Deriving adaptive MRF coefficients from previous normal-dose CT scan for low-dose image reconstruction via penalized weighted least-squares minimization

Medical Physics

Volumn 41, Issue 4, 2014, Pages

  Zhang, Hao ^a,b   Han, Hao ^a   Wang, Jing ^c   Ma, Jianhua ^a,d   Liu, Yan ^a   Moore, William ^a   Liang, Zhengrong ^a,b  

^a STONY BROOK UNIVERSITY   (United States)

^b St Francis Hospital The Heart Center   (United States)

^c UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER   (United States)

^d SOUTHERN MEDICAL UNIVERSITY   (China)

Author keywords

low dose CT; Markov random field; penalized weighted least squares; weighting coefficients

Indexed keywords

EDGE DETECTION; HOSPITAL DATA PROCESSING; IMAGE ENHANCEMENT; IMAGE QUALITY; IMAGE RECONSTRUCTION; MAGNETORHEOLOGICAL FLUIDS; MARKOV PROCESSES; NOISE ABATEMENT; NUMBER THEORY; PHOTODEGRADATION; STRUCTURAL FRAMES; X RAY TUBES;

COEFFICIENTS DETERMINATION; FILTERED BACK-PROJECTION METHODS; IMAGE-GUIDED INTERVENTION; LOW-DOSE CT; MARKOV RANDOM FIELDS; PENALIZED WEIGHTED LEAST SQUARES; RECONSTRUCTION FRAMEWORKS; WEIGHTING COEFFICIENT;

COMPUTERIZED TOMOGRAPHY;

ALGORITHM; ARTICLE; COMPUTER ASSISTED TOMOGRAPHY; CORRELATION COEFFICIENT; IMAGE RECONSTRUCTION; MARKOV RANDOM FIELD; NOISE REDUCTION; PENALIZED WEIGHTED LEAST SQUARES; POISSON DISTRIBUTION; PREDICTION; PRESERVATION; REGRESSION ANALYSIS; HUMAN; IMAGE PROCESSING; IMAGE QUALITY; PROBABILITY; PROCEDURES; RADIATION DOSE; RADIOGRAPHY; TRUNK;

HUMANS; IMAGE PROCESSING, COMPUTER-ASSISTED; LEAST-SQUARES ANALYSIS; MARKOV CHAINS; PHANTOMS, IMAGING; RADIATION DOSAGE; TOMOGRAPHY, X-RAY COMPUTED; TORSO;

EID: 84897124751     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.4869160     Document Type: Article

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