Evidence map›Paper›PMID 37033460›Full record

ArticleArXiv2024

Simultaneous activity and attenuation estimation in TOF-PET with TV-constrained nonconvex optimization.

Zhimei Ren, Emil Y Sidky, Rina Foygel Barber, Chien-Min Kao, Xiaochuan Pan

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In one paragraph

Article in ArXiv, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Zhimei RenDept. of Statistics and Data Science, University of Pennsylvania.
Emil Y SidkyDept. of Radiology, University of Chicago.
Rina Foygel BarberDept. of Statistics, University of Chicago.
Chien-Min KaoDept. of Radiology, University of Chicago.
Xiaochuan PanDept. of Radiology, University of Chicago.

Funding

Advanced iterative image reconstruction for digital breast tomosynthesis - Resubmission 01R01EB026282 · NIBIB · UNIVERSITY OF CHICAGO · PI PAN, XIAOCHUAN, SIDKY, EMIL Y · 2018 to 2021
$2.1M
A preclinical integrated PET/EPR imaging system-Rev3R01EB029948 · NIBIB · UNIVERSITY OF CHICAGO · PI EPEL, BORIS, KAO, CHIEN-MIN · 2020 to 2023
$1.7M
Spectral CT metal artifact correctionR01EB023968 · NIBIB · MARQUETTE UNIVERSITY · PI SCHMIDT, TALY GILAT, SIDKY, EMIL Y · 2019 to 2022
$1.4M
Algorithm-Enabled Auto-Calibrating Quantitative Dual-Energy CTR21CA263660 · NCI · UNIVERSITY OF CHICAGO · PI PAN, XIAOCHUAN · 2022 to 2023
$414k
NCI NIH HHS R21 CA263660NIBIB NIH HHS R01 EB023968NIBIB NIH HHS R01 EB026282NIBIB NIH HHS R01 EB029948
6 · The paper itself

Abstract

An alternating direction method of multipliers (ADMM) framework is developed for nonsmooth biconvex optimization for inverse problems in imaging. In particular, the simultaneous estimation of activity and attenuation (SAA) problem in time-of-flight positron emission tomography (TOF-PET) has such a structure when maximum likelihood estimation (MLE) is employed. The ADMM framework is applied to MLE for SAA in TOF-PET, resulting in the ADMM-SAA algorithm. This algorithm is extended by imposing total variation (TV) constraints on both the activity and attenuation map, resulting in the ADMM-TVSAA algorithm. The performance of this algorithm is illustrated using the penalized maximum likelihood activity and attenuation estimation (P-MLAA) algorithm as a reference. Additional results on step-size tuning and on the use of unconstrained ADMM-SAA are presented in the previous arXiv submission: arXiv:2303.17042v1.

Indexed as

alternating direction method of multipliersImage reconstruction in TOF-PETlarge-scale nonconvex optimizationsimultaneous activity/attenuation estimation

Identifiers

PMID37033460
PMCPMC10081343

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.