Cited by 213Advanced MRI Techniques and ApplicationsMedical Image Segmentation TechniquesBrain Tumor Detection and Classification

Random forest regression for magnetic resonance image synthesis

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Jog, Amod, Carass, Aaron, Roy, Snehashis, Pham, Dzung L., Prince, Jerry L.·2017·Medical Image Analysis

Abstract

By choosing different pulse sequences and their parameters, magnetic resonance imaging (MRI) can generate a large variety of tissue contrasts. This very flexibility, however, can yield inconsistencies with MRI acquisitions across datasets or scanning sessions that can in turn cause inconsistent automated image analysis. Although image synthesis of MR images has been shown to be helpful in addressing this problem, an inability to synthesize both T 2-weighted brain images that include the skull and FLuid Attenuated Inversion Recovery (FLAIR) images has been reported. The method described herein, called REPLICA, addresses these limitations. REPLICA is a supervised random forest image synthesis approach that learns a nonlinear regression to predict intensities of alternate tissue contrasts given specific input tissue contrasts. Experimental results include direct image comparisons between synthetic and real images, results from image analysis tasks on both synthetic and real images, and comparison against other state-of-the-art image synthesis methods. REPLICA is computationally fast, and is shown to be comparable to other methods on tasks they are able to perform. Additionally REPLICA has the capability to synthesize both T 2-weighted images of the full head and FLAIR images, and perform intensity standardization between different imaging datasets.

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  1. Bahrami Khosro Shi Feng Zong Xiaopeng Shin Hae Won An Hongyu Shen Dinggang 2015 Medical Image Computing and Computer-Assisted Intervention – MICCAI 2015 18th International Conference Munich, Germany October 5–9, 2015 Proceedings, Part II Springer International Publishing 659 666 PMC6085103 30101232

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Authors
Jog, A., Carass, A., Roy, S., Pham, D. L., & Prince, J. L.
Affiliations
  • Johns Hopkins University (US)
  • Henry M. Jackson Foundation (US)
Corresponding author
Jog, Amod
Venue
Medical Image Analysis
Publisher
Elsevier BV
Published
2017-01
Volume
35
Pages
475-488
ISSN
1361-8415 (ISSN-L)
OpenAlex
W2517395172
Cited by
212
References
64
Citations by year
2026: 12 · 2025: 24 · 2024: 29 · 2023: 25 · 2022: 20 · 2021: 39 · 2020: 25 · 2019: 14 · 2018: 14 · 2017: 9 · 2016: 1
FWCI
10.99
Type
journal article
Language
en
Open access
Locations
  • Medical Image Analysis (acceptedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • NIH (R21 EB012765)
  • NIBIB (R01 EB017743)
  • NINDS (R01 NS070906)
  • Department of Defense
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Medical Image Segmentation Techniques
  • Life Sciences › Neuroscience › Neurology › Brain Tumor Detection and Classification
Keywords
MRI image synthesis, random forest regression, replicas, tissue contrast, pulse sequences
MeSH terms
Algorithms, Humans, Image Enhancement, Magnetic Resonance Imaging, Datasets as Topic

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