Results 21 to 30 of about 138,343 (192)

Design and performance of a compact and stationary microSPECT system [PDF]

, 2013
Purpose: Over the last ten years, there has been an extensive growth in the development of microSPECT imagers. Most of the systems are based on the combination of conventional, relatively large gamma cameras with poor intrinsic spatial resolution and ...
Accorsi, Amano, Barrett, Beekman, Beekman, Bert Vandeghinste, Branderhorst, Deleye, Deprez, Deprez, Franc, Funk, Furenlid, Furenlid, Goorden, Have, Have, Hesterman, Joseph, Karel Deprez, Kim, Lackas, Lin, McElroy, Metzler, Mok, Nillius, Roel Van Holen, Rogulski, Schramm, Segars, Stefaan Vandenberghe, Van Holen, Vandeghinste, Vunckx   +34 more
core   +2 more sources

Modified Contrast-Detail Phantom for Determination of the CT Scanners Abilities for Low-Contrast Detection

Applied Sciences, 2021
Computerised tomography (CT) continues to be a corner stone medical and radiologic imaging modalities in radiology and radiotherapy departments. Its importance lies in its efficiency in low contrast detectability (LCD).
Moshi Geso, Salem Saeed Alghamdi, Abdulrahman Tajaldeen, Rowa Aljondi, Hind Alghamdi, Ali Zailae, Essam H. Mattar, Nissren Tamam, Abdullah Aljehani, Hiba Omer, Abdelmoneim Sulieman   +10 more
doaj   +1 more source

Feasibility of MV CBCT-based treatment planning for urgent radiation therapy: dosimetric accuracy of MV CBCT-based dose calculations. [PDF]

, 2015
Unlike scheduled radiotherapy treatments, treatment planning time and resources are limited for emergency treatments. Consequently, plans are often simple 2D image-based treatments that lag behind technical capabilities available for nonurgent ...
Fogh, Shannon E, Held, Mareike, Morin, Olivier, Pouliot, Jean, Sneed, Penny K   +4 more
core   +1 more source

Assessment of CT Imaging Protocols Impacts on Calculation of Point Dose in Water Phantom using Radiotherapy Treatment Planning System

Frontiers in Biomedical Technologies, 2020
Purpose: Point dose calculation in the Treatment Planning System (TPS) is performed using Computed Tomography (CT) images because CT images data have the tissue electron density information.
Gholamreza Fallah Mohammadi, Ehsan Mihandoost   +1 more
doaj   +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 ...
Roberto Pini, Sandro Meucci, Sandro Meucci, Claudia Kusmic, Cecilia Masciullo, Paolo Armanetti, Nicole Di Lascio, Lucia Cavigli, Francesco Faita, Marco Cecchini, Luca Menichetti, Fulvio Ratto, Cinzia Avigo   +12 more
openaire   +5 more sources

Phantom reference image

, 2020
A proton density weighted phantom ...
, Bruno, , Burak, , Pierre, Juergen
openaire   +1 more source

Dosimetric validation of a magnetic resonance image gated radiotherapy system using a motion phantom and radiochromic film. [PDF]

, 2017
PurposeMagnetic resonance image (MRI) guided radiotherapy enables gating directly on the target position. We present an evaluation of an MRI-guided radiotherapy system's gating performance using an MRI-compatible respiratory motion phantom and ...
Berbeco, Brady, Chuang, Fayad, Freislederer, Garibaldi, Giraud, Jin, Keall, Kini, Koch, Lewis, Low, Malinowski, Nioutsikou, Ozhasoglu, Sanders, Seppenwoolde, Shiinoki, Shirato, Smith, Tacke, Voort, Wagman, Wiersma, Wojcieszynski, Wunderink, Yoganathan, Yousefi   +28 more
core   +1 more source

Optimizing dual energy cone beam CT protocols for preclinical imaging and radiation research [PDF]

, 2017
Objective: The aim of this work was to investigate whether quantitative dual-energy CT (DECT) imaging is feasible for small animal irradiators with an integrated cone-beam CT (CBCT) system.
Almeida, Isabel P, Descamps, Benedicte, Granton, Patrick V, Landry, Guillaume, Schyns, Lotte E J R, van Hoof, Stefan J, Vanhove, Christian, Verhaegen, Frank   +7 more
core   +1 more source

A Neck-Thyroid Phantom with Small Sizes of Thyroid Remnants for Postsurgical I-123 and I-131 SPECT/CT Imaging

Life, 2023
Post-surgical I-123 and I-131 SPECT/CT imaging can provide information on the presence and sizes of thyroid remnants and/or metastasis for an accurate re-staging of disease to apply an individualized radioiodine therapy.
Konstantinos Michael, Anastasia Hadjiconstanti, Antonis Lontos, George Demosthenous, Savvas Frangos, Yiannis Parpottas   +5 more
doaj   +1 more source

Design of a realistic PET-CT-MRI phantom [PDF]

, 2011
The validation of the PET image quality of new PET-MRI systems should be done against the image quality of currently available PET-CT systems. This includes the validation of new attenuation correction methods.
Espana Palomares, Samuel, Fierens, Yves, Keereman, Vincent, Mollet, Pieter, Vandenberghe, Stefaan   +4 more
core   +1 more source