**Note:** This is a complex task that requires a deep understanding of Ohif, 3D Slicer, and web development. The provided code is a high-level example of how to integrate 3D Slicer with Ohif, and may require modifications to fit your specific use case.
**Step 1: Set up Ohif**
Create a new Ohif project by cloning the Ohif repository and installing the necessary dependencies:
```bash
git clone https://github.com/OHIF/ohif.git
cd ohif
npm install
```
**Step 2: Set up 3D Slicer**
Download and install 3D Slicer from the official website: <https://www.slicer.org/>
**Step 3: Create a custom Ohif extension**
Create a new folder `ohif-3dslicer-extension` and create the following files:
**`package.json`**
```json
{
"name": "ohif-3dslicer-extension",
"version": "1.0.0",
"description": "Ohif extension for 3D Slicer integration",
"main": "index.js",
"scripts": {
"build": "webpack"
},
"dependencies": {
"ohif": "^2.0.0",
"three": "^0.121.1"
}
}
```
**`index.js`**
```javascript
import {.extension} from 'ohif';
import * as three from 'three';
class Ohif3DSlicerExtension {
constructor() {
this.name = 'Ohif 3D Slicer Extension';
this.description = 'Integrates 3D Slicer with Ohif';
}
async init({services, stores}) {
// Get the Ohif services and stores
const {dicomWebClient, HangingProtocolService} = services;
const {studyMetadataStore, seriesMetadataStore} = stores;
// Create a new 3D Slicer instance
const slicer = new Slicer(dicomWebClient, HangingProtocolService);
// Register the 3D Slicer instance with Ohif
Ohif.Extension.register(slicer);
// Create a custom 3D curved MPR view
const curvedMprView = new CurvedMprView(slicer, studyMetadataStore, seriesMetadataStore);
Ohif.Viewer.addViewport(curvedMprView);
}
}
// Register the extension with Ohif
Ohif.Extension.register(Ohif3DSlicerExtension);
```
**`Slicer.js`**
```javascript
import axios from 'axios';
class Slicer {
constructor(dicomWebClient, HangingProtocolService) {
this.dicomWebClient = dicomWebClient;
this.HangingProtocolService = HangingProtocolService;
this.slicerUrl = 'http://localhost:8080/api/v1'; // Replace with your 3D Slicer instance URL
}
async getDicomData(studyInstanceUid, seriesInstanceUid) {
const response = await axios.get(`${this.slicerUrl}/dicom/data`, {
params: {
studyInstanceUid,
seriesInstanceUid
}
});
return response.data;
}
async get3DMetadata(studyInstanceUid, seriesInstanceUid) {
const response = await axios.get(`${this.slicerUrl}/dicom/metadata`, {
params: {
studyInstanceUid,
seriesInstanceUid
}
});
return response.data;
}
async getCurvedMpr(studyInstanceUid, seriesInstanceUid, sliceNumber) {
const response = await axios.get(`${this.slicerUrl}/curved-mpr`, {
params: {
studyInstanceUid,
seriesInstanceUid,
sliceNumber
}
});
return response.data;
}
}
```
**`CurvedMprView.js`**
```javascript
import { Viewport } from 'ohif';
import * as three from 'three';
class CurvedMprView extends Viewport {
constructor(slicer, studyMetadataStore, seriesMetadataStore) {
super();
this.slicer = slicer;
this.studyMetadataStore = studyMetadataStore;
this.seriesMetadataStore = seriesMetadataStore;
}
async init() {
// Initialize the Three.js scene
this.scene = new three.Scene();
this.camera = new three.PerspectiveCamera(75, 1, 0.1, 1000);
this.renderer = new three.WebGLRenderer({
canvas: this.element,
antialias: true
});
}
async update() {
// Get the current study and series UIDS
const studyInstanceUid = this.studyMetadataStore.getActiveStudy(). StudyInstanceUID;
const seriesInstanceUid = this.seriesMetadataStore.getActiveSeries(). SeriesInstanceUID;
// Get the 3D metadata and curved MPR data from 3D Slicer
const metadata = await this.slicer.get3DMetadata(studyInstanceUid, seriesInstanceUid);
const curvedMprData = await this.slicer.getCurvedMpr(studyInstanceUid, seriesInstanceUid, 0);
// Render the curved MPR
this.renderer.clear();
this.renderer.render(this.scene, this.camera);
}
}
```
**Step 4: Build and run the Ohif extension**
Run the following commands to build and run the Ohif extension:
```bash
npm install
npm run build
node index.js
```
**Step 5: Configure Ohif to use the custom extension**
Create a new file `ohif-config.json` and add the following configuration:
```json
{
"extensions": [
{
"name": "Ohif 3D Slicer Extension",
"path": "./ohif-3dslicer-extension/index.js"
}
]
}
```
**Step 6: Start Ohif**
Run the following command to start Ohif with the custom extension:
```bash
ohif --config ohif-config.json
```
Open a web browser and navigate to <http://localhost:3000> to view the Ohif interface with the 3D curved MPR view integrated with 3D Slicer.
Please note that this is a high-level example, and you will need to modify the code to fit your specific use case. Additionally, this example assumes that 3D Slicer is running on the same machine as Ohif, and that the 3D Slicer API is exposed at <http://localhost:8080/api/v1>. You may need to modify the `Slicer.js` file to fit your specific 3D Slicer setup.
I hope this helps! Let me know if you have any further questions.
Uppercopy
Mini tools
