Table 1.

Challenges in fiber tractography.

YEAR	CONFEREN CE	NAME	VALIDATIO N	STRATEGY	THE CHALLENG E	INFORMATION
2009	MICCAI	FiberCup	Tractography	Physical Phantom	Find 16 existing connections	http://www.tractometer.org/original fibercu p/
2011- 2015	MICCAI	DTI Challenge	Tractography	In Vivo Data reviewed by neurosurgeo ns	Reconstruct Pyramidal Tract in 4 Neurosurgic al Cases	http://dti-challenge.org
2012	ISBI	HARDI Reconstructi on Challenge	Fiber orientation	Simulated orientation fields	Estimate local single and crossing fiber configuratio ns	http://hardi.epfl.ch/static/events/2012_ISBI/
2013	ISBI	Tractometer: HARDI Reconstructi on Challenge	Local modeling evaluated with tractography	Physical Phantom + Online evaluation tool	Recover valid connections and fiber bundles	http://hardi.epfl.ch/static/events/2013_ISBI/index.html
2015	ISMRM	Tractography Challenge	Tractography	Simulated diffusion data based on in vivo human acqusition	Find 25 ground truth bundles	http://www.tractometer.org/ismrm_2015_challenge/
2017	ISMRM	TraCED Reproducibili ty Challenge	Tractography Reproducibili ty	Scan-rescan data of single subject on two scanners	Submit most reproducible tractogram for 10 fiber structures	https://my.vanderbilt.edu/ismrmtraced2017/
2018	ISBI	3D VoTEM	Tractography	Physical Phantom + Histological Validation	Find ground truth bundles and connections in all datasets	https://my.vanderbilt.edu/votem/