PERFORM Publications

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Title		Authors	PubMed ID
1	A database of magnetic resonance imaging-transcranial ultrasound co-registration	Alizadeh M; Collins DL; Kersten-Oertel M; Xiao Y;	39920905 SOH
2	Robust landmark-based brain shift correction with a Siamese neural network in ultrasound-guided brain tumor resection	Pirhadi A; Salari S; Ahmad MO; Rivaz H; Xiao Y;	36306056 PERFORM
3	DiffeoRaptor: diffeomorphic inter-modal image registration using RaPTOR	Masoumi N; Rivaz H; Ahmad MO; Xiao Y;	36173541 ENCS
4	Multimodal 3D ultrasound and CT in image-guided spinal surgery: public database and new registration algorithms	Masoumi N; Belasso CJ; Ahmad MO; Benali H; Xiao Y; Rivaz H;	33683544 PERFORM
5	ARENA: Inter-modality affine registration using evolutionary strategy.	Masoumi N, Xiao Y, Rivaz H	30535826 PERFORM
6	Gesture-based registration correction using a mobile augmented reality image-guided neurosurgery system.	Léger É, Reyes J, Drouin S, Collins DL, Popa T, Kersten-Oertel M	30800320 PERFORM

Title:	ARENA: Inter-modality affine registration using evolutionary strategy.
Authors:	Masoumi N, Xiao Y, Rivaz H
Link:	https://www.ncbi.nlm.nih.gov/pubmed/30535826?dopt=Abstract
DOI:	10.1007/s11548-018-1897-1
Publication:	International journal of computer assisted radiology and surgery
Keywords:	Affine Transformation; CMA-ES; Correlation ratio; Image registration; RESECT database; mTRE;
PMID:	30535826	Category:	Int J Comput Assist Radiol Surg	Date Added:	2019-04-15
Dept Affiliation:	PERFORM 1 PERFORM Centre, Concordia University, Montreal, Canada. n_masoum@encs.concordia.ca. 2 Department of Electrical and Computer Engineering, Concordia University, Montreal, Canada. n_masoum@encs.concordia.ca. 3 Robarts Research Institute, Western University, London, Canada. 4 PERFORM Centre, Concordia University, Montreal, Canada. 5 Department of Electrical and Computer Engineering, Concordia University, Montreal, Canada.

Description:

ARENA: Inter-modality affine registration using evolutionary strategy.

Int J Comput Assist Radiol Surg. 2019 Mar;14(3):441-450

Authors: Masoumi N, Xiao Y, Rivaz H

Abstract

PURPOSE: Image fusion of different imaging modalities renders valuable information to clinicians. In this paper, we proposed an automatic multimodal registration method to register intra-operative ultrasound images (US) to preoperative magnetic resonance images (MRI) in the context of image-guided neurosurgery.

METHODS: We employed refined correlation ratio as a similarity metric for our intensity-based image registration method. We deem MRI as the fixed image ([Formula: see text]) and US as the moving image ([Formula: see text]) and then transform [Formula: see text] to align with [Formula: see text]. We utilized the covariance matrix adaptation evolutionary strategy to find the optimal affine transformation in registration of [Formula: see text] to [Formula: see text].

RESULTS: We applied our method on the publicly available retrospective evaluation of cerebral tumors (RESECT) database and Montreal Neurological Institute's brain images of tumors for evaluation (BITE) database. We validated the results qualitatively and quantitatively. Qualitative validation is conducted (by the three authors) through overlaying pre- and post-registration US and MRI to allow visual assessment of the alignment. Quantitative validation is performed by utilizing the corresponding landmarks in the databases for the preoperative MRI and the intra-operative US. Average mean target registration error (mTRE) has been reduced from [Formula: see text] to [Formula: see text] in 22 patients in the RESECT database and from [Formula: see text] to [Formula: see text] in the BITE database. A nonparametric statistical analysis performed using the Wilcoxon rank sum test shows that there is a significant difference between pre- and post-registration mTREs with a p value of [Formula: see text] for the RESECT database and [Formula: see text] for the BITE database.

CONCLUSIONS: The proposed fully automatic registration method significantly improved the alignment of MRI and US images and can therefore be used to reduce the misalignment of US and MRI caused by brain shift, calibration errors, and patient to MRI transformation matrix.

PMID: 30535826 [PubMed - in process]

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