Head and Neck Imaging - Hitachi Healthcare › ... › OVAL_PPC_HeadNeckImaging.pdf · Head and...
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Copyright © 2013 by Hitachi Medical Systems America, Inc. All rights reserved. Head and Neck Imaging 3 - 8 Head and Neck Imaging Brain, Pituitary, IAC, Orbit, Sinus, and TMJ Recommended Coils and Patient Position The coils of choice for a study of the brain, pituitary, IAC, orbit, sinus, or TMJ are the WIT Posterior Head/Neck coil with the WIT Anterior Head coil attachment (figure 3-5). 1. Place the WIT Posterior Head/Neck coil at the foot of the WIT mobile table and plug the coil cable into a table connector at the foot of the table (figure 3-6). Figure 3-5. The recommended coils for brain, pituitary, IAC, orbit, sinus, or TMJ studies. Figure 3-6. Placing the WIT Posterior Head/Neck coil on the WIT mobile table. WIT Posterior Head/Neck coil
Transcript of Head and Neck Imaging - Hitachi Healthcare › ... › OVAL_PPC_HeadNeckImaging.pdf · Head and...
Copyright © 2013 by Hitachi Medical Systems America, Inc. All rights reserved.
Head and Neck Imaging
3 - 8
Head and Neck Imaging
Brain, Pituitary, IAC, Orbit, Sinus, and TMJ
Recommended Coils and Patient Position
The coils of choice for a study of the brain, pituitary, IAC, orbit, sinus, or TMJ are the WIT Posterior Head/Neck coil with the WIT Anterior Head coil attachment (fi gure 3-5).
1. Place the WIT Posterior Head/Neck coil at the foot of the WIT mobile table and plug the coil cable into a table connector at the foot of the table (fi gure 3-6).
Figure 3-5. The recommended coils for brain, pituitary, IAC, orbit, sinus, or TMJ studies.
Figure 3-6. Placing the WIT Posterior Head/Neck coil on the WIT mobile table.
WIT Posterior Head/Neck coil
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Brain, Pituitary, IAC, Orbit, Sinus, and TMJ3
2. Place the head/neck coil pad in the WIT Posterior Head/Neck coil.
3. Place the large table and spine coil pads on the WIT mobile table. The table pad setup should look like fi gure 3-7.
4. Place a sheet over the table pads and place the patient on the table in the supine, feet-fi rst postion. Position the patient’s head in the WIT Posterior Head/Neck coil with their shoulders touching the coil.
5. Place the knee cushion under the patient’s knees for comfort (fi gure 3-8).
Figure 3-7. Table pad setup.
Head/neck coil pad
Spine coil pad Large table pad
Figure 3-8. Brain, pituitary, IAC, orbit, sinus, or TMJ study patient setup.
Copyright © 2013 by Hitachi Medical Systems America, Inc. All rights reserved.
Head and Neck Imaging
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6. While keeping patient safety and comfort a priority, immobilize the patient’s head by placing the rectangular gray pads between the inside of the coil and the patient’s head (fi gure 3-9). The pads help reduce the potential for gross patient motion.
7. Place the WIT Anterior Head coil attachment (fi gure 3-10) on the WIT Posterior Head/Neck coil and gently push the attachment down to engage the latch. If necessary, adjust the claustrophobic relief mirror on the WIT Anterior Head coil attachment to the patient’s liking.
CautionTo prevent thermal injury from coil cables or lead wires, prevent them from directly contacting the patient and avoid routing them in the form of a loop.
Figure 3-9. Immobilizing the patient’s head.
Pads
Figure 3-10. Placing the WIT Anterior Head coil attachment on the WIT Posterior Head/Neck coil.
WIT Anterior Head coil
attachment
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Brain, Pituitary, IAC, Orbit, Sinus, and TMJ3
8. Press the IN/UP button on the gantry control panel to bring the table up and advance the patient into the magnet. When the table is all the way up and attached to the table trolley, the laser light turns on. Center the transaxial laser light on the patient’s nasion (fi gure 3-11).
9. Give the patient call bulb to the patient.
10. Press the AUTO button then the SET button on the gantry control panel. The tabletop automatically advances the patient to the magnet’s isocenter and stops. The imaging region centered under the lasers is now in the center of the magnetic fi eld. The longitudinal move counter display on the gantry will be zero.
Figure 3-11. Centering the coil.
Copyright © 2013 by Hitachi Medical Systems America, Inc. All rights reserved.
Head and Neck Imaging
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11. At the control console, click the Patient Registration launcher button on the Launcher toolbar to open the Patient Registration window (fi gure 3-12).
12. Complete the patient registration and open the Exam window to start scanning.
13. Figure 3-13 demonstrates the results of the initial scanogram. If your scanogram does not match these results, please reposition the patient.
Figure 3-12. Launching the Patient Registration window.
Patient Registration
launcher button
Patient Registration
window
Figure 3-13. Completed scanograms.
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Neck, Thyroid, and Vascular3
Tips and Tricks
• To obtain maximum coverage, make sure the patient is positioned as far as possible into the WIT Posterior Head/Neck coil.
• Use pads on either side of the patient’s head to help eliminate motion.
• When in the magnet bore, place pads under the patient’s arms for comfort.
• To help minimize patient warming and provide ventilation, turn the gantry fan on.
Alternate Coil
For brain, pituitary, IAC, orbit, sinus, or TMJ studies, use the WIT Posterior Head/Neck coil with the WIT Anterior Neurovascular coil attachment as an alternative.
Neck, Thyroid, and Vascular
Recommended Coils and Patient Position
The coils of choice for a study of the neck, thyroid, or head-and-neck vascular are the WIT Posterior Head/Neck coil with the WIT Anterior Neurovascular coil attachment (fi gure 3-14).
Figure 3-14. The recommended coils for neck, thyroid, or head-and-neck vascular studies.
Copyright © 2013 by Hitachi Medical Systems America, Inc. All rights reserved.
Head and Neck Imaging
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1. Place the WIT Posterior Head/Neck coil at the foot of the WIT mobile table and plug the coil cable into a table connector at the foot of the table (fi gure 3-15).
2. Place the head/neck coil pad in the WIT Posterior Head/Neck coil.
3. Place the large table and spine coil pads on the WIT mobile table. The table pad setup should look like fi gure 3-16.
4. Place a sheet over the table pads and place the patient on the table in the supine, feet-fi rst postion. Position the patient’s head in the WIT Posterior Head/Neck coil with their shoulders touching the coil.
Figure 3-15. Placing the WIT Posterior Head/Neck coil on the WIT mobile table.
WIT Posterior Head/Neck coil
Figure 3-16. Table pad setup.
Head/neck coil pad
Spine coil pad Large table pad
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Neck, Thyroid, and Vascular3
5. Place the knee cushion under the patient’s knees for comfort (fi gure 3-17).
6. While keeping patient safety and comfort a priority, immobilize the patient’s head by placing the rectangular gray pads between the inside of the coil and the patient’s head (fi gure 3-18). The pads help reduce the potential for gross patient motion.
Figure 3-17. Neck, thyroid, or head-and-neck vascular study patient setup.
Figure 3-18. Immobilizing the patient’s head.
Pads
Copyright © 2013 by Hitachi Medical Systems America, Inc. All rights reserved.
Head and Neck Imaging
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7. Place the WIT Anterior Neurovascular coil attachment (fi gure 3-19) on the WIT Posterior Head/Neck coil and gently push the attachment down to engage the latch. If necessary, adjust the claustrophobic relief mirror on the WIT Anterior Neurovascular coil attachment to the patient’s liking
CautionTo prevent thermal injury from coil cables or lead wires, prevent them from directly contacting the patient and avoid routing them in the form of a loop.
8. Press the IN/UP button on the gantry control panel to bring the table up and advance the patient into the magnet. When the table is all the way up and attached to the table trolley, the laser light turns on. Center the transaxial laser light on the patient’s hyoid bone (fi gure 3-20).
Figure 3-19. Placing the WIT Anterior Neurovascular coil attachment on the WIT Posterior Head/Neck coil.
WIT Anterior Neurovascular coil attachment
Figure 3-20. Centering the coil.
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Neck, Thyroid, and Vascular3
9. Give the patient call bulb to the patient.
10. Press the AUTO button then the SET button on the gantry control panel. The tabletop automatically advances the patient to the magnet’s isocenter and stops. The imaging region centered under the lasers is now in the center of the magnetic fi eld. The longitudinal move counter display on the gantry will be zero.
11. At the control console, click the Patient Registration launcher button on the Launcher toolbar to open the Patient Registration window (fi gure 3-21).
12. Complete the patient registration and open the Exam window to start scanning.
13. Figure 3-22 demonstrates the results of the initial scanogram. If your scanogram does not match these results, please reposition the patient.
Figure 3-21. Launching the Patient Registration window.
Patient Registration
launcher button
Patient Registration
window
Figure 3-22. Completed scanograms.
Copyright © 2013 by Hitachi Medical Systems America, Inc. All rights reserved.
Head and Neck Imaging
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Tips and Tricks
• To obtain maximum coverage, make sure the patient is positioned as far as possible into the WIT Posterior Head/Neck coil.
• Adjust the claustrophobic relief mirror on the WIT Anterior Head coil attachment to increase patient comfort.
• Use pads on either side of the patient’s head to help eliminate motion.
• When in the magnet bore, place pads under the patient’s arms for comfort.
• To help minimize patient warming and provide ventilation, turn the gantry fan on.
Alternate Coils
For neck, thyroid, or head-and-neck vascular studies, use the WIT Posterior Head/Neck coil with the WIT Anterior Neck coil attachment as an alternative. To position this alternate coil setup, refer to step 8 of the C-spine positioning procedure on page 3-22.
