cornerstone-tools-freehand-scissors-threshold-segmentation

This tool allows you to segment pixels within an a shape drawn with freehand by specifying a minimum and maximum threshold value. Additionally, it can segment multiple slices at once by specifying the depth, such as 10 slices.

The above gifs demonstrates the threshold range being set to [200, 1000], [-29, 150] and the depth set to 10 slices, showcasing the tool's ability to segment multiple slices while respecting the threshold range.

Dependencies

• cornerstone-core
• cornerstone-tools

A live demo of the threshold brush tool is available for trying out.

LIVE DEMONSTRATION

While it is possible to segment over 300 slices at once, it is recommended to stay within the range of 50-150 slices, depending on your computer's specs.

Installation

$ npm i "cornerstone-tools-freehand-scissors-threshold-segmentation"

Usage

import FreehandScissorsThresholdSegmentation from "cornerstone-tools-freehand-scissors-threshold-segmentation";

cornerstoneTools.addToolForElement(element, FreehandScissorsThresholdSegmentation, {configuration: {thresholdLow: 200 , thresholdHigh: 1000, numberOfSlices: 10, inside: true}});
cornerstoneTools.setToolActive("FreehandScissorsThresholdSegmentation", { mouseButtonMask: 1 });

The threshold values, number of slices, and whether the segmentation is filled inside or outside the ROI rectangle can be modified on the fly.

let config = cornerstoneTools.store.state.tools.filter(tool => tool.name == 'FreehandScissorsThresholdSegmentation')[0].configuration
config.thresholdLow = -29
config.thresholdHigh = 150
config.numberOfSlices = 10
config.inside = true

Common thresholds

Left Psoas : [-29, 150]
Right Psoas : [-29, 150]
Muscle : [-29, 150]
Sub Fat : [-190, -30]
Vis Fat : [-190, -30]
Bone : [200, 1000]

LICENSE

MIT