Berta, L. De Mattia, C. Rizzetto, F. Carrazza, S. Colombo, P.E. Fumagalli, R. Langer, T. Lizio, D. Vanzulli, A. Torresin, A.
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Published in
Physica Medica
Purpose Quantitative metrics in lung computed tomography (CT) images have been widely used, often without a clear connection with physiology. This work proposes a patient-independent model for the estimation of well-aerated volume of lungs in CT images (WAVE). Methods A Gaussian fit, with mean (Mu.f) and width (Sigma.f) values, was applied to the l...
Ghetti, C. Ortenzia, O. Maddalo, M. Altabella, L. Sverzellati, N.
Published in
Physica Medica
Purpose The aim of this work was to evaluate the dosimetric impact of high-resolution thorax CT during COVID-19 outbreak in the University Hospital of Parma. In two months we have performed a huge number of thorax CT scans collecting effective and equivalent organ doses and evaluating also the lifetime attributable risk (LAR) of lung and other majo...
Azlan, Che Ahmad Wong, Jeannie Hsiu Ding Tan, Li Kuo A.D. Huri, Muhammad Shahrun Nizam Ung, Ngie Min Pallath, Vinod Tan, Christina Phoay Lay Yeong, Chai Hong Ng, Kwan Hoong
Published in
Physica Medica
Purpose We present the implementation of e-learning in the Master of Medical Physics programme at the University of Malaya during a partial lockdown from March to June 2020 due to the COVID-19 pandemic. Methods Teaching and Learning (T&L) activities were conducted virtually on e-learning platforms. The students' experience and feedback were evaluat...
Fusi, Franco Romano, Giovanni
Published in
Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)
Ng, Kwan Hoong Bezak, Eva
Published in
Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)
In the current pandemic times, medical physicists may not be aware that there is an interesting story on two significant discoveries related to the coronavirus. One is the invention of the polymerase chain reaction (PCR) and the other is the first electron microscopic observation and identification of the coronavirus. Both of them were disregarded ...
Brooke, Mark D Penfold, Scott N
Published in
Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)
Multiple Coulomb scattering (MCS) poses a challenge in proton CT (pCT) image reconstruction. The assumption of straight paths is replaced with Bayesian models of the most likely path (MLP). Current MLP-based pCT reconstruction approaches assume a water scattering environment. We propose an MLP formalism based on accurate determination of scattering...
Lamprou, Efthymios Gonzalez, Antonio J. Sanchez, Filomeno Benlloch, Jose M.
Published in
Physica Medica
Monolithic scintillators are more frequently used in PET instrumentation due to their advantages in terms of accurate position estimation of the impinging gamma rays both planar and depth of interaction, their increased efficiency, and expected timing capabilities. Such timing performance has been studied when those blocks are coupled to digital ph...
Dosanjh, M. Cirilli, M. Navin, S.
Published in
Physica Medica
Particle therapy (including protons and carbon ions) allows a highly conformal treatment of deep-seated tumours with good accuracy and minimal dose to surrounding tissues, compared to conventional radiotherapy using X-rays. Following impressive results from early phase trials, over the last decades particle therapy in Europe has made considerable p...
Moraes, Eder R Poon, Jonathan K Balakrishnan, Karthikayan Wang, Wenli Badawi, Ramsey D
Published in
Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)
GATE is public domain software widely used for Monte Carlo simulation in emission tomography. Validations of GATE have primarily been performed on a whole-system basis, leaving the possibility that errors in one sub-system may be offset by errors in others. We assess the accuracy of the GATE PET coincidence generation sub-system in isolation, focus...
Bianconi, A.
Published in
Physica Medica
BackgroundThe epidemiology of the slightly radioactive contrast agent named Thorotrast presents a very long latency period between the injection and the development of the related pathologies. It is an example of the more general problem posed by a radioactive internal contaminant whose effects are not noteworthy in the short term but become dramat...
