Changes of 18 F‐fluoro‐2‐deoxyglucose position‐emission tomography findings by the eradication of Helicobacter pylori in the stomach

Helicobacter ◽  
2021 ◽  
Author(s):  
Kyoko Marubashi ◽  
Satoshi Takakusagi ◽  
Yozo Yokoyama ◽  
Kazuko Kizawa ◽  
Takashi Kosone ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Emission Tomography ◽  
Position Emission Tomography

Acquisition Protocols to Optimize 68Ga-DOTA-NOC Position Emission Tomography/Computer Tomography Image Quality Based on Patient Body Mass Index and Injected Dose

2020 ◽  
Vol 10 (2) ◽  
pp. 508-514
Author(s):  
Lei Xu ◽  
Lei Lei Zhou ◽  
Zhenyu Zhao ◽  
Qingle Meng ◽  
Rui Yang ◽  
...  
Keyword(s):  
Image Quality ◽  
Dose Group ◽  
Group Versus ◽  
Normal Weight ◽  
Emission Tomography ◽  
Acquisition Time ◽  
Position Emission Tomography ◽  
Weight Group ◽  
Pet Ct ◽  
Overweight Group

Background: The choice of 68Ga-DOTA-1-Nal3-octreotide (68Ga-DOTA-NOC) injected dose and Position emission tomography/computer tomography (PET/CT) acquisition time is still a challenge for obtaining consistently high-quality PET image. Objective: To determine the optimal acquisition protocols based on patient body mass index (BMI) and the injected dose per kilogram for 68Ga-DOTA-NOC PET/CT imaging. Patients and Methods: This was a retrospective analysis of 51 patients (21 males and 30 females) who underwent clinical 68Ga-DOTANOC PET/CT imaging from November 2016 to March 2018 in Nanjing first hospital, the average BMI of these patients was 23.18 ± 3.45 kg/m2 with injected dose of 39.55–110.11 MBq. The study population was classified into groups based on Chinese standard BMI and injected dose. PET image quality and acquisition time were evaluated by coefficient of variance (CV) in the liver slice. Results: (1) The CV significantly increased with increasing weight and BMI (r = 0.647, 0.483, all P < 0.01), and significantly decreased with increasing injected dose per kilogram (r = 0 695, P < 0.01). (2) The CV differed significantly among 4 BMI-based groups, except for normal-weight group versus overweight group and overweight group versus obese group (P < 0.01), and the ratio of overweight group and obese group to normal weight group was approximately 1.1 and 1.2, respectively. Meanwhile, the CV had a significant statistical difference among 3 injected dose per kilogram groups (P < 0.01), and the ratio of that for low dose group and high dose group to moderate dose group was approximately 1.2 and 0.8. Conclusion: The findings showed a feasibility of obtaining consistently high-quality PET image at low injected dose and shorter acquisition time. Estimation of optimal acquisition time and injected dose using CV is valid in improving PET image quality, which can provide reference for the establishment and promotion of 68Ga-DOTA-NOC imaging protocols in China.

2-deoxy-2-[18F]fluoro-d-galactose: A new tracer for the measurement of galactose metabolism in the liver by position emission tomography

1986 ◽  
Vol 11 (11) ◽  
Author(s):  
Hiroshi Fukuda ◽  
Taiju Matsuzawa ◽  
Masao Tada ◽  
Toshihiro Takahashi ◽  
Kiichi Ishiwata ◽  
...  
Keyword(s):  
Emission Tomography ◽  
Position Emission Tomography ◽  
Galactose Metabolism

Stone Tool-Making and Brain Activation: Position Emission Tomography (PET) Studies

2000 ◽  
Vol 27 (12) ◽  
pp. 1215-1223 ◽  
Author(s):  
Dietrich Stout ◽  
Nicholas Toth ◽  
Kathy Schick ◽  
Julie Stout ◽  
Gary Hutchins
Keyword(s):  
Brain Activation ◽  
Emission Tomography ◽  
Stone Tool ◽  
Position Emission Tomography

scholarly journals Recent biomarker approaches in the diagnosis of frontotemporal lobar degeneration/Neurochemische Ansätze in der Diagnose der Frontotemporalen Lobärdegeneration

2012 ◽  
Vol 36 (1) ◽  
Author(s):  
Emily Feneberg ◽  
Petra Steinacker ◽  
Stefan Lehnert ◽  
Manuela Neumann ◽  
Markus Otto
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Frontotemporal Lobar Degeneration ◽  
Close Correlation ◽  
Emission Tomography ◽  
Position Emission Tomography ◽  
Resonance Imaging ◽  
Underlying Pathology ◽  
Neuroimaging Techniques

AbstractFrontotemporal lobar degeneration (FTLD) is a heterogeneous group of syndromes with different symptoms. Frontotemporal lobar degeneration is mostly used as a clinical umbrella term for different diseases. In some clinical subtypes of the FTLD spectrum, a close correlation with underlying pathology can be found. Neuroimaging techniques, such as magnetic resonance imaging and position emission tomography help to detect neuroanatomical lesions and therefore obtain relevance for in vivo prediction of neurodegeneration. However, there is still a lack of neurochemical biomarkers helping to differentiate between underlying histopathologies. The following review gives an overview about present neurochemical biomarker studies and perspective approaches in the diagnosis of FTLD.

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