User profiles for Syahir Mansor

MOHD SYAHIR MANSOR

Advance Medical and Dental Institute (AMDI), Penang, Malaysia
Verified email at usm.my
Cited by 174

Impact of PET/CT system, reconstruction protocol, data analysis method, and repositioning on PET/CT precision: An experimental evaluation using an oncology and …

S Mansor, E Pfaehler, D Heijtel, MA Lodge… - Medical …, 2017 - Wiley Online Library
Purpose In longitudinal oncological and brain PET / CT studies, it is important to understand
the repeatability of quantitative PET metrics in order to assess change in tracer uptake. The …

In Vitro and In Vivo Investigation of S1PR1 Expression in the Central Nervous System Using [3H]CS1P1 and [11C]CS1P1

H Jiang, S Joshi, H Liu, S Mansor, L Qiu… - ACS chemical …, 2021 - ACS Publications
Sphingosine-1-phosphate receptor 1 (S1PR1) is ubiquitously expressed among all tissues
and plays key roles in many physiological and cellular processes. In the central nervous …

Phase 1 evaluation of 11C-CS1P1 to assess safety and dosimetry in human participants

…, J Rajamanikam, H Zhao, S Mansor… - Journal of Nuclear …, 2022 - Soc Nuclear Med
This study evaluated the safety, dosimetry, and characteristics of 3-((2-fluoro-4-(5-(2′-methyl-2-(trifluoromethyl)-[1,1′-biphenyl]-4-yl)-1,2,4-oxadiazol-3-yl)benzyl)(methyl-
11 C)amino)…

Quantification of dynamic 11C-phenytoin PET studies

S Mansor, R Boellaard, FE Froklage… - Journal of Nuclear …, 2015 - Soc Nuclear Med
The overexpression of P-glycoprotein (Pgp) is thought to be an important mechanism of
pharmacoresistance in epilepsy. Recently, 11 C-phenytoin has been evaluated preclinically as a …

Spatially constrained kinetic modeling with dual reference tissues improves 18F-flortaucipir PET in studies of Alzheimer disease

Y Zhou, S Flores, S Mansor, RC Hornbeck, Z Tu… - European journal of …, 2021 - Springer
Purpose Recent studies have shown that standard compartmental models using plasma
input or the cerebellum reference tissue input are generally not reliable for quantifying tau …

Impact of resolution recovery in quantitative 99mTc SPECT/CT cardiac phantom studies

FS Ismail, S Mansor - Journal of Medical Imaging and Radiation Sciences, 2019 - Elsevier
Background The aim of this study was to validate the quantitative accuracy of single photon
emission computed tomography with computed tomography (SPECT/CT) images in cardiac …

Comparison of HRRT and HR+ Scanners for Quantitative (R)-[11C]verapamil, [11C]raclopride and [11C]flumazenil Brain Studies

FHP van Velden, SM Mansor, DME van Assema… - Molecular imaging and …, 2015 - Springer
Purpose This study was conducted to directly compare the high-resolution research
tomograph (HRRT) (high-resolution brain) and HR+ (standard whole-body) positron emission …

[PDF][PDF] Effectiveness of Robotic Stereotactic Radiotherapy in Patients Undergoing Re-irradiation: A Review

ABM Yoosuf, S Alshehri, MZA Aziz, S Mansor… - Cureus, 2023 - cureus.com
Stereotactic ablative radiotherapy (SABR) is a possible treatment option for patients who
develop recurrence within or at the edge of a previously irradiated volume. Robotic stereotactic …

Accuracy assessment of SUV measurements in SPECT/CT: a phantom study

…, H Yahya, KN Jaafar, S Mansor - Journal of nuclear …, 2021 - Soc Nuclear Med
Advances in iterative image reconstruction enable absolute quantification of SPECT/CT
studies by incorporating compensations for collimator–detector response, attenuation, and …

[PDF][PDF] Re-irradiation Using Stereotactic Radiotherapy: A Bibliometric Analysis of Research Trends

ABM Yoosuf, MA Khan, MZA Aziz, S Mansor… - Cureus, 2023 - cureus.com
The objective of this research is to conduct a comprehensive bibliometric analysis using the
Web of Science Core Collection (WoSCC) to examine the current research topics and trends …