Results 121 to 130 of about 95,958 (315)

NEUROPSIQUIATRIA: PET Y SPECT

Revista Chilena de Radiología
Existen numerosas indicaciones claramente establecidas para el uso del SPECT y PET en patología neuro-psiquiátrica, particularmente en el estudio de demencias, epilepsia y adicción a drogas.
Juan Carlos Quintana F
doaj   +1 more source

Evaluating auto-contouring accuracy in reduced CT dose images for radiopharmaceutical therapies: Denoising and evaluation of ¹⁷⁷Lu DOTATATE therapy dataset. [PDF]

J Appl Clin Med Phys
Abstract Purpose Reducing radiation dose attributed to computed tomography (CT) may compromise the accuracy of organ segmentation, an important step in 177Lu DOTATATE therapy that affects both activity and mass estimates. This study aimed to facilitate CT dose reduction using deep learning methods for patients undergoing serial single photon emission ...
Yang HT, Ko KY, Yang CC.
europepmc   +2 more sources

WIN-PDQ: A Wiener-estimator-based projection-domain quantitative SPECT method that accounts for intra-regional uptake heterogeneity [PDF]

arXiv
SPECT can enable the quantification of activity uptake in lesions and at-risk organs in {\alpha}-particle-emitting radiopharmaceutical therapies ({\alpha}-RPTs). But this quantification is challenged by the low photon counts, complicated isotope physics, and the image-degrading effects in {\alpha}-RPT SPECT.
arxiv  

SPECT Imaging in the Diagnosis of Meniscal Tears [PDF]

, 1993
Michael P. Grevitt, Philip D. Allen, P. J. Ryan, I. Fogelman   +3 more
openalex   +1 more source

Optical surface information‐based respiratory phase‐sorting and motion‐incorporated reconstruction for SPECT imaging

Medical Physics, EarlyView.
Abstract Background Respiratory motion during the single photon emission computed tomography (SPECT) acquisition can cause blurring artifacts in the reconstructed images, leading to inaccurate estimates for activity and absorbed doses. Purpose To address the impact of respiratory motion, we utilized a new optical surface imaging (OSI) system to extract
Chenguang Li, Lucas A. Polson, Xuzhou Wu, Yibao Zhang, Carlos Uribe, Arman Rahmim   +5 more
wiley   +1 more source

CT, MR and SPECT imaging in temporal lobe epilepsy. [PDF]

, 1990
Roderick Duncan, James C. Patterson, Donald M. Hadley, P. Macpherson, Martin J. Brodie, I Bone, A McGeorge, D. Wyper   +7 more
openalex   +1 more source

Hybrid method for estimating lung ventilation from CT by combining intensity and motion information

Medical Physics, EarlyView.
Abstract Background Functional lung imaging modalities allow for capturing regional lung ventilation information. Computed Tomography based ventilation imaging (CTVI) has been proposed as a surrogate modality that relies on time‐resolved anatomical data and image processing. However, generating accurate ventilation maps using solely computed tomography
Paris Tzitzimpasis, Mario Ries, Bas W. Raaymakers, Cornel Zachiu   +3 more
wiley   +1 more source

99mTc(CO)3-Labeled 1-(3-Nitropyridin-2-yl) Piperazine as Potential Radioligand for 5-HT7 Receptors [PDF]

Journal of Mazandaran University of Medical Sciences
Background and purpose: The serotonin receptor (5-HTR) family includes seven distinct members, with the serotonin seven receptor (5-HT7R) being the newest addition to this family.
Sajjad Molavipordanjani
doaj  

Adult‐Onset Dystonia‐Parkinsonism: Do Not Forget SERAC1

Movement Disorders Clinical Practice, EarlyView.
Giulia Scacciatella, Costanza Masetti, Vidal Yahya, Mauro Treddenti, Gaia Oggioni, Tommaso Bocci, Laura Campiglio, Manuela Zardoni, Chiara Rosci, Marta Pengo, Chiara Manfredi, Roberto Del Bo, Edoardo Monfrini, Alessio Di Fonzo, Maurizio Inghilleri, Alberto Priori   +15 more
wiley   +1 more source

CAPABILITIES OF SPECT OF THE HIP JOINT IN PREDICTING FEMORAL NECK FRACTURES HEALING IN PATIENTS OF ELDERLY AND SENILE AGE

Неотложная медицинская помощь, 2016
We assessed the lack of blood supply to the femoral head in the fracture area in 52 elderly and senile patients with fractures of the femoral neck on the basis of radionuclide studies of the hip joints with osteotropic specimen 99mTc-Pyrphotech.
O. L. Yevdokimova, M. A. Malygina, O. M. Sakharova, N. E. Kudryashova   +3 more
doaj