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：:Arrhythmia is slow, fast or irregular heartbeat. Manual ECG assessment and disease classification is an error-prone task because of vast differences in ECG morphology and difficulty in accurate identifying ECG components. Moreover, proposing a computer-aided diagnosis system for heartbeat classification can be useful ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Khatibi T,Rabinezhadsadatmahaleh N

更新日期：2019-11-26 00:00:00

abstract：:To evaluate and precisely internal fix intra-articular distal radial fracture (IDRF) using the virtual X-ray and three-dimensional (3D) printing technologies. Twenty-one patients with IDRF were recruited, and the data from digital design group (DDG) and real surgery group (RSG) were collected and analyzed. In DDG, the...

journal_title：Australasian physical & engineering sciences in medicine

authors： Xu J,Zhang G,He Z,Zhong S,Chen Y,Wei C,Zheng Y,Lin H,Li W,Huang W

更新日期：2019-10-22 00:00:00

abstract：:Shear wave elasticity imaging (SWEI) has been used to measure the local tissue elasticity. The local tissue shear modulus can be reconstructed from the displacement field of shear waves using an algebraic Helmholtz inversion (AHI) equation or a time-of-flight (TOF)-based algorithm. The shear waves, which are generated...

journal_title：Australasian physical & engineering sciences in medicine

authors： Park DW,Cho HC

更新日期：2019-09-01 00:00:00

abstract：:Bio-signal based assessment for upper-limb functions is an attractive technology for rehabilitation. In this work, an upper-limb function evaluator is developed based on biological signals, which could be used for selecting different robotic training protocols. Interaction force (IF) and participation level (PL, proce...

journal_title：Australasian physical & engineering sciences in medicine

authors： Sheng B,Tang L,Moosman OM,Deng C,Xie S,Zhang Y

更新日期：2019-09-01 00:00:00

abstract：:Super-pixel feature extraction is a key problem to get an acceptable performance in color super-pixel classification. Given a color feature extraction problem, it is necessary to know which is the best approach to solve this problem. In the current work, we're interested in the challenge of nucleus and cytoplasm autom...

journal_title：Australasian physical & engineering sciences in medicine

authors： Bechar MEA,Settouti N,Daho MEH,Adel M,Chikh MA

更新日期：2019-06-01 00:00:00

abstract：:The accuracy of a computed tomography (CT)-relative electron density (RED) curve may have an indirect impact on the accuracy of dose calculation by a treatment planning system (TPS). This effect has not been previously quantified for input of different CT-RED curves from different CT-scan units in the Monaco TPS. This...

journal_title：Australasian physical & engineering sciences in medicine

authors： Hasani M,Farhood B,Ghorbani M,Naderi H,Saadatmand S,Karimkhani Zandi S,Knaup C

更新日期：2019-06-01 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：:Electroencephalographic (EEG) signal records the neuronal activity in the brain and it is used in the diagnosis of epileptic seizure activities. Human inspection of non-stationary EEG signal for diagnosing epilepsy is cumbersome, time-consuming and inaccurate. In this paper an effective automatic approach to detect ep...

journal_title：Australasian physical & engineering sciences in medicine

authors： Sairamya NJ,Thomas George S,Balakrishnan R,Subathra MSP

更新日期：2018-12-01 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：:Peripheral doses out of field could have short and long terms biological effects on patients treated with electron beams. In this study, peripheral dose outside the applicator was measured using the 6, 10 and 18 MeV beams of an Elekta synergy linac. For these beams dose profiles were measured using EBT3 film at variou...

journal_title：Australasian physical & engineering sciences in medicine

authors： Haghparast A,Amiri F,Yarahmadi M,Rezaei M

更新日期：2018-09-01 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：:Liver metabolic information is considered as a crucial diagnostic marker for the diagnosis of fever of unknown origin, and liver recognition is the basis of automatic diagnosis of metabolic information extraction. However, the poor quality of PET and CT images is a challenge for information extraction and target recog...

journal_title：Australasian physical & engineering sciences in medicine

authors： Liu X,Yang J,Song S,Song H,Ai D,Zhu J,Jiang Y,Wang Y

更新日期：2018-06-01 00:00:00

abstract：:Due to large inter- and intra-patient variabilities of arterial input functions (AIFs), accurately modeling and using patient-specific AIF are very important for quantitative analysis of dynamic contrast enhanced MRI. Computer simulations were performed to evaluate and compare nine population AIF models with the Parke...

journal_title：Australasian physical & engineering sciences in medicine

authors： He D,Xu L,Qian W,Clarke J,Fan X

更新日期：2018-06-01 00:00:00

abstract：:Postural balance requires using joint strategies which may be changed from normal conditions by interfering with the sensory information. The goal of the present study was to quantitatively evaluate the role of the joint mechanisms during perturbed stance. Visual and cognitive interference was imposed to sixteen healt...

journal_title：Australasian physical & engineering sciences in medicine

authors： Ashtiani MN,Azghani MR

更新日期：2018-03-01 00:00:00

abstract：:Ischaemic stroke is a major public health issue in both developed and developing nations. Hypothermia is believed to be neuroprotective in cerebral ischaemia. Conversely, elevated brain temperature is associated with poor outcome after ischaemic stroke. Mechanisms of heat exchange in normally-perfused brain are relati...

journal_title：Australasian physical & engineering sciences in medicine

authors： Lillicrap T,Tahtalı M,Neely A,Wang X,Bivard A,Lueck C

更新日期：2017-12-01 00:00:00

abstract：:In 2001 the ACPSEM published a position paper on quality assurance in screen film mammography which was subsequently adopted as a basis for the quality assurance programs of both the Royal Australian and New Zealand College of Radiologists (RANZCR) and of BreastScreen Australia. Since then the clinical implementation ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Heggie JCP,Barnes P,Cartwright L,Diffey J,Tse J,Herley J,McLean ID,Thomson FJ,Grewal RK,Collins LT

更新日期：2017-09-01 00:00:00

abstract：:Properties of a new polymer gel with cross-linked polyvinyl alcohol as a gelatinous matrix were investigated. The new polymer gel dosimeter was named PVABAT. The irradiation was performed using a calibrated 60Co beam. The dose responses of the PVABAT formulations were quantified with MRI transverse relaxation rate (R2...

journal_title：Australasian physical & engineering sciences in medicine

authors： Abtahi SMM,Sadeghi Abandansari H

更新日期：2017-09-01 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 recent years, the use of gold nanoparticles in radiation therapy has been introduced as a new approach in radiotherapy. The aim of this study is to investigate the effect of gold nanoparticles (GNPs) in plaque brachytherapy for choroidal melanoma using Monte Carlo (MC) simulation. MCNPX code was used for simulation...

journal_title：Australasian physical & engineering sciences in medicine

authors： Rezaei H,Zabihzadeh M,Ghorbani M,Goli Ahmadabad F,Mostaghimi H

更新日期：2017-09-01 00:00:00

abstract：:The presence of metal artefacts in computed tomography (CT) create issues in radiation oncology. The loss of anatomical information and incorrect Hounsfield unit (HU) values produce inaccuracies in dose calculations, providing suboptimal patient treatment. Metal artefact reduction (MAR) algorithms were developed to co...

journal_title：Australasian physical & engineering sciences in medicine

authors： Guilfoile C,Rampant P,House M

更新日期：2017-06-01 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：:In general, a weighting factor of one is applied for low linear energy transfer radiations. However, several studies indicate that relative biological effectiveness (RBE) of low energy photons and electrons is greater than one. The aim of this current study was calculating the RBE of I-131 radiation relative to Co-60 ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Ezzati AO,Mahmoud-Pashazadeh A,Studenski MT

更新日期：2017-06-01 00:00:00

abstract：:Mitral stenosis (MS) and mitral insufficiency (MI) have different pre-operative hemodynamic characteristics. However, it is unclear if there are differences in long-term echocardiographic characteristics of MS and MI patients after mechanical mitral valve replacement. This study is to compare long-term echocardiograph...

journal_title：Australasian physical & engineering sciences in medicine

authors： Zhu X,Li Q,Tang H,Xiao X

更新日期：2017-03-01 00:00:00

abstract：:The study developed two models of an innovative high-speed lancing device and safety lancet, where the specially designed structure causes high-speed motion of the lancet, resulting in only one puncture of the skin. The two experimental models and other lancing devices sold on market were compared in order to: (1) mea...

journal_title：Australasian physical & engineering sciences in medicine

authors： Chang H,Yeh YJ,Lee R,Shyu JH

更新日期：2016-12-01 00:00:00

abstract：:Obesity management is a key point during cardiac rehabilitation. The effect of new index, waist circumference (WC), in the obesity management of cardiac rehabilitation is not clear yet. Therefore, our study compared the WC index to the body mass index (BMI) in the evaluation of obesity management for the patients with...

journal_title：Australasian physical & engineering sciences in medicine

authors： Zhao H,Ma J,Zhou Q,Chen W,Zhu W,Cai Z,Lei H,Deng Y,Xu L,Qiu J

更新日期：2016-12-01 00:00:00

abstract：:This paper presents a new method to apply timing characteristics of electroencephalograph (EEG) beta frequency bands to assess the depth of anaesthesia (DoA). Firstly, the measured EEG signals are denoised and decomposed into 20 different frequency bands. The Mobility (M), permutation entropy (PE) and Lempel-Ziv compl...

journal_title：Australasian physical & engineering sciences in medicine

authors： Li T,Wen P

更新日期：2016-09-01 00:00:00

abstract：:Electrocardiogram (ECG) signal gives a lot of information on the physiology of heart. In reality, noise from various sources interfere with the ECG signal. To get the correct information on physiology of the heart, noise cancellation of the ECG signal is required. In this paper, the effectiveness of extended Kalman sm...

journal_title：Australasian physical & engineering sciences in medicine

authors： Panigrahy D,Sahu PK

更新日期：2016-09-01 00:00:00

abstract：:Given the difficulty and potential time- or financial-costs associated with accurate small field dosimetry, this study aimed to establish the clinical necessity of obtaining accurate small field output factor measurements and to evaluate the effects on planned doses that could arise if accurate measurements are not us...

journal_title：Australasian physical & engineering sciences in medicine

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

更新日期：2016-09-01 00:00:00

abstract：:The sample entropy (SampEn) has been widely used to quantify the complexity of RR-interval time series. It is a fact that higher complexity, and hence, entropy is associated with the RR-interval time series of healthy subjects. But, SampEn suffers from the disadvantage that it assigns higher entropy to the randomized ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Marwaha P,Sunkaria RK

更新日期：2016-09-01 00:00:00

abstract：:Large differences in monitor units have been observed when RadCalc, a pencil-beam-algorithm based software, is used to verify clinical electron plans from Raystation, a Monte-Carlo-algorithm based planning system. To investigate the problem, a number of clinical plans as well as test plans were created and calculated ...

journal_title：Australasian physical & engineering sciences in medicine

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

更新日期：2016-09-01 00:00:00

abstract：:The purpose of this paper is to describe an outline of a proton therapy system in Nagoya Proton Therapy Center (NPTC). The NPTC has a synchrotron with a linac injector and three treatment rooms: two rooms are equipped with a gantry and the other one is equipped with a fixed horizontal beamline. One gantry treatment ro...

journal_title：Australasian physical & engineering sciences in medicine

authors： Toshito T,Omachi C,Kibe Y,Sugai H,Hayashi K,Shibata H,Yasui K,Tanaka K,Yamamoto T,Yoshida A,Nikawa E,Asai K,Shimomura A,Okumura I,Suzuki T,Kinou H,Isoyama S,Ogino H,Iwata H,Shibamoto Y,Mizoe J

更新日期：2016-09-01 00:00:00

abstract：:Memory plays an important role in human life. Memory can be divided into two categories, i.e., long term memory and short term memory (STM). STM or working memory (WM) stores information for a short span of time and it is used for information manipulations and fast response activities. WM is generally involved in the ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Ahmad RF,Malik AS,Kamel N,Reza F,Abdullah JM

更新日期：2016-06-01 00:00:00

abstract：:Fibromyalgia syndrome (FMS) is a chronic muscle and skeletal system disease observed generally in women, manifesting itself with a widespread pain and impairing the individual's quality of life. FMS diagnosis is made based on the American College of Rheumatology (ACR) criteria. However, recently the employability and ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Arslan E,Yildiz S,Albayrak Y,Koklukaya E

更新日期：2016-06-01 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：:The alcoholism can be detected by analyzing electroencephalogram (EEG) signals. However, analyzing multi-channel EEG signals is a challenging task, which often requires complicated calculations and long execution time. This paper proposes three data selection methods to extract representative data from the EEG signals...

journal_title：Australasian physical & engineering sciences in medicine

authors： Wang S,Li Y,Wen P,Lai D

更新日期：2016-03-01 00:00:00

abstract：:Rotary blood pumps have the potential to become a viable long-term treatment option for the heart failure patients to bridge to transplantation or destination therapy. However, these devices operate at a constant speed which may lead to long term complications or they may operate in an undesired support mode such as e...

journal_title：Australasian physical & engineering sciences in medicine

authors： Bozkurt S

更新日期：2016-03-01 00:00:00

abstract：:Radiofrequency-electromagnetic field (RF-EMF) exposure of human populations is increasing due to the widespread use of mobile phones and other telecommunication and broadcasting technologies. There are ongoing concerns about potential short- and long-term public health consequences from RF-EMF exposures. To elucidate ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Bhatt CR,Redmayne M,Abramson MJ,Benke G

更新日期：2016-03-01 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