Results 131 to 140 of about 1,992,155 (390)

Patient‐specific adaptive planning margin for whole bladder radiation therapy

Journal of Applied Clinical Medical Physics, Volume 26, Issue 4, April 2025.
Abstract Background Whole bladder irradiation is an organ preservation treatment approach for muscle‐invasive bladder cancer (MIBC). Conventional planning margins, typically 15–20 mm, increase normal tissue toxicity and limit possible dose escalation.
Zhexuan Zhang, Chieh‐Wen Liu, Jeremy D. Donaghue, Eric J. Murray, Omar Mian, Ping Xia   +5 more
wiley   +1 more source

Evaluation of AI‐based auto‐contouring tools in radiotherapy: A single‐institution study

Journal of Applied Clinical Medical Physics, Volume 26, Issue 4, April 2025.
Abstract Background Accurate delineation of organs at risk (OARs) is crucial yet time‐consuming in the radiotherapy treatment planning workflow. Modern artificial intelligence (AI) technologies had made automation of OAR contouring feasible. This report details a single institution's experience in evaluating two commercial auto‐contouring software ...
Tingyu Wang, James Tam, Thomas Chum, Cyril Tai, Deborah C. Marshall, Michael Buckstein, Jerry Liu, Sheryl Green, Robert D. Stewart, Tian Liu, Ming Chao   +10 more
wiley   +1 more source

Organized Complexity: is Big History a Big Computation? [PDF]

arXiv, 2016
The concept of "logical depth" introduced by Charles H. Bennett (1988) seems to capture, at least partially, the notion of organized complexity, so central in big history. More precisely, the increase in organized complexity refers here to the wealth, variety and intricacy of structures, and should not be confused with the increase of random complexity,
arxiv  

Self-Organizing Map assisted Deep Autoencoding Gaussian Mixture Model for Intrusion Detection [PDF]

arXiv, 2020
In the information age, a secure and stable network environment is essential and hence intrusion detection is critical for any networks. In this paper, we propose a self-organizing map assisted deep autoencoding Gaussian mixture model (SOMDAGMM) supplemented with well-preserved input space topology for more accurate network intrusion detection.
arxiv  

Linear accelerator-based stereotactic fractionated photon radiotherapy as an eye-conserving treatment for uveal melanoma

Radiation Oncology, 2018
Background The purpose of this retrospective analysis is to analyze clinical outcome, visual acuity and enucleation rates after linear accelerator-based stereotactic fractionated photon radiotherapy for primary uveal melanoma.
Sati Akbaba, Robert Foerster, Nils Henrik Nicolay, Nathalie Arians, Tilman Bostel, Juergen Debus, Henrik Hauswald   +6 more
doaj   +1 more source

Commissioning of a motion management system for a 1.5T Elekta Unity MR‐Linac: A single institution experience

Journal of Applied Clinical Medical Physics, Volume 26, Issue 4, April 2025.
Abstract Purpose This work describes a single institution experience of commissioning a real‐time target tracking and beam control system, known as comprehensive motion management, for a 1.5 T Elekta MR‐Linac. Methods Anatomical tracking and radiation beam control were tested using the MRI4D Quasar motion phantom.
Blake R Smith, Joel St‐Aubin, Daniel E. Hyer   +2 more
wiley   +1 more source

PGD-UNet: A Position-Guided Deformable Network for Simultaneous Segmentation of Organs and Tumors [PDF]

arXiv, 2020
Precise segmentation of organs and tumors plays a crucial role in clinical applications. It is a challenging task due to the irregular shapes and various sizes of organs and tumors as well as the significant class imbalance between the anatomy of interest (AOI) and the background region.
arxiv  

Can adenine nucleotides predict primary nonfunction of the human liver homograft? [PDF]

, 1994
Sixty-eight primary liver grafts were analyzed to see whether adenine nucleotides (AN: ATP, ADP, and AMP) or purine catabolites (PC: adenosine, inosine, hypoxanthine, and xanthine) of tissue or effluent can predict primary graft nonfunction.
Bronsther, O, Fujita, S, Hamamoto, I, Irish, W, Nakamura, K, Starzl, TE, Takaya, S, Todo, S, Van Gulik, TM   +8 more
core   +1 more source

Left hippocampus sparing model for glioblastoma radiotherapy by utilizing knowledge‐based planning and multi‐criteria optimization

Journal of Applied Clinical Medical Physics, Volume 26, Issue 5, May 2025.
Abstract Purpose Results of a prospective, randomized controlled trial at our institute demonstrate an association between the dose to the left hippocampus and neurocognitive decline post‐radiotherapy for patients with glioblastoma. To minimize the dose to the left hippocampus, a left hippocampus sparing model was created using RapidPlan (RP) and multi‐
Shima Y. Tari, Amr Heikal, Connie Le, Fan Yang, Deepak Dinakaran, John Amanie, Albert Murtha, Lindsay S. Rowe, Wilson H. Roa, Samir Patel   +9 more
wiley   +1 more source

Improvement of lung preservation - From experiment to clinical practice [PDF]

, 2002
Background. Reperfusion injury represents a severe early complication following lung transplantation. Among the pathogenetic factors, the high potassium content of Euro-Collins(R) solution is discussed.
Bittmann, I., Fürst, H., Hatz, Rudolf A., Kellner, B., Müller, Ch., Reichart, B., Schelling, G., Schildberg, Friedrich Wilhelm   +7 more
core   +1 more source