sonography on the same machine (advance technology limited high definition imaging 5000). Computed tomography of abdomen was carried out within one week of the ultrasound examinations. All images were evaluated for size, number, and location of lesions. The findings of THI sonography, conventional USG and CT of abdomen were recorded in their respective proformas. The images obtained by GSI, THI, and contrast enhanced CT were also evaluated for image quality, lesion conspicuity, and fluid-solid differentiation.
Results: Tissue harmonic imaging showed better image quality in 27 of 34 lesions, improvement in lesion conspicuity was found in 27 of 34 cystic lesions, and an improved solid-fluid differentiation in 30 of 34 lesions when compared to GSI. The THI provided additional information as compared to GSI in 8 patients. The grading of CT scan was significantly higher in overall image quality (p=0.007) and lesion conspicuity (p=0.004), but was non-significant for fluid-solid differentiation (p=0.23).
Conclusion: Tissue harmonic imaging provides better image quality, lesion delineation, and superior characterization than conventional gray scale sonography.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Leveraging Optical Anisotropy of the Morpho Butterfly Wing for Quantitative, Stain-Free, and Contact-Free Assessment of Biological Tissue Microstructures.
Adv Mater
January 2025
Department of Mechanical and Aerospace Engineering, Program of Materials Science and Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA.
Changes in the density and organization of fibrous biological tissues often accompany the progression of serious diseases ranging from fibrosis to neurodegenerative diseases, heart disease and cancer. However, challenges in cost, complexity, or precision faced by existing imaging methodologies and materials pose barriers to elucidating the role of tissue microstructure in disease. Here, we leverage the intrinsic optical anisotropy of the Morpho butterfly wing and introduce Morpho-Enhanced Polarized Light Microscopy (MorE-PoL), a stain- and contact-free imaging platform that enhances and quantifies the birefringent material properties of fibrous biological tissues.
View Article and Find Full Text PDFCD137 agonism enhances anti-PD1 induced activation of expanded CD8 T cell clones in a neoadjuvant pancreatic cancer clinical trial.
iScience
January 2025
Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Successful pancreatic ductal adenocarcinoma (PDAC) immunotherapy requires therapeutic combinations that induce quality T cells. Tumor microenvironment (TME) analysis following therapeutic interventions can identify response mechanisms, informing design of effective combinations. We provide a reference single-cell dataset from tumor-infiltrating leukocytes (TILs) from a human neoadjuvant clinical trial comparing the granulocyte-macrophage colony-stimulating factor (GM-CSF)-secreting allogeneic PDAC vaccine GVAX alone, in combination with anti-PD1 or with both anti-PD1 and CD137 agonist.
View Article and Find Full Text PDFAortic valve leaflet assessment to inform novel bioinspired materials: Understanding the impact of collagen fibres on the tissue's mechanical behaviour.
J Mech Behav Biomed Mater
December 2024
Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, 2, Dublin, Ireland; Discipline of Mechanical, Manufacturing, and Biomedical Engineering, School of Engineering, Trinity College Dublin, 2, Dublin, Ireland; Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin, Ireland. Electronic address:
Aortic stenosis is a prevalent disease that is treated with either mechanical or bioprosthetic valve replacement devices. However, these implants can experience problems with either functionality in the case of mechanical valves or long-term durability in the case of bioprosthetic valves. To enhance next generation prosthetic valves, such as biomimetic polymeric valves, an improved understanding of the native aortic valve leaflet structure and mechanical response is required to provide much needed benchmarks for future device development.
View Article and Find Full Text PDFMultiscale Finite Element Modeling of Human Ear for Acoustic Wave Transmission into Cochlea and Hair Cells Fatigue Failure.
J Biomech Eng
January 2025
School of Aerospace and Mechanical Engineering, University of Oklahoma, 865 Asp Ave, Norman, OK 73019, USA.
Hearing loss is highly related to acoustic injuries and mechanical damage of ear tissues. The mechanical responses of ear tissues are difficult to measure experimentally, especially cochlear hair cells within the organ of Corti (OC) at microscale. Finite element (FE) modeling has become an important tool for simulating acoustic wave transmission and studying cochlear mechanics.
View Article and Find Full Text PDFComputational microscopy with coherent diffractive imaging and ptychography.
Nature
January 2025
Department of Physics and Astronomy, University of California, Los Angeles, Los Angeles, CA, USA.
Microscopy and crystallography are two essential experimental methodologies for advancing modern science. They complement one another, with microscopy typically relying on lenses to image the local structures of samples, and crystallography using diffraction to determine the global atomic structure of crystals. Over the past two decades, computational microscopy, encompassing coherent diffractive imaging (CDI) and ptychography, has advanced rapidly, unifying microscopy and crystallography to overcome their limitations.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!