icatvision Software Manual

Transcription

1 University of Minnesota School of Dentistry icatvision Software Manual April 19, 2013 Mansur Ahmad, BDS, PhD Associate Professor, University of Minnesota School of Dentistry Director, American Board of Oral and Maxillofacial Radiology

2 How to use the data disk in your computer: The disk contains icatvision.exe (version ), the program to view the cone beam CT cases provided in the disk. 1. Create a folder in C drive: ImageRoot 2. Drag all the folders from CD in to ImageRoot folder. In future, whenever you get a CD from this office, please move the patient data into this folder. 3. Drag icatvision program to desktop 4. Click on the icatvision program 5. A screen appears that a newer version is available. Please ignore that. Click No. 6. A screen appears as on the right without any name in the patient screen. Page 2 of 11

3 7. From Tools pull-down Menu, select Setup 8. Direct the DICOM Database Root Folder, by clicking Browse C:\imageRoot Click OK. 9. icatvision Program will ask to close. 10. Restart the program 11. Top left window should show a list of scans in your computer. This may take a few minutes to fully populate if you have a large number of cases. Page 3 of 11

4 Starting a New Case 1. Click on any case on Window 1 2. On Window 2, click the file type CT. (In future, with cases sent to you, you might see another option as RAW. Ignore the RAW file) 3. Now the case will load. Depending on the speed of your computer and the file size of the scan, it might take a minute or less. Let the case load completely. Once fully loaded, Windows 3, 4, 5, 6 and 7 will populate as above. 4. Now we will try to manipulate the case Page 4 of 11

5 Manipulation of a case 1. On most of the windows, icatvision provides three tools based on the location of the cursor. The cursor will change its appearance when it is in the particular location and will perform the specific functions. 2. Let us select Window 4. Bring your cursor to the bottom right corner. The cursor will change its shape and become curved. Holding your mouse button, move the mouse to make the Frankfort plane horizontal. This is the Rotation function. The images in Windows 3, 5 and 6 will also change. 3. Now, let us select Window 5. The cursor will change to a curved shape when in the right bottom corner. Rotate the image to make the head upright. The images in Windows 3, 4 and 6 will also change. Page 5 of 11

6 4. Hold the green line in Windows 4 or 5, and drag it to the levels of CEJ (best fit) of the mandibular arch. 5. Now we will move to Window 6, and create the best fit focal trough. Click and hold each BLUE DOT, and move to the pulp chamber (best fit). The panoramic view on Window 3 will now change. You can do similar manipulation with the red line (for the maxillary arch). Most of the time, I do not use the red line UNLESS a severe Hint: discrepancy exists between the arches. 6. Once you are satisfied with panoramic view in Window 3, save these adjustments by RIGHT CLICKING on any image window and selecting Save this workup. On the next screen that appears, select a name for this work up. Any time you make a major change, save that workup. Hint: If the green or red lines on Window 6 are excessively squiggly, right click on window 6, choose Select Panoramic Method, and then select Manual Arch tracing. A new window appears. Unselect Maxilla and Mandible. Again, right click on window 6, choose Select Panoramic Method, and then select Manual Arch tracing. A new window appears. Select Maxilla and Mandible. The new lines will be smoother to manipulate. (A paid option is Tru-Pan, not available on this free download of icatvision) Page 6 of 11

7 Inspecting individual tooth, orientation, periapical areas, etc. 1. Double click on Window 3 (panoramic view), which will lead you to a new screen. 2. On the new panoramic view, several tools are available. 3. First we will select the oblique ladder. Click on the blue closed circle. It says 15mm. That is the default thickness of the focal trough. Holding the blue circle, drag your mouse. I prefer it to be 20 mm, so that I can see both maxillary and arch mandibular arch. 4. Bring your cursor to the bottom of the panoramic window. When the cursor changes to W, hold and move your mouse to select the right density and contrast. 5. On the bottom windows are cross sections of the teeth. The default is the anterior teeth. Now we will select individual tooth. 6. On the panoramic view select the horizontal ladder. This is at the bottom of the panoramic screen. Bring your cursor the center open blue circle. By clicking and holding on the open circle, you will be able to move the ladder. By moving the ladder, you may select individual teeth or location of the arch. 7. By selecting the closed blue circle (on the right side of the ladder) on the horizontal ladder, you can widen or narrow the field of view. Page 7 of 11

8 8. To move from maxillary to mandibular arch, select the vertical ladder. Click and hold on the open blue circle at the center of the ladder. Drag this open circle up or down to select your arch. 9. On the lower half of the computer screens are the slices of tooth/teeth. Based on the location of the cursor, you may change magnification/density/contrast. If you make changes in one window, other windows will automatically change. HINT To go back to the Preview (first) screen, bring your cursor to the upper left corner of the computer screen. The shape of the cursor will change to a large X. Click now and you are back to the main windows. Another way to return to the Preview or any other screen, select Screen on the toolbar. Select your choice from the pull down menu. Page 8 of 11

9 Temporomandibular joint evaluation 1. From the first main screen, double click on Window 6. It will take you to a new set of windows. 2. On the new set of windows, bring your cursor to the Upper Left window, which looks something like the screen on the right. Drag the blue lines down or up to the level of the condyles. 3. Bring your cursor to the axial view window. This screen is at the upper center. You may have to drag the image (position tool is on the upper left corner of any window) to see the condyles better. 4. Align the blue lines to follow the main axis of the condyle. Bring the line at the middle of the axial view of the condyles. Repeat the step on the other condyle. You will see the coronal views appear on the right and left of the center screen. 5. The bottom panels of images show the sagittal views, while two views on the top row show the axially corrected coronal views. HINT If you want to see multiple axially corrected coronal views, click the tiny red open circle on the axial view. All the images will automatically change. Page 9 of 11

10 Multiplanar Views 1. From the main window, double click on Window 5. This will lead you to a new set of Windows. 2. This new view has four windows. Of these three windows are now populated. These are axial, coronal and sagittal views. 3 On each window, you have two ladders, one for selecting left to right, and another for selecting anterior to posterior. 4. You may widen these ladders to include more tissue data in the view. You can make the image as a lateral skull radiograph! One o f the best hidden tools in icatvision is the Line Tool. Right click on any of the three populated window. Select Line. Now click HINT and drag your mouse to select any structure in any orientation. The fourth (empty) window is now populated. After completing the line, do not release the mouse; try moving the mouse in different directions! Page 10 of 11

11 Saving an image: 1. Right click on any image. 2. Select Save as JPEG. 3. To find the saved JPEG image, right click on any window, select Open Output folder. Measurement Tool: 1. Right click on any image. 2. Select Distance. 3. The cursor changes and becomes ruler. Filter Tool: 1. Any image can be viewed in different preset filters: Normal, Sharpen Mild, Hard, Sharp and Very sharp. 2. Right click on any image. 3. Select Set Filter. 4. Select the level of sharpness. Estimating Nerve Canal: We will work on a few cases to learn how to easily trace an alveolar canal. Page 11 of 11