ABR TMP case studies
ABR TMP · Put your knowledge to work in context.
The ABR Therapeutic Medical Physics (TMP) Part 2 Qualifying Exam is the middle step of the three-part ABR medical physics certification sequence. It is intended for physicists who have already passed both sections of Part 1 and who are completing, or are on track to complete, a CAMPEP-accredited residency or DMP program by August 31 of the exam year. The ABR TMP case studies are 5 cases and about 2,687 words.
1Lung SBRT: Margin, Algorithm, and Chest Wall Risk
A 68-year-old former smoker has a 2.0 cm peripheral NSCLC in the left lower lobe, 1 cm from the lateral chest wall. The tumor is invisible on fluoroscopy.
564 words, about 3 min2Linac Output Drift, MLC Error, and VMAT QA Failure
A 6 MV TrueBeam is calibrated with TG-51 at 1.000 cGy/MU for a 10 x 10 cm field at dmax, 100 cm SSD. Over three consecutive mornings, the daily output check reads 0.985, 0.984, and 0.985.
533 words, about 3 min3Cervical HDR: EQD2 Assessment and Source Decay
A 52-year-old with FIGO IIB cervical cancer receives 45 Gy in 25 fractions to the pelvis with concurrent cisplatin, followed by MRI-guided HDR brachytherapy using a tandem-and-ring applicator. The prescription is 28 Gy in 4 fractions to the HR-CTV, one fraction per week.
570 words, about 3 min4Prostate IGRT: Fiducials, Soft Tissue, and Imaging Dose
A 70-year-old with favorable intermediate-risk prostate cancer is treated with 78 Gy in 39 fractions using VMAT. Three gold fiducials were implanted 2 weeks before planning.
488 words, about 2 min5Vault Shielding for 10 MV and an Interlock Bypass
A hospital plans to add a 10 MV photon beam to a vault originally designed for 6 MV. The weekly workload is 400 Gy at isocenter, the primary barrier is 5 m from the target, the use factor is 0.25, and the occupancy factor is 1.0.
532 words, about 3 min