JMRS ASMIRT CPD Q&A - Medical Imaging

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JMRS ASMIRT CPD Q&A - Medical Imaging - June 2021

Maximise your CPD by reading the following selected Medical Imaging article and answer the five questions. Please remember to self-claim your CPD and retain your supporting evidence.

Continuing Professional Development Q&A - Medical Imaging

Identifying predictors of patient radiation dose during uterine artery embolisation

Nocum DJ, Robinson J, Halaki M, Liang E, Thompson N, Moscova M, Reed W. (2021)
J Med Radiat Sci.

https://doi.org/10.1002/jmrs.450

1. Which factors contributed more to the outcome Dose Area Product (DAP) during Uterine Artery Embolization (UAE)? *

1 point

a. Radiation dose factors

b. Demographic and clinical parameters

c. Patient fibroid presentation

d. All of the above

2. The regression equation demonstrated that the following imaging modes were considered predictors of patient radiation dose: *

1 point

a. Digital subtraction angiography (DSA) and conventional roadmap (CRM)

b. CRM and last-image hold (LIH)

c. Fluoroscopy, DSA, CRM and LIH

d. DSA, CRM and LIH

3. Which combination of angiographic techniques would further optimise the radiation dose the most for UAE patients? *

1 point

a. Increased magnification, less oblique projections and less DSA

b. More oblique projections, more DSA, and less LIH

c. Reduced magnification, more LIH and active collimation

d. Active collimation, more oblique projections, and increased object-to-image receptor distance

4. Which of the following are not considered radiation dose parameters? *

1 point

a. Fluoroscopy time

b. Dose area product

c. Total fibroid volume

d. Air Kerma

5. The regression model that entered the identified dose predictors for UAE patients was found to be: *

1 point

a. DAP = 1.226(total DSA) +10.551(total LIH) + 0.985(total CRM)

b. DAP = 1.226(total DSA) +10.551(total CRM) + 0.985(total LIH)

c. DAP = 1.226(total DSA) +10.551(total fibroid volume) + 0.985(body mass index BMI)

d. DAP = 1.226(total DSA) +10.551(total uterus volume) + 0.985(total CRM)

Recommended further reading:

1. Nocum DJ, Robinson J, Liang E, Thompson N, Reed W. The factors contributing to the total radiation exposure of patient during uterine artery embolisation. J Med Rad Sci. 2019 Sep; 66(3): 200-211. doi: 10.1002/jmrs.347

2. Crowhurst JA, Whitby M, Savage M, Murdoch D, Robinson B, Shaw E, et al. Factors contributing to radiation dose for patients and operators during cardiac angiography. J Med Rad Sci. 2019 Mar; 66(1): 20-29. doi:10.1002/jmrs.315

3. Badawy MK, Scott M, Farouque O, Horrigan M, Clark DJ, Chan RK. Feasibility of using ultra‐low pulse rate fluoroscopy during routine diagnostic coronary angiography. J Med Rad Sci. 2018 Dec; 65(4): 252-258. doi:10.1002/jmrs.293

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

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