Results 1 to 10 of about 333,509 (151)

Use of dose-area product to assess plan quality in robotic radiosurgery [PDF]

Zeitschrift für Medizinische Physik
Purpose: In robotic stereotactic radiosurgery (SRS), optimal selection of collimators from a set of fixed cones must be determined manually by trial and error.
Markus Eichner, Alexandra Hellerbach, Mauritius Hoevels, Klaus Luyken, Michael Judge, Daniel Rueß, Maximilian Ruge, Martin Kocher, Stefan Hunsche, Harald Treuer   +9 more
doaj   +4 more sources

Dose indices in dental cone beam CT and correlation with dose–area product [PDF]

Dentomaxillofacial Radiology, 2013
In the 2011 project "Safety and efficacy of a new and emerging dental X-ray modality (SEDENTEXCT)", it was suggested that dose index (DI) and dose-area product (DAP) could be easily measured and used as diagnostic reference levels (DRLs), which would help in the management of radiation doses to patients in optimum exposure settings.
Araki K, Patil S, Endo A, Okano T.
exaly   +5 more sources

Practical In situ Calibration for Dose-area Product Meter in Interventional Fluoroscopy: Beam-area Method [PDF]

Journal of Medical Physics
The radiation dosimetry used to measure the ionizing radiation dose delivered during X-ray imaging procedures in planar radiography units, especially in fluoroscopy, is the dose-area product (DAP).
Fara Farisa Dhaifina, Raushan Fikr Ilham Ibrahim, Hanendya Disha Randy Raharja, Lukmanda Evan Lubis   +3 more
doaj   +2 more sources

Assessment of regional pediatric diagnostic reference levels for panoramic radiography using dose area product [PDF]

Journal of Medical Physics, 2020
Aim: The current work aims to calculate dose area product (DAP) and to determine regional diagnostic reference level (DRL) for pediatric panoramic radiography in Tamil Nadu.
Amal Jose, A Saravana Kumar, K N Govindarajan, P Manimaran   +3 more
doaj   +2 more sources

Dose-Area Product Determination and Beam Monitor Calibration for the Fixed Beam of the Shanghai Advanced Proton Therapy Facility

Applied Sciences, 2022
Research conducted to-date, makes use of the IBA-Lynx scintillating screen and radiochromic film to analyze the proton field uniformity for dose-area product (DAP) determination.
Libing Zhu, Manzhou Zhang, Xincheng Xiang, Xiangang Wang   +3 more
doaj   +3 more sources

Effective Dose Evaluation of Cerebral Angiography Using Kerma Area Product and Development of Effective Dose Conversion Factors [PDF]

Diagnostics
Background/Objectives: Transfemoral cerebral angiography (TFCA) involves significant radiation exposure because of prolonged fluoroscopy and repeated imaging sequences.
Jeongbok Min, Jungsu Kim
doaj   +2 more sources

Estimation of Operator Dose by Dose Area Product Meter

Japanese Journal of Radiological Technology, 2006
Because of the more advanced and more complex procedures in interventional radiology (IVR), longer treatment times have become necessary. Therefore, it is important to determine the exposure doses received by operators and patients. Operator doses arising from the use of X-rays are mainly due to scattered radiation.
Hajime Sakamoto, Yoshitomo Sano
exaly   +4 more sources

Measurement of dose‐area product with GafChromic XR Type R film

Journal of Applied Clinical Medical Physics, 2005
Many of the newer X‐ray machines are equipped with electronic means to provide dose–area product (DAP) information. For machines without that ability, an alternative method is to record radiation on a film that can handle a large amount of cumulative exposure. The use of GafChromic XR Type R film was investigated for this purpose by placing it at the X‐
Thomas, George, Li, Yushan, Chu, Robert Y.L., Cheung, John Y., Maqbool, Feroz, Rabe, Frank, Burns, G. Scott   +6 more
exaly   +3 more sources

A Study of Patientʼs Dose Control at Radiography by Using a Dose Area Product Meter

Japanese Journal of Radiological Technology, 2021
The International Commission on Radiological Protection recommends adaptation of the diagnostic reference levels (DRLs). Japan DRLs 2020 apply the entrance surface dose (ESD) in radiography. However, it is difficult to measure ESD in the clinical setting.
Noriko Kotoura
exaly   +4 more sources

The dose-area product, a new parameter for the dosimetry of narrow photon beams

Zeitschrift Fur Medizinische Physik, 2006
In the dosimetry of narrow photon fields with side lengths of the order of 1 cm, the traditional parametrisation via the absolute dose on the beam axis and the relative lateral dose distribution has to deal with the difficulty to find sufficiently small detectors and to adjust them accurately on the narrow-beam axis.
Björn Poppe, Dietrich Harder
exaly   +4 more sources