Results 81 to 90 of about 1,408,220 (375)
Mining Themes in Clinical Notes to Identify Phenotypes and to Predict Length of Stay in Patients admitted with Heart Failure [PDF]
arXiv, 2023 Heart failure is a syndrome which occurs when the heart is not able to pump blood and oxygen to support other organs in the body. Identifying the underlying themes in the diagnostic codes and procedure reports of patients admitted for heart failure could reveal the clinical phenotypes associated with heart failure and to group patients based on their ...
arxiv
Risk analysis of the Unity 1.5T MR‐Linac adapt‐to‐shape workflow
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Background and Purpose The adapt‐to‐shape (ATS) workflow on the Unity MR‐Linac (Elekta AB, Stockholm, Sweden) allows for full replanning including recontouring and reoptimization5. Additional complexity to this workflow is added when the adaptation involves the use of MIM Maestro (MIM Software, Cleveland, OH) software in conjunction with ...
Jiayi Liang +13 more
wiley +1 more source
Accounting for TLD response to CBCT protocols in external beam radiotherapy dose monitoring
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose LiF thermoluminescent dosimeters (TLDs) are commonly used in radiation therapy to verify the delivered dose. Examples include dose verification for complicated treatment setups or cardiovascular implantable electronic devices (CIEDs). TLDs may be present for both the pre‐treatment imaging kilovoltage (kV) beam and the megavoltage (MV ...
Andrew J. White +5 more
wiley +1 more source
Impact of respiratory motion on dose distribution in SIB‐SBRT for lung cancer
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose Respiratory motion is a major source of dose uncertainty in lung cancer radiotherapy. The dose distribution of simultaneous integrated boost‐stereotactic body radiotherapy (SIB‐SBRT) is inhomogeneous and is significantly impacted by respiratory motion for lung cancer. The effect of respiratory motion on SIB‐SBRT was investigated with a
Lingling Liu +7 more
wiley +1 more source
Unusual right heart failure in a patient with heart transplant [PDF]
European Heart Journal, 2010 A 53-year-old man with a history of two heart transplantations in a context of Becker muscular dystrophy was admitted in our department with a 2-month history of moderate right-sided heart failure. He reported a stage 3 NYHA dyspnoea. Heart sounds were distant, with no murmurs, gallops, or rub. He presented peripheral oedema, hepatomegaly, …
Jerome Roncalli +3 more
openaire +3 more sources
Normalization of high pulmonary vascular resistance with LVAD support in heart transplantation candidates [PDF]
, 2017 Objective: Pulmonary hypertension (PH) and elevated pulmonary vascular resistance (PVR) lead to poor outcome after heart transplantation due to postoperative failure of the non-conditioned right ventricle.
Lachat, Mario L. +4 more
core
Therapeutic Advances in Cardiovascular Disease, 2020 Acute right heart failure is associated with impaired prognosis in cardiogenic shock. Since most pharmacological therapies are not evaluated for the failing right ventricle, or even contraindicated, there is a need for rapid minimal invasive circulatory ...
Markus W. Ferrari +2 more
doaj +1 more source
Cardiac sympathetic dysfunction in pulmonary arterial hypertension: Lesson from left-sided heart failure [PDF]
, 2019 Sympathetic nervous system hyperactivity has a well-recognized role in the pathophysiology of heart failure with reduced left ventricular ejection fraction.
Bonaduce, Domenico +10 more
core +1 more source
Isoprenaline increases Excursive Restitution Slope in the Conscious Rabbit with Ischaemic Heart Failure [PDF]
arXiv, 2009 Background: An increased QT/RR slope is hypothesized to be predictive of sudden cardiac death after myocardial infarction. Previous studies have shown that beta-adrenergic stimulation increases QT/RR slope, but the effects of beta-adrenergic stimulation on QT/RR slope in heart failure are unknown.
arxiv
Long-range dependencies in heart rate signals- revisited [PDF]
, 2005 The RR series extracted from human electrocardiogram signal (ECG) is considered as a fractal stochastic process. The manifestation of long-range dependencies is the presence of power laws in scale dependent process characteristics. Exponents of these laws: $\beta$ - describing power spectrum decay, $\alpha$ - responsible for decay of detrended ...
arxiv +1 more source