Results 21 to 30 of about 61,316 (277)

A standard system phantom for magnetic resonance imaging [PDF]

Magnetic Resonance in Medicine, 2021
PurposeA standard MRI system phantom has been designed and fabricated to assess scanner performance, stability, comparability and assess the accuracy of quantitative relaxation time imaging. The phantom is unique in having traceability to the International System of Units, a high level of precision, and monitoring by a national metrology institute ...
Karl F. Stupic, Maureen Ainslie, Michael A. Boss, Cecil Charles, Andrew M. Dienstfrey, Jeffrey L. Evelhoch, Paul Finn, Zydrunas Gimbutas, Jeffrey L. Gunter, Derek L. G. Hill, Clifford R. Jack, Edward F. Jackson, Todor Karaulanov, Kathryn E. Keenan, Guoying Liu, Michele N. Martin, Pottumarthi V. Prasad, Nikki S. Rentz, Chun Yuan, Stephen E. Russek   +19 more
openaire   +4 more sources

MPI Phantom Study with A High-Performing Multicore Tracer Made by Coprecipitation [PDF]

, 2019
Magnetic particle imaging (MPI) is a new imaging technique that detects the spatial distribution of magnetic nanoparticles (MNP) with the option of high temporal resolution.
Eberbeck, Dietmar, Hamm, Bernd, Hauptmann, Ralf, Kosch, Olaf, Kratz, Harald, Mohtashamdolatshahi, Azadeh, Schnorr, Jörg, Taupitz, Matthias, Wiekhorst, Frank   +8 more
core   +1 more source

Assessment of image quality and dose calculation accuracy on kV CBCT, MV CBCT, and MV CT images for urgent palliative radiotherapy treatments. [PDF]

, 2016
A clinical workflow was developed for urgent palliative radiotherapy treatments that integrates patient simulation, planning, quality assurance, and treatment in one 30-minute session.
Barani, Igor, Braunstein, Steve, Cremers, Florian, Fogh, Shannon E, Held, Mareike, Morin, Olivier, Nakamura, Jean, Perez-Andujar, Angelica, Pouliot, Jean, Sneed, Penny K   +9 more
core   +1 more source

Organosilicon phantom for photoacoustic imaging

Journal of Biomedical Optics, 2015
Photoacoustic imaging is an emerging technique. Although commercially available photoacoustic imaging systems currently exist, the technology is still in its infancy. Therefore, the design of stable phantoms is essential to achieve semiquantitative evaluation of the performance of a photoacoustic system and can help optimize the properties of contrast ...
Francesco Faita, Paolo Armanetti, Roberto Pini, Nicole Di Lascio, Luca Menichetti, Lucia Cavigli, Marco Cecchini, Sandro Meucci, Sandro Meucci, Fulvio Ratto, Claudia Kusmic, Cecilia Masciullo, Cinzia Avigo   +12 more
openaire   +6 more sources

A review of carotid artery phantoms for doppler ultrasound applications

Journal of Medical Ultrasound, 2021
Ultrasound imaging systems need tissue-mimicking phantoms with a good range of acoustic properties. Many studies on carotid artery phantoms have been carried out using ultrasound; hence this study presents a review of the different forms of carotid ...
Kyermang Kyense Dakok, Mohammed Zubir Matjafri, Nursakinah Suardi, Ammar Anwar Oglat, Seth Ezra Nabasu   +4 more
doaj   +1 more source

3D printed patient-specific thorax phantom with realistic heterogenous bone radiopacity using filament printer technology

Zeitschrift für Medizinische Physik, 2022
Current medical imaging phantoms are usually limited by simplified geometry and radiographic skeletal homogeneity, which confines their usage for image quality assessment. In order to fabricate realistic imaging phantoms, replication of the entire tissue
Sepideh Hatamikia, Gernot Kronreif, Alexander Unger, Gunpreet Oberoi, Laszlo Jaksa, Ewald Unger, Stefan Koschitz, Ingo Gulyas, Nikolaus Irnstorfer, Martin Buschmann, Joachim Kettenbach, Wolfgang Birkfellner, Andrea Lorenz   +12 more
doaj   +1 more source

Influence of wall thickness and diameter on arterial shear wave elastography: a phantom and finite element study [PDF]

, 2017
Quantitative, non-invasive and local measurements of arterial mechanical properties could be highly beneficial for early diagnosis of cardiovascular disease and follow up of treatment.
Bini, Fabiano, Blasi, Giulia, Fiorentini, Stefano, Larsson, Matilda, Maksuti, Elira, Marinozzi, Franco, Urban, Matthew W.   +6 more
core   +1 more source

The validity and reliability of the exposure index as a metric for estimating the radiation dose to the patient [PDF]

, 2020
Introduction With the introduction of digital radiography, the feedback between image quality and over-exposure has been partly lost which in some cases has led to a steady increase in dose.
A. England, Alzyoud, Butler, D. Browne, G. de Vries, H.G. Erenstein, J. Menzinga, J.A. Pires Jorge, M. Sauty, Ma, Mothiram, R.N. Higgins, R.S. Dwyer, Radiography, S. Curtin, S.F. Hommel, Seibert   +16 more
core   +4 more sources

iPads in Breast Imaging – A Phantom Study [PDF]

Geburtshilfe und Frauenheilkunde, 2014
Introduction: Modern tablet PCs as the iPad are becoming more and more integrated into medicine. The aim of this study was to evaluate the display quality of iPads regarding digital mammography. Materials and Methods: Three experienced readers compared the display quality of the iPad 2 and 3 with a dedicated 10 megapixel (MP) mammography liquid crystal
Ruediger Schulz-Wendtland, Michael Uder, Matthias Hammon, Siegfried A. Schwab, P Schlechtweg   +4 more
openaire   +3 more sources

Development and application of stable phantoms for the evaluation of photoacoustic imaging instruments. [PDF]

PLoS ONE, 2013
Photoacoustic imaging combines the high contrast of optical imaging with the spatial resolution and penetration depth of ultrasound. This technique holds tremendous potential for imaging in small animals and importantly, is clinically translatable.
Sarah E Bohndiek, Sandhya Bodapati, Dominique Van De Sompel, Sri-Rajasekhar Kothapalli, Sanjiv S Gambhir   +4 more
doaj   +1 more source