Results 91 to 100 of about 15,949 (247)

Patient specific QA procedures : In vivo dosimetry [PDF]

, 2008
In vivo dosimetry of IMRT from Copenhagen University ...
Engström, Per
core  

Application of RADPOS in Vivo Dosimetry for QA of High Dose Rate Brachytherapy [PDF]

, 2012
Purpose: The RADPOS in vivo dosimetry system combines an electromagnetic positioning sensor with MOSFET dosimetry, allowing for simultaneous online measurements of dose and spatial position.
J Cygler, Cherpak, A., G Kertzscher, A Cherpak, Kertzscher Schwencke, Gustavo Adolfo Vladimir, Cygler, J.   +5 more
core   +1 more source

Laparoscopic Methylene Blue Photodynamic Therapy for Intraabdominal Infection: A Preclinical Feasibility Study in a Rabbit Model of Perforated Appendicitis

Lasers in Surgery and Medicine, EarlyView.
ABSTRACT Objectives Perforated appendicitis commonly results in intra‐abdominal infection requiring prolonged antibiotic therapy. Intraoperative antimicrobial adjuncts are limited, and photodynamic therapy (PDT) may provide a targeted, resistance‐independent approach.
Timothy M. Baran, Korry T. Wirth, Matthew M. Byrne, Benjamin Gertsen, Eric Y. Wang, Darrian S. Hawryluk, Martin S. Pavelka, Nicole A. Wilson   +7 more
wiley   +1 more source

In vivo dosimetry with thermoluminescent dosimeters in external photon beam radiotherapy [PDF]

, 2010
The ultimate check of the actual dose delivered to a patient in radiotherapy can only be achieved by using in vivo dosimetry. This work reports a pilot study to test the applicability of a thermoluminescent dosimetric system for performing in vivo ...
CALDAS, Linda V. E., COSTA, Alessandro M., FERREIRA, Heberton, BARBI, Gustavo L., COLENCI, Beatriz, BERTUCCI, Edenyse C., SANSAVINO, Simone Z.   +6 more
core   +1 more source

CLINICAL PROBLEMS OF DIRECT DOSIMETRY (IN VIVO) IN CONTACT RADIATION THERAPY

Biomedical Photonics, 2018
The use of multicomponent methods of special treatment (surgery, polychemotherapy, radiation therapy, laser photodynamic therapy) in oncology requires the control of doses in the tumor and healthy organs with high accuracy.
V. A. Titova, D. A. Kokontsev, T. S. Belle   +2 more
doaj   +1 more source

A Simple, Dynamic Geometric Phantom for MRI and CT Reconstruction Pipelines: Beyond Shepp–Logan

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT A customizable, dynamic geometric phantom was developed to bridge the gap between simplistic static phantoms and highly realistic, complex 4D solutions. The phantom enables initial testing, helps detect implementation errors, and supports quantitative evaluation of new dynamic acquisition and reconstruction methods.
Tamás Hakkel, Noémi Kovács, József Sinkó, Domokos Máthé, Krisztián Szigeti   +4 more
wiley   +1 more source

Validation of In vivo Diode Characteristics at Extended Source to Surface Distance for Total Body Irradiation

Journal of Medical Physics
The application of ISORAD diode detectors in treatments like total body irradiation (TBI), where small fractions of potentially lethal doses are delivered, lacks comprehensive clarity and requires further investigation.
K Nithin, P. M Jayadevan, Dhanya, Vysakh Raveendran   +3 more
doaj   +1 more source

Safety, efficacy, pharmacokinetics, and mechanisms of novel 10B‐boronophenylalanine combined with a radio‐frequency quadrupole accelerator in boron neutron capture therapy: A preclinical study in head and neck squamous cell carcinoma

Precision Radiation Oncology, EarlyView.
This study demonstrates that the novel 10B‐BPA‐based BNCT system, combined with an RFQ accelerator, effectively targets head and neck squamous cell carcinoma. It induces tumor regression safely and efficiently by triggering DNA damage and activating the ROS/HIF‐1α/NF‐κB pathway, leading to caspase‐3‐mediated apoptosis.
Zhaoyuan Zhang, Junyan Li, Minhua Fan, Huafu Ouyang, Qiubo Chu, Huijie Yan, Yannan Zheng, Linxuan Huang, Gui Bao, Zhenting Ma, Shaobo Huang, Lin Li, Xiao Xu, Zhigang Liu   +13 more
wiley   +1 more source

Feasibility of a dual detector system to perform transit dosimetry and MV imaging in-vivo [PDF]

, 2019
In this work, a dual detector system for simultaneous in-vivo dosimetry and MV imaging was investigated. The ability to measure real-time water equivalent dose post transit for a heterogeneous phantom was demonstrated, illustrating its advantage over non-
Jeremy Davis (19587424), Owen Brace (20122491), Sultan Alhujaili (20117904), Shrikant Deshpande (20119848), Philip J Vial (20230353), Peter Metcalfe (19587991), Anatoly Rozenfeld (19587706), Marco Petasecca (19587535)   +7 more
core  

A simple method for EPID-based in vivo dosimetry for radiotherapy treatments of head-and-neck cancers [PDF]

, 2012
This study used a homogeneous water-equivalent model of an electronic portal imaging device (EPID), contoured as a structure in a radiotherapy treatment plan, to produce reference dose images for comparison with in vivo EPID dosimetry images.
Trapp, J. V., T. Kairn, Crowe, Scott Bradley, Crowe, S. B., J. V. Trapp, Kairn, T., Trapp, Jamie, S. B. Crowe, Kairn, Tanya   +8 more
core   +1 more source