Results 141 to 150 of about 2,215,491 (268)

Predictive factors for extracorporeal shockwave lithotripsy success in ureteric stones, does skin-stone distance and hounsfield unit matter? [PDF]

, 2012
OBJECTIVE: To evaluate the usefulness of measuring stone skin distance and stone attenuation values by non-contrast computed tomography for predicting treatment outcome of ureteric stones by extracorporeal shockwave lithotripsy (ESWL). PATIENT AND METHOD
Ho, KL, Fu, KF, Yiu, MK, Wong, MH, Tsang, CF   +4 more
core  

Leakage‐Controlled Evaluation of Pixel‐Level MRI–sCT Fusion Reveals a Quality–Performance Mismatch in Brain Tumour Classification

Vector: The Journal of Engineering, Volume 2027, Issue 1, January/December 2027.
This study presents a leakage‐free evaluation of pixel‐level MRI–synthetic CT fusion for brain tumour classification using EfficientNet‐B0, image‐quality metrics, statistical testing and Grad‐CAM explainability. The results show that although fusion methods improved several image‐quality measures, none outperformed MRI‐only classification in accuracy ...
Muazzam Ali, Muhammad Usman Hashmi, Muhammad Azam, Raheem Sarwar   +3 more
wiley   +1 more source

Best Practices in Open and Reproducible Antarctic Marine Sediment Core Research

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract Marine sediment cores from Antarctica are archived by national programs for reuse and resampling by future researchers, creating a resourceful way to conduct Antarctic science. With reduced budgets to conduct Antarctic field work and to collect new sediment cores offshore of the icy continent, the accessibility of these archived cores and ...
L. E. Miller, R. A. Venturelli, L. O. Prothro, N. Varela, M. Szemak, J. Ruggiero, A. Vega‐González, A. P. Lepp, V. Stanley, K. Vadman, C. Fritz, K. Tinto, F. Nitsche   +12 more
wiley   +1 more source

Von Willebrand Factor and ADAMTS13 in Relation to Atherosclerosis in the General Population: The Rotterdam Study

European Journal of Haematology, Volume 117, Issue 6, Page 1637-1646, December 2026.
ABSTRACT Background Higher von Willebrand factor (VWF) levels and lower ADAMTS13 activity are linked to increased risk of atherosclerotic cardiovascular disease, but their association with atherosclerosis burden, a potential underlying mechanism, remains unclear.
Mitra Nekouei Shahraki, Frank W. G. Leebeek, Moniek P. M. de Maat, Maryam Kavousi, Daniel Bos   +4 more
wiley   +1 more source

Determining the Diagnostic Value of Venous Sinus Density Indices in Non‐Contrast Brain CT Scan for Early Diagnosis of Cerebral Venous Sinus Thrombosis

Brain and Behavior
Background and Aim A non‐contrast brain CT Non‐contrast computed tomography (NCCT) scan is a valuable and cost‐effective way to detect cerebral venous sinus thrombosis (CVST) during its acute phase.
Mehdi Maghbooli, Mohammad Kermani, Seyed Nariman Tavakoli Sany, Melina Arfaei   +3 more
doaj   +1 more source

Synthetic MRI from radiotherapy planning CT images for Head‐and‐Neck Cancer

Journal of Applied Clinical Medical Physics, Volume 27, Issue 11, November 2026.
Abstract Background Computed Tomography (CT) provides geometric accuracy and electron density information essential for radiotherapy planning; however, it offers limited soft‐tissue contrast. Magnetic Resonance Imaging (MRI) improves tumor visualization but introduces registration uncertainties when acquired separately from the radiotherapy planning CT
Prabhakar Ramachandran, Akshay C Dhargave, Catherine Jones, Dionee Liefman, Lachlan McDowell, Howard Liu   +5 more
wiley   +1 more source

Automated offline adaptive radiotherapy through CBCT imaging: A multidimensional feasibility study of hypersight and iterative CBCT

Journal of Applied Clinical Medical Physics, Volume 27, Issue 11, November 2026.
Abstract Background Offline adaptive radiotherapy (OffART) offers potential dosimetric and clinical advantages by adjusting planned dosimetry in response to systematic patient changes throughout treatment, however implementation is associated with an increased labor burden.
Ben R. Archibald‐Heeren, Aidan Leong, Nigel Middlebrook, Peter Phung, Sarah Hauville, Yunfei Hu, Gayan Singappulige, Trent J Aland   +7 more
wiley   +1 more source

Machine learning-driven imaging data for early prediction of lung toxicity in breast cancer radiotherapy

Scientific Reports
One possible adverse effect of breast irradiation is the development of pulmonary fibrosis. The aim of this study was to determine whether planning CT scans can predict which patients are more likely to develop lung lesions after treatment.
Tamás Ungvári, Döme Szabó, András Győrfi, Zsófia Dankovics, Balázs Kiss, Judit Olajos, Károly Tőkési   +6 more
doaj   +1 more source

Filament deposition modeling quality assurance testing for the medical physicist

Journal of Applied Clinical Medical Physics, Volume 27, Issue 11, November 2026.
Abstract Background Filament deposition modeling (FDM) can be a practical method for producing quality control (QC) imaging resources for the clinic. However, frequent printing may degrade print quality over time. Purpose To develop a process to ensure prints for the diagnostic physicist are accurate and reproducible.
Benjamin T. Heggie, Izabella L. Barreto, Manuel M. Arreola, Stephanie M. Leon   +3 more
wiley   +1 more source

Early Quantification of Hematoma Hounsfield Units on Noncontrast CT in Acute Intraventricular Hemorrhage Predicts Ventricular Clearance after Intraventricular Thrombolysis.

, 2015
BACKGROUND AND PURPOSE: Thrombolytic efficacy of intraventricular rtPA for acute intraventricular hemorrhage may depend on hematoma composition. We assessed whether hematoma Hounsfield unit quantification informs intraventricular hemorrhage clearance ...
Hanley, D F, Ziai, W, Kornbluth, J, Carhuapoma, J R, Nekoovaght-Tak, S, Ullman, Natalie   +5 more
core   +1 more source