G	Graph
V	Vertex of Graph
E	Edge of Graph
$E_i$	The i-th Edge of Graph
$w_i$	Weight of the i-th Edge
s	Starting point(initial vertex)
$d\left(s\right)$	Initial distance of starting point
S	The set of vertices with known shortest path
Q	The set of vertices not in S
∅	Empty set
u	Vertex of shortest path in Q
${ADJ}_u$	The set of neighbor vertices of u
v	The element of ${ADJ}_u$
3D	three dimensional
CT	Computed Tomography
MR	Magnetic Resonance
MRI	Magnetic Resonance Imaging
US	ultrasound
OCT	Optical Coherence Tomography
PET	Positron Emission computed Tomography
DICOM	Digital Imaging and Communications in Medicine
ROI	Region of Interest
ACM	active contour model
CNN	Convolutional Neural Networks
RRT*	Rapidly exploring Random Tree Star
DT	Distance Transform
DL	deep learning
FMM	Fast Marching Method
GWDT	Gray Weighted Distance Transform
ITK	The Insight Toolkit
VTK	The Visualization Toolkit
MITK	The Medical Imaging Interaction Toolkit
TP	true positives
FP	false positives
TN	true negatives
FN	false negatives
TPR	true positive rate
FPR	false positive rate
FNR	false negative rate
RMSE	root mean standard error
HD	Hausdorff distance
SLIVER07	the Segmentation of the Liver Competition 2007
LiTS	Liver Tumor Segmentation
CHAOS	Combined (CT-MR) Healthy Abdominal Organ Segmentation
3D-IRCADb-01	3D Image Reconstruction for Comparison of Algorithm Database
TCGA-LIHC	The Cancer Genome Atlas Liver Hepatocellular Carcinoma
MSD	Medical Segmentation Decathlon
ISBI	The IEEE International Symposium on Biomedical Imaging
MICCAI	International Conference on Medical Image Computing and Computer
	Assisted Intervention