M. Tétrault

Publications67
h-index18
Citations1,007
Highly Influential Citations22
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Performance evaluation of the LabPET™ APD-based digital PET scanner
TLDR
The LabPETTM is a fully digital avalanche photodiode (APD) based PET scanner designed for state-of-the- art molecular and genomic imaging of small animals and demonstrated with in vivo images of rats and mice.
The Hardware and Signal Processing Architecture of LabPET™, a Small Animal APD-Based Digital PET Scanner
TLDR
A new fully digital APD-based scanner architecture is proposed wherein nuclear pulses are sampled directly at the output of the Charge Sensitive Preamplifier (CSP) with one free-running ADC per channel to explore new digital signal processing algorithms borrowed from other fields like command and control theory, as well as advanced heuristics such as neural networks.
Performance evaluation of the LabPET12, a large axial FOV APD-based digital PET scanner
The LabPET12 is the latest version of LabPET¿ avalanche photodiode (APD)-based digital scanners, having an 11.4 cm axial field of view and 9216/4608 crystals/electronic readout channels to achieve…
A Sub-Nanosecond Time Interval Detection System Using FPGA Embedded I/O Resources
TLDR
A Sub-Nanosecond Time Interval Detection System, able to overcome process and temperature (PT) variations, was designed and implemented in an FPGA and uses embedded PT invariant digital delay lines and deserializers included in I/O ports, along with a stable clock oscillator resulting in low logic usage.
Imaging performance of LabPET APD-based digital PET scanners for pre-clinical research.
TLDR
The results obtained with two energy window settings confirm the relevance of high-efficiency and high-resolution operating modes to take full advantage of the imaging capabilities of the LabPET scanners for molecular imaging applications.
TDC Array Tradeoffs in Current and Upcoming Digital SiPM Detectors for Time-of-Flight PET
Radiation detection used in positron emission tomography (PET) exploits the timing information to remove background noise and refine position measurement through time-of-flight information. Fine time…
Design of a Real-Time FPGA-Based Data Acquisition Architecture for the LabPET II: An APD-Based Scanner Dedicated to Small Animal PET Imaging
TLDR
A real-time FPGA-based digital data acquisition (DAQ) system was designed that allows event harvesting, processing and transmission to a host computer for data storage as well as system programming and calibration.
System Architecture of the LabPET Small Animal PET Scanner
To address modern molecular imaging requirements, a digital positron emission tomography (PET) scanner for small animals has been developed at Universite de Sherbrooke. Based on individual readout of…
Real time digital signal processing implementation for an APD-based PET scanner with phoswich detectors
TLDR
A highly parallel data acquisition system based on an integrated analog front-end and a high-speed fully digital signal processing section that directly samples the output of each preamplifier and feeds the sampled data into a field programmable gate array VirtexII PRO from Xilinx, which allows up to 64 channels to be processed simultaneously.
Time Discrimination Techniques Using Artificial Neural Networks for Positron Emission Tomography
Relevant information in positron emission tomography is currently being obtained mostly by analog signal-processing methods. New digital PET scanner architectures are now becoming available, which…
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