Search Results - "Tuna, U"

Gap-filling methods for 3D PlanTIS data by Loukiala, A, Tuna, U, Beer, S, Jahnke, S, Ruotsalainen, U

“…The range of positron emitters and their labeled compounds have led to high-resolution PET scanners becoming widely used, not only in clinical and pre-clinical…”
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A Monte-Carlo based model of the AX-PET demonstrator and its experimental validation by Solevi, P, Oliver, J F, Gillam, J E, Bolle, E, Casella, C, Chesi, E, De Leo, R, Dissertori, G, Fanti, V, Heller, M, Lai, M, Lustermann, W, Nappi, E, Pauss, F, Rudge, A, Ruotsalainen, U, Schinzel, D, Schneider, T, Séguinot, J, Stapnes, S, Weilhammer, P, Tuna, U, Joram, C, Rafecas, M

“…AX-PET is a novel PET detector based on axially oriented crystals and orthogonal wavelength shifter (WLS) strips, both individually read out by silicon…”
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The AX-PET experiment: A demonstrator for an axial Positron Emission Tomograph by Bolle, E., Casella, C., Chesi, E., De Leo, R., Dissertori, G., Fanti, V., Gillam, J.E., Heller, M., Joram, C., Lustermann, W., Nappi, E., Oliver, J.F., Pauss, F., Rafecas, M., Rudge, A., Ruotsalainen, U., Schinzel, D., Schneider, T., Seguinot, J., Solevi, P., Stapnes, S., Tuna, U., Weilhammer, P.

“…AX-PET stands for a new geometrical concept for a high resolution and high sensitivity PET scanner, based on an axial arrangement of long scintillating…”
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AX-PET: A novel PET concept with G-APD readout by Bolle, E., Casella, C., Chesi, E., De Leo, R., Dissertori, G., Fanti, V., Gillam, J.E., Heller, M., Joram, C., Lustermann, W., Nappi, E., Oliver, J.F., Pauss, F., Rafecas, M., Rudge, A., Ruotsalainen, U., Schinzel, D., Schneider, T., Séguinot, J., Solevi, P., Stapnes, S., Tuna, U., Weilhammer, P.

“…The AX-PET collaboration has developed a novel concept for high resolution PET imaging to overcome some of the performance limitations of classical PET…”
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Long axial crystals for PET applications: The AX-PET demonstrator and beyond by Bolle, E., Casella, C., Chesi, E., De Leo, R., Dissertori, G., Fanti, V., Gillam, J. E., Heller, M., Holme, O., Joram, C., Lustermann, W., Nappi, E., Oliver, J. F., Pauss, F., Rafecas, M., Ruotsalainen, U., Schinzel, D., Schneider, T., Seguinot, J., Solevi, P., Stapnes, S., Tuna, U., Weilhammer, P.

“…The usage of long, axially oriented scintillator crystals in a PET scanner has been shown by the AX-PET Demonstrator as a possible solution for a high…”
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AX-PET: Concept, proof of principle and first results with phantoms by Beltrame, P, Bolle, E, Braem, A, Casella, C, Chesi, E, Clinthorne, N, De Leo, R, Dissertori, G, Djambazov, L, Fanti, V, Joram, C, Kagan, H, Lustermann, W, Meddi, F, Nappi, E, Nessi-Tedaldi, F, Oliver, J F, Pauss, F, Rafecas, M, Renker, D, Rudge, A, Ruotsalainen, U, Schinzel, D, Schneider, T, Seguinot, J, Solevi, P, Stapnes, S, Tuna, U, Weilhammer, P

“…AX-PET is a novel PET concept based on long crystals axially arranged and orthogonal Wavelength shifter (WLS) strips, both individually readout by Geiger-mode…”
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Rhinoscintigraphic analysis of nasal mucociliary function in patients with Bell's palsy by Boynuegri, S, Ozer, S, Peksoy, I, Açikalin, A, Tuna, E, Dursun, E, Eryilmaz, A

“…Objective: Mucociliary transport (MCT) is an important defense mechanism of the respiratory tract. One of the major factors determining MCT is the ciliary…”
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Gap-Filling for the High-Resolution PET Sinograms With a Dedicated DCT-Domain Filter by Tuna, U., Peltonen, S., Ruotsalainen, U.

“…High-resolution positron emission tomography (PET) scanners have brought many improvements to the nuclear medicine imaging field. However, the mechanical…”
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Performance of the AX-PET Demonstrator by Beltrame, P., Bolle, E., Braem, A., Casella, C., Chesi, E., Clinthorne, N., De Leo, R., Dissertori, G., Djambazov, L., Fanti, V., Joram, C., Kagan, H., Lustermann, W., Meddi, F., Nappi, E., Nessi-Tedaldi, F., Oliver, J.F., Pauss, F., Rafecas, M., Renker, D., Rudge, A., Ruotsalainen, U., Schinzel, D., Schneider, T., Séguinot, J., Solevi, P., Stapnes, S., Tuna, U., Weilhammer, P.

“…The goal of the AX-PET project is to build and test a demonstrator for a high resolution, high sensitivity PET scanner, based on a novel geometrical concept of…”
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Interpolation for the gap-filling of the HRRT PET sinograms by using the slices in the direction of the radial samples by Tuna, U., Peltonen, S., Ruotsalainen, U.

“…The ECAT High Resolution Research Tomograph (HRRT) (CTI PET Systems, Knoxville, TN, USA) is the state-of-the-art positron emission tomography (PET) scanner in…”
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PET sinogram denoising by block-matching and 3D filtering by Peltonen, S., Tuna, U., Sanchez-Monge, E., Ruotsalainen, U.

“…We consider the denoising of noisy positron emission tomography (PET) sinograms by sparse 3D transform domain collaborative filtering. The filtering operation…”
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Sequential regularized MLEM reconstruction method for incomplete sinograms by Tuna, U., Pepe, A., Ruotsalainen, U.

“…In this study, we investigate the capability of the well-known maximum likelihood expectation maximization (MLEM) method in handling the incomplete sinogram…”
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Analytical image reconstruction strategies for AX-PET data by Akram, M. M., Tuna, U., Solevi, P., Rafecas, M., Ruotsalainen, U.

“…Axial-PET (AX-PET) concept aims at significant reduction in parallax error and simultaneous improvement in sensitivity and spatial resolution by employing a…”
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Comparison of 3D-RP and 3D-OPOSEM reconstructions of the ECAT HRRT PET data by Tuna, U, Johansson, J, Ruotsalainen, U

“…Positron emission tomography (PET) is a powerful tool for quantifying the physiological processes through dynamic PET studies. In PET reconstruction,…”
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Estimation of rigid body motion parameters for the ECAT HRRT data without image reconstruction by Forma, J, Tuna, U, Ruotsalainen, U

“…Correcting PET data for patient movement is an important pre-processing step in modern PET studies with high resolution scanners. Many motion correction…”
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Evaluation of automatic striatal segmentation for the ECAT HRRT images by Tuna, U, Tohka, J, Farinha, R J P C, Ruotsalainen, Ulla

“…In quantitative positron emission tomography (PET) brain studies, the temporal dynamics of the radiopharmaceutical are usually analyzed separately for…”
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The AX-PET concept: New developments and tomographic imaging by Beltrame, P., Bolle, E., Braem, A., Casella, C., Chesi, E., Clinthorne, N., De Leo, R., Dissertori, G., Djambazov, L., Fanti, V., Gillam, J. E., Heller, M., Joram, C., Kagan, H., Lustermann, W., Meddi, F., Nappi, E., Nessi-Tedaldi, F., Oliver, J. F., Pauss, F., Renker, D., Rafecas, M., Rudge, A., Ruotsalainen, U., Schneider, T., Schinzel, D., Seguinot, J., Solevi, P., Stapnes, S., Tuna, U., Weilhammer, P.

“…The Axial PET (AX-PET) concept proposes a novel detection geometry for PET, based on layers of long scintillating crystals axially aligned with the bore axis…”
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Use of steroids in the treatment of peritonsillar abscess by Ozbek, Cem, Aygenc, Erdinc, Tuna, Evrim Unsal, Selcuk, Adin, Ozdem, Cafer

“…Peritonsillar abscess is the most common deep infection of the head and neck that occurs in adults; the treatment of the disease remains controversial. A…”
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Fibrous Dysplasia of the Temporal Bone by Ozbek, Cem, Aygenc, Erdinc, Tuna, Evrim Unsal, Fidan, Faith, Ozdem, Cafer

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