Results 81 to 90 of about 375,872 (318)

The effect of kV imaging dose on PTV and OAR planning constraints in lung SBRT using stereoscopic/monoscopic real‐time tumor‐monitoring system

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Quantify the impact of additional imaging doses on clinical dose constraints during lung stereotactic body radiotherapy (SBRT) treatment utilizing stereoscopic/monoscopic real‐time tumor monitoring. Materials and Methods Thirty lung SBRT patients treated with the volumetric arc therapy technique were randomly selected from the ...
Ruwan Abeywardhana, Mike Sattarivand
wiley   +1 more source

A systematic review of the clinical characteristics and course of atrioventricular blocks in hyperthyroidism

Annals of Medicine
Background Atrioventricular block (AVB) is rare in hyperthyroidism (HTH). Little is known about the true prevalence, clinical course, optimal management, and outcomes of different types of AVBs in patients with HTH.
Fateen Ata, Haseeb Ahmad Khan, Hassan Choudry, Adeel Ahmad Khan, Shuja Tahir, Tiago Lemos Cerqueira, Ben Illigens   +6 more
doaj   +1 more source

Numerical simulation of electrocardiograms for full cardiac cycles in healthy and pathological conditions [PDF]

arXiv, 2015
This work is dedicated to the simulation of full cycles of the electrical activity of the heart and the corresponding body surface potential. The model is based on a realistic torso and heart anatomy, including ventricles and atria. One of the specificities of our approach is to model the atria as a surface, which is the kind of data typically provided
arxiv  

A comparative analysis of deep learning architectures with data augmentation and multichannel input for locoregional breast cancer radiotherapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Studies on deep learning dose prediction increasingly focus on 3D models with multiple input channels and data augmentation, which increases the training time and thus also the environmental burden and hampers the ease of re‐training. Here we compare 2D and 3D U‐Net models with clinical accepted plans to evaluate the appropriateness of
Rosalie Klarenberg, Nienke L. M. Bakx, Coen W. Hurkmans   +2 more
wiley   +1 more source

Pseudo 2:1 AV Block From Acquired Long QT Syndrome From Eating Clay

JACC: Case Reports, 2023
Age-related degeneration of the cardiac conduction system is an important cause of heart block and a leading indication for permanent pacemaker implantations.
Kabo Mojela, MBChB, MMed, Philasande Mkoko, MBChB, MMed, MPhil, Cert Cardio, ECES   +2 more
doaj  

In vivo transit dosimetry methodology for whole breast intensity modulated radiation therapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background In vivo transit dosimetry using an electronic portal imaging device (EPID‐IVTD) is an important tool for verifying the accuracy of radiation therapy treatments. Despite its potential, the implementation of EPID‐IVTD in breast intensity modulated radiation therapy (IMRT) treatments has not yet been standardized, limiting its clinical
Lucia Zirone, Elisa Bonanno, Giuseppina R. Borzì, Nina Cavalli, Alessia D'Anna, Andrea Girlando, Martina Pace, Giuseppe Stella, Carmelo Marino   +8 more
wiley   +1 more source

Dual Chamber Pacemaker Implant in Coronary Sinus Leading to Several Complications

Diagnostics
Permanent pacemaker implantation is a low-risk procedure. However, complications may occur at a rate of around 4–8%. We present a case where initial implantation resulted in complications that could have been avoided by meticulous assessment of lead ...
Nancy Wassef, Mina Ibrahim, Christine Botrous, Amr Anos, Kai Hogrefe, Janaka Pathiraja   +5 more
doaj   +1 more source

Atrial undersensing-associated premature atrial contractions: A case report [PDF]

Scripta Medica
Atrial undersensing is defined as the inability of the pacemaker to detect spontaneous atrial activity. A case of premature atrial contractions associated with atrial undersensing is presented.
Skakun Oleksiy, Vandzhura Yaroslava, Vandzhura Ihor, Symchych Khrystyna, Symchych Anton   +4 more
doaj   +1 more source

ECG beats classification using waveform similarity and RR interval [PDF]

arXiv, 2011
This paper present an electrocardiogram (ECG) beat classification method based on waveform similarity and RR interval. The purpose of the method is to classify six types of heart beats (normal beat, atrial premature beat, paced beat, premature ventricular beat, left bundle branch block beat and right bundle branch block beat).
arxiv  

BreastWatch: A Varian Eclipse script tool for Community‐Based automatic evaluation of breast treatment plans

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This work introduces BreastWatch, a Varian Eclipse script tool designed to help medical physicists, dosimetrists, and radiation oncologists easily inspect and improve External Beam Breast Treatment (EBBT) plans using automatic evaluation of protocol dose‐constraints enhanced by a Community‐Based approach.
Stefano Agostinelli, Daniele Zefiro, Stefania Garelli, Francesca Cavagnetto, Marco Gusinu, Monica Bevegni, Gladys Blandino, Alessandra Fozza, Fabrizio Levrero   +8 more
wiley   +1 more source