JMRS ASMIRT CPD Q&A - Radiation Therapy

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JMRS ASMIRT CPD Q&A - Radiation Therapy - June 2022

Maximise your CPD by reading the following selected Radiation Therapy article and answer the five questions.

Continuing Professional Development Q&A - Radiation Therapy

Evaluation of optical 3D scanning system for radiotherapy use

Crowe S, Luscombe J, Maxwell S, Simpson-Page E, Poroa T, Wilks R, Li W, Cleland S, Chan P, Lin C, Kairn T.
J Med Radiat Sci. (2022)

https://doi.org/10.1002/jmrs.562

1. What was the average imaging time for each anatomical scan? *

1 point

a. Less than 1 minute

b. Between 1 and 5 minutes

c. Between 6 and 15 minutes

d. More than 16 minutes

2. Most participants closed their eyes during the optical scan due to: *

1 point

a. Claustrophobia

b. Improvement in concentration

c. Brightness of light

d. Instruction from operator

3. Which of the following statements regarding the scanner software is FALSE? *

1 point

a. The software provided renders of skin markings

b. The software could handle large whole-body scans

c. The software corrected for the presence of minor participant motion

d. The software produced detailed reconstructions of participant hair

4. Why did the scanner sometimes needed to be rotated during a scan? *

1 point

a. Because the weight of the device made it uncomfortable

b. Due to the cable connecting it to the PC workstation

c. In response to the participant changing position during the scan

d. For line-of-sight between anatomy, camera, and projector

5. What is the major limitation of this synthetic CT data production method? *

1 point

a. It is not compatible with any treatment planning system

b. Lack of internal density heterogeneities

c. The coordinate system dimensions are not correct

d. It is not accurate enough to reproduce the external patient contour for a surface treatment plan

Recommended further reading:

1. Sasaki DK, McGeachy P, Alpuche Aviles JE, McCurdy B, Koul R, Dubey A. A modern mold room: Meshing 3D surface scanning, digital design, and 3D printing with bolus fabrication. J Appl Clin Med Phys. 2019 Sep; 20(9): 78-85.

2. Sharma A, Sasaki D, Rickey DW, Leylek A, Harris C, Johnson K, et al. Low-cost optical scanner and 3-dimensional printing technology to create lead shielding for radiation therapy of facial skin cancer: First clinical case series. Adv Radiat Oncol. 2018 Feb; 3(3): 288-296.

3. Dipasquale G, Poirier A, Sprunger Y, Uiterwijk JW, Miralbell R. Improving 3D-printing of megavoltage X-rays radiotherapy bolus with surface-scanner. Radiat Oncol. 2018 Oct; 13(1): 203.

This content was created in conjunction with the Australian Society of Medical Imaging and Radiation Therapy (ASMIRT) CPD Program.

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