MOSFET dosimetry in-vivo at superficial and orthovoltage x-ray energies.

abstract：:Coronary artery disease producing ischemic cardiomyopathy is the most frequent cause of left ventricular systolic dysfunction. Non-ischemic cardiomyopathies can also produce systolic dysfunction; they may be inherited as genetic disorders or occur sporadically. These coronary injuries have repercussions on the left ve...

journal_title：Australasian physical & engineering sciences in medicine

authors： Manivannan J,Reddy MR,Thanikachalam S,Kumar RA

更新日期：2005-03-01 00:00:00

abstract：:The assignment of pathogenicity to variants suspected of causing an inherited retinal disease and the subsequent creation of molecular genetic reports sent to clinical geneticists and ophthalmologists has traditionally been time-consuming and subject to error and ambiguity. The purpose of this paper is to describe a c...

journal_title：Australasian physical & engineering sciences in medicine

authors： Huynh E,De Roach J,McLaren T,Thompson J,Montgomery H,Kap C,Hoffmann L,Lamey T

更新日期：2016-03-01 00:00:00

abstract：:Volumetric modulated arc therapy (VMAT) is modern rotational intensity modulated therapy used for treatment of several sites. The study aimed to analyze partial tangential arc VMAT treatment planning and delivery, including analyzing the cardiac and contralateral breast doses resulting from this technique. A total of ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Munshi A,Sarkar B,Anbazhagan S,Giri UK,Kaur H,Jassal K,Ganesh T,Kalyan Mohanti B

更新日期：2017-09-01 00:00:00

abstract：:In this study, we assessed the accuracy of surface doses determined by direct measurement and treatment planning system (TPS) calculations, relative to benchmark Monte Carlo (MC) doses calculated at 70 μm for a 6 MV, 10 × 10 cm clinical radiotherapy beam. In a homogeneous phantom with both open and fixed wedged fields...

journal_title：Australasian physical & engineering sciences in medicine

authors： Kim JH,Hill R,Kuncic Z

更新日期：2012-09-01 00:00:00

abstract：:The computed tomography (CT) imaging artefacts that metallic medical implants produce in surrounding tissues are usually contoured and over-ridden during radiotherapy treatment planning. In cases where radiotherapy treatment beams unavoidably pass though implants, it is especially important to understand the imaging a...

journal_title：Australasian physical & engineering sciences in medicine

authors： Kairn T,Crowe SB,Fogg P,Trapp JV

更新日期：2013-06-01 00:00:00

abstract：:There are many examples of technology transfer from astronomy to medicine, for example algorithms for reconstructing X-ray CT images were first developed for processing radio astronomy images. In more recent times, X-ray detectors developed for the Hubble Space Telescope have been used in a fine-needle breast biopsy s...

journal_title：Australasian physical & engineering sciences in medicine

authors： Hughes S

更新日期：2007-12-01 00:00:00

abstract：:Cricket bowling generates forces with torques on the upper limb muscles and makes the biceps brachii (BB) muscle vulnerable to overuse injury. The aim of this study was to investigate whether there are differences in the amplitude of the EMG signal of the BB muscle during fast and spin delivery, during the seven phase...

journal_title：Australasian physical & engineering sciences in medicine

authors： Ahamed NU,Sundaraj K,Ahmad B,Rahman M,Ali MA,Islam MA

更新日期：2014-03-01 00:00:00

abstract：:Interest in human emotion recognition, regarding physiological signals, has recently risen. In this study, an efficient emotion recognition system, based on geometrical analysis of autonomic nervous system signals, is presented. The electrocardiogram recordings of 47 college students were obtained during rest conditio...

journal_title：Australasian physical & engineering sciences in medicine

authors： Goshvarpour A,Abbasi A,Goshvarpour A

更新日期：2017-06-01 00:00:00

abstract：:This paper proposes a novel approach to detect epilepsy seizures by using Electroencephalography (EEG), which is one of the most common methods for the diagnosis of epilepsy, based on 1-Dimension Local Binary Pattern (1D-LBP) and grey relational analysis (GRA) methods. The main aim of this paper is to evaluate and val...

journal_title：Australasian physical & engineering sciences in medicine

authors： Kaya Y

更新日期：2015-09-01 00:00:00

abstract：:Most of the human head models used in dipole localisation research, which have been reported in the literature to date, assume a simplified cranial structure wherein the head is modelled as a set of distinct homogenous tissue compartments. The inherent inhomogeneity of the tissues has so far been ignored in these mode...

journal_title：Australasian physical & engineering sciences in medicine

authors： Wen P,Li Y

更新日期：2001-03-01 00:00:00

abstract：:Magnetic resonance imaging has become a key modality within the modern radiology department. In addition to the conventional slice images, three dimensional angiographic images, and quantitative flow measurements can be obtained. More recently methods have been developed which enable one to visualize the motion of obj...

journal_title：Australasian physical & engineering sciences in medicine

authors： McKinnon GC,Fischer SE,Maier SE

更新日期：1991-12-01 00:00:00

abstract：:Lymphocyte recirculation between lymphatic and blood vessels and migration through tissues are essential mechanisms underlying immunological surveillance. However, the kinetics of lymphocyte migration through lymphoid tissues remains poorly understood. The present study of lymphocyte migration, based on a sheep model ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Srikusalanukul W,De Bruyne F,McCullagh P

更新日期：2002-09-01 00:00:00

abstract：:The use of Speiser needles for interstitial implants has resulted in malfunctioning of HDR afterloading equipment due to seepage of blood. We have successfully used rounded ended needles in the patient after removal of the trocar ended needles, preventing the seepage of blood. This technique also helps to prevent any ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Das KR,Duchesne G,Coles JR,Pinder P

更新日期：1999-12-01 00:00:00

abstract：:Given that there is increasing recognition of the effect that sub-millimetre changes in collimator position can have on radiotherapy beam dosimetry, this study aimed to evaluate the potential variability in small field collimation that may exist between otherwise matched linacs. Field sizes and field output factors we...

journal_title：Australasian physical & engineering sciences in medicine

authors： Kairn T,Asena A,Charles PH,Hill B,Langton CM,Middlebrook ND,Moylan R,Trapp JV

更新日期：2015-06-01 00:00:00

abstract：:Post installation acceptance testing is vital to demonstrate that the equipment meets the vendor's specification and is suitable for clinical studies. The test procedures described in the NEMA NU 2-2001 document form the basis of vendor performance specifications of PET scanners and hence are also appropriate for acce...

journal_title：Australasian physical & engineering sciences in medicine

authors： Sathiakumar C,Som S,Eberl S,Lin P

更新日期：2010-06-01 00:00:00

abstract：:The performance of an image registration (IR) software was evaluated for automatically detecting known errors simulated through the movement of ExactCouch using an onboard imager. Twenty-seven set-up errors (11 translations, 10 rotations, 6 translation and rotation) were simulated by introducing offset up to ± 15 mm i...

journal_title：Australasian physical & engineering sciences in medicine

authors： Sharma SD,Dongre P,Mhatre V,Heigrujam M

更新日期：2012-09-01 00:00:00

abstract：:From the time when Roentgen and other physicists made the discoveries which led to the development of radiology, radiotherapy and nuclear medicine, medical physicists have played a pivotal role in the development of new technologies that have revolutionized the way medicine is practiced today. Medical physicists have ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Ng KH

更新日期：2008-06-01 00:00:00

abstract：:X-ray transmission tests were performed on a Green-Lite (Infab Corporation) apron/vest combination, and compared to a number of other apron/vest combinations routinely used at Christchurch Hospital as well as a sheet of 0.5 mm lead. The materials were X-rayed using the primary beam of a Philips Optimus 50 X-ray machin...

journal_title：Australasian physical & engineering sciences in medicine

authors： Muir S,McLeod R,Dove R

更新日期：2005-06-01 00:00:00

abstract：:The umbilical cord is part of the fetus and generally includes one umbilical vein (UV) and two umbilical arteries (UAs). As the saphenous vein and UV are the most commonly used veins for the coronary artery disease treatment as a coronary artery bypass graft (CABG), understating the mechanical properties of UV has a k...

journal_title：Australasian physical & engineering sciences in medicine

authors： Karimi A,Navidbakhsh M

更新日期：2014-12-01 00:00:00

abstract：:Over 90% of craniopharyngeal brain tumors are cystic, which enables the injection of beta emitters such as phosphorus-32 (32P) radio-colloid into cysts for their treatment. The aim of this study was to evaluate the clinical and theoretical modelling of Bremsstrahlung radiation dose resulting from stereotactic radio-co...

journal_title：Australasian physical & engineering sciences in medicine

authors： Babaei M,Ghahramani-Asl R,Sadoughi HR,Sardari D,Shahzadi S

更新日期：2018-09-01 00:00:00

abstract：:Laparoscopic ultrasound (LUS) has been widely utilized as a surgical aide in general, urological, and gynecological applications. Our study summarizes the clinical applications of laparoscopic ultrasonography in laparoscopic gynecologic surgery. Retrospective analyses were performed on 42 women subjects using laparosc...

journal_title：Australasian physical & engineering sciences in medicine

authors： Gong XH,Lu J,Liu J,Deng YY,Liu WZ,Huang X,Pirbhulal S,Yu ZY,Wu WQ

更新日期：2015-12-01 00:00:00

abstract：:Cone-beam computed tomography (CBCT) has become the standard imaging technique for many sites treated with Radiotherapy. The Elekta X-ray Volumetric Imaging (XVI) system allows for the acquisition of CBCTs with three different diameters; small (27 cm), medium (41 cm) and large (50 cm) (Elekta in XVI Corrective Mainten...

journal_title：Australasian physical & engineering sciences in medicine

authors： Little DP

更新日期：2019-12-01 00:00:00

abstract：:A new PTW advanced Markus ionization chamber has been implemented in IMRT fields, to measure surface dose at ICRU and ICRP reference depth of 0.07 mm [ICRU Report 39, Determination of dose equivalents resulting from external radiation sources, 1985; ICRP Publication 60, 1990 recommendations of the International Commis...

journal_title：Australasian physical & engineering sciences in medicine

authors： Chen FQ,Gupta R,Metcalfe P

更新日期：2010-03-01 00:00:00

abstract：:Linear scaling is used to convert raw computed tomography (CT) pixel values into Hounsfield units corresponding to different tissue values. Analysis of a benchmarking study, presented here, where the same CT scan was imported into and then exported from multiple radiotherapy treatment planning systems, found inconsist...

journal_title：Australasian physical & engineering sciences in medicine

authors： Kennedy A,Dowling J,Greer PB,Ebert MA

更新日期：2018-09-01 00:00:00

abstract：:Glaucoma is a chronic and irreversible neuro-degenerative disease in which the neuro-retinal nerve that connects the eye to the brain (optic nerve) is progressively damaged and patients suffer from vision loss and blindness. The timely detection and treatment of glaucoma is very crucial to save patient's vision. Compu...

journal_title：Australasian physical & engineering sciences in medicine

authors： Akram MU,Tariq A,Khalid S,Javed MY,Abbas S,Yasin UU

更新日期：2015-12-01 00:00:00

abstract：:This paper describes a software tool developed for research into the use of an electronic portal imaging device (EPID) to verify dose for intensity modulated radiation therapy (IMRT) beams. A portal dose image prediction (PDIP) model that predicts the EPID response to IMRT beams has been implemented into a commerciall...

journal_title：Australasian physical & engineering sciences in medicine

authors： Vial P,Hunt P,Greer PB,Oliver L,Baldock C

更新日期：2008-09-01 00:00:00

abstract：:Surface, build-up and depth dose characteristics of a monoenergetic electron point source simulated by Monte Carlo code MCNP4c for varying field size and SSD are extensively studied in this paper. MCNP4c (Monte Carlo N-Particle Transport Code System) has been extensively used in clinical dose simulation for its versat...

journal_title：Australasian physical & engineering sciences in medicine

authors： Lin H,Wu DS,Wu AD

更新日期：2004-12-01 00:00:00

abstract：:TomoTherapy can provide highly accurate SABR deliveries, but currently it does not have any effective motion management techniques. Shallow breathing has been identified as one possible motion management solution on TomoTherapy, which has been made possible with the BreatheWell audiovisual biofeedback (AVB) device. Si...

journal_title：Australasian physical & engineering sciences in medicine

authors： Hu Y,Archibald-Heeren B,Byrne M,Cai E,Wang Y

更新日期：2019-03-01 00:00:00

abstract：:The purpose of this study is to develop a novel breast abnormality detection system by utilizing the potential of infrared breast thermography (IBT) in early breast abnormality detection. Since the temperature distributions are different in normal and abnormal thermograms and hot thermal patches are visible in abnorma...

journal_title：Australasian physical & engineering sciences in medicine

authors： Gogoi UR,Bhowmik MK,Bhattacharjee D,Ghosh AK

更新日期：2018-12-01 00:00:00

abstract：:Numerical simulation is performed to demonstrate that hemodynamic factors are significant determinants for the development of a vascular pathology. Experimental measurements by particle image velocimetry are carried out to validate the credibility of the computational approach. We present a study for determining compl...

journal_title：Australasian physical & engineering sciences in medicine

authors： Cheung SC,Wong KK,Yeoh GH,Yang W,Tu J,Beare R,Phan T

更新日期：2010-12-01 00:00:00