Improved attenuation correction for respiratory gated PET/CT with extended-duration cine CT: a simulation study

2017 ◽  
Author(s):  
Ruoqiao Zhang ◽  
Adam M. Alessio ◽  
Larry A. Pierce ◽  
Darrin W. Byrd ◽  
Tzu-Cheng Lee ◽  
...  
Keyword(s):  
Attenuation Correction ◽  
Simulation Study ◽  
Gated Pet ◽  
Pet Ct ◽  
Extended Duration ◽  
Cine Ct

An Attenuation Correction Method for Respiratory-Gated PET/CT Image

2006 ◽  
Author(s):  
Tomohiro Yamazaki ◽  
Hidenori Ue ◽  
Hideaki Haneishi ◽  
Akira Hirayama ◽  
Takashi Sato ◽  
...  
Keyword(s):  
Attenuation Correction ◽  
Correction Method ◽  
Ct Image ◽  
Gated Pet ◽  
Pet Ct

scholarly journals Cine CT for Attenuation Correction in Cardiac PET/CT

2007 ◽  
Vol 48 (5) ◽  
pp. 794-801 ◽  
Author(s):  
A. M. Alessio ◽  
S. Kohlmyer ◽  
K. Branch ◽  
G. Chen ◽  
J. Caldwell ◽  
...  
Keyword(s):  
Attenuation Correction ◽  
Cardiac Pet ◽  
Pet Ct ◽  
Cine Ct

Respiration-averaged CT versus standard CT attenuation maps for correction of 18F-NaF uptake on hybrid PET/CT (Preprint)

2020 ◽  
Author(s):  
Piotr Slomka
Keyword(s):  
Computed Tomography ◽  
Attenuation Correction ◽  
Single Phase ◽  
Free Breathing ◽  
Pet Ct ◽  
Ct Attenuation ◽  
Cine Ct ◽  
Ct System ◽  
Pet Reconstruction ◽  
The Impact

UNSTRUCTURED Purpose To evaluate the impact of a respiratory averaged computed tomography attenuation correction (RACTAC) instead of a standard single-phase computed tomography (CT) attenuation correction (CTAC) map on the quantitative measures of coronary 18F-NaF uptake in PET/CT. Methods This study comprised 23 patients who underwent 18F-NaF coronary PET in a hybrid PET/CT system, employing 18F-NaF (250MBq). All patients had two CT scans, a standard single-phase CTAC obtained during free-breathing, and a 4D cine-CT scan. From the Cine-CT acquisition, RACTAC maps were obtained by averaging all images acquired over 5 seconds. Two PET reconstruction protocols, one employing CTAC and another employing RACTAC for attenuation correction were considered in this study. Following reconstruction, the quantitative impact of employing RACTAC was assessed using maximum target-to-background (TBRMAX) and coronary microcalcification activity (CMA). Statistical differences were analyzed using reproducibility coefficients and Bland-Altman plots. Results In 23 patients, we evaluated 34 coronary lesions using PET reconstructions utilizing CTAC and RACTAC. There was good agreement between CTAC and RACTAC PET reconstructions for TBRMAX (median [Interquartile range, IQR]: CTAC = 1.65[1.23-2.38], RACTAC = 1.63[1.23-2.33], p=0.55), with coefficient of reproducibility of 0.18. The CMA agreement was similar (median [IQR]: CTAC = 0.10 [0-1.0], RACTAC= 0.15[0-1.03], p=0.55 with coefficient of reproducibility of 0.17 Conclusion Employing RACTAC maps does not affect the quantification of the coronary 18F-NaF uptake on PET/CT.

Method for transforming CT images for attenuation correction in PET/CT imaging

2006 ◽  
Vol 33 (4) ◽  
pp. 976-983 ◽  
Author(s):  
Jonathan P. J. Carney ◽  
David W. Townsend ◽  
Vitaliy Rappoport ◽  
Bernard Bendriem
Keyword(s):  
Attenuation Correction ◽  
Ct Images ◽  
Ct Imaging ◽  
Pet Ct

Comparison of liver SUV using unenhanced CT versus contrast-enhanced CT for attenuation correction in 18F-FDG PET/CT

2014 ◽  
Vol 35 (5) ◽  
pp. 472-477 ◽  
Author(s):  
Edwin E.G.W. ter Voert ◽  
Hanneke W.M. van Laarhoven ◽  
Peter J.M. Kok ◽  
Wim J.G. Oyen ◽  
Eric P. Visser ◽  
...  
Keyword(s):  
Attenuation Correction ◽  
Fdg Pet ◽  
Unenhanced Ct ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Pet Ct ◽  
Enhanced Ct ◽  
18F Fdg ◽  
Fdg Pet Ct

Design of respiration averaged CT for attenuation correction of the PET data from PET/CT

2007 ◽  
Vol 34 (6Part1) ◽  
pp. 2039-2047 ◽  
Author(s):  
Pai-Chun Melinda Chi ◽  
Osama Mawlawi ◽  
Sadek A. Nehmeh ◽  
Yusuf E. Erdi ◽  
Peter A. Balter ◽  
...  
Keyword(s):  
Attenuation Correction ◽  
Pet Ct

scholarly journals Comparison of standardized uptake values measured on 18F-NaF PET/CT scans using three different tube current intensities

2015 ◽  
Vol 48 (1) ◽  
pp. 17-20 ◽  
Author(s):  
Agnes Araujo Valadares ◽  
Paulo Schiavom Duarte ◽  
Eduardo Bechtloff Woellner ◽  
George Barberio Coura-Filho ◽  
Marcelo Tatit Sapienza ◽  
...  
Keyword(s):  
Attenuation Correction ◽  
Lumbar Vertebra ◽  
Ct Scans ◽  
Femoral Diaphysis ◽  
Standardized Uptake Values ◽  
Pet Ct ◽  
Tube Current ◽  
The Mean ◽  
Humeral Diaphysis ◽  
Ct Studies

Objective: To analyze standardized uptake values (SUVs) using three different tube current intensities for attenuation correction on 18FNaF PET/CT scans. Materials and Methods: A total of 254 18F-NaF PET/CT studies were analyzed using 10, 20 and 30 mAs. The SUVs were calculated in volumes of interest (VOIs) drawn on three skeletal regions, namely, right proximal humeral diaphysis (RH), right proximal femoral diaphysis (RF), and first lumbar vertebra (LV1) in a total of 712 VOIs. The analyses covered 675 regions classified as normal (236 RH, 232 RF, and 207 LV1). Results: Mean SUV for each skeletal region was 3.8, 5.4 and 14.4 for RH, RF, and LV1, respectively. As the studies were grouped according to mAs value, the mean SUV values were 3.8, 3.9 and 3.7 for 10, 20 and 30 mAs, respectively, in the RH region; 5.4, 5.5 and 5.4 for 10, 20 and 30 mAs, respectively, in the RF region; 13.8, 14.9 and 14.5 for 10, 20 and 30 mAs, respectively, in the LV1 region. Conclusion: The three tube current values yielded similar results for SUV calculation.

scholarly journals Feasibility assessment of yttrium-90 liver radioembolization imaging using amplitude-based gated PET/CT

2018 ◽  
Vol 39 (3) ◽  
pp. 222-227
Author(s):  
Dustin R. Osborne ◽  
Shelley N. Acuff ◽  
Melissa L. Neveu ◽  
Mumtaz Syed ◽  
Austin D. Kaman ◽  
...  
Keyword(s):  
Feasibility Assessment ◽  
Gated Pet ◽  
Pet Ct ◽  
Yttrium 90
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