Gtv - Study guides, Class notes & Summaries

Goal of radiation - Answer - to irradiate a predefined target volume while minimizing exposure to adjacent normal tissues. - Radiation oncologists and medical oncologists collaborate to determine overall goals and treatment approaches. - Multiple diagnostic procedures are employed to define the tumor volume and prescribe the correct dose of radiation. - Radiation physicists, dosimetrists, oncologists, and therapists use sophisticated hardware and software to model geometric and dosime...

Mark all concerning wedges: - reduce hot spots - can be hard or dynamic - used for tissue compensating of sloping surfaces - known as superflab - Answer-- reduce hot spots - can be hard or dynamic - used for tissue compensating of sloping surfaces Irradiated volume - Answer-Volume of tissue receiving a significant dose (50% or more of the prescribed dose) GTV - Answer-The gross, palpable, visible, or clinically demonstratable location of the cancerous growth CTV - Answer-Tiss...

Radiation Therapy - CAMRT Glossary Questions and Answers 100% Verified ALARA As Low As Reasonably Achievable AP/PA anteroposterior/posteroanterior Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:08 / 0:15 Full screen BEV Beam's Eye View BID twice daily CBC complete blood count CBCT Cone Beam Computed Tomography, growth progress cross sectional image from CT scan shows different planes C. ...

SBRT lung fractionation - ANS 6-30 Gy in 1-5fx 5 Fx x 10 Gy 4 Fx x 12 Gy 3 Fx x 20 Gy Dose heterogeneity - ANS 1. Overlapping beams with tight margin will put high doses in the center of the target. 2. High Doses in Center may not help radiobiologically but there is no particular disadvantage. 3. Higher dose of radiation administered anywhere within the tumor will enhance the composite cytotoxic effect of and increase the TCP. 4. EUD (Equivalent Uniform Dose) is more rob...

What is the TD 5/5 for the kidney? - Answer-23 Gy What would a QA level 1 action item require? - Answer-Inspection, but treatment can continue What is the backscatter factor at the level of Dmax? - Answer-Tissue Air Ratio (TAR) What technique can be used to accomplish forced shallow breathing? - Answer-Gating What are the parts of the oral cavity? - Answer-Floor of the mouth, retromolar trigone, gingiva, anterior 2/3 of tongue, hard palate What is the tolerance for gantry & collimator angl...

ARRT BOARD EXAM |100% Correct Answer| 2024/2025 Study year What is the TD 5/5 for the kidney? *Ans* 23 Gy What would a QA level 1 action item require? *Ans* Inspection, but treatment can continue What is the backscatter factor at the level of Dmax? *Ans* Tissue Air Ratio (TAR) What technique can be used to accomplish forced shallow breathing? *Ans* Gating What are the parts of the oral cavity? *Ans* Floor of the mouth, retromolar trigone, gingiva, anterior 2/3 of tongue, hard palate ...

What is the TD 5/5 for the kidney? - Answer-23 Gy What would a QA level 1 action item require? - Answer-Inspection, but treatment can continue What is the backscatter factor at the level of Dmax? - Answer-Tissue Air Ratio (TAR) What technique can be used to accomplish forced shallow breathing? - Answer-Gating What are the parts of the oral cavity? - Answer-Floor of the mouth, retromolar trigone, gingiva, anterior 2/3 of tongue, hard palate What is the tolerance for gantry & collimator angl...

Dosimetry Exam II Question and answers already passed 2023Gross, palpable, visible, demonstrable extent and location of the tumor disease = _____ - correct answer GTV GTV stands for - correct answer Gross Tumor Volume The volume of disease that is visible on diagnostic imaging = _____ - correct answer GTV ______ may consist of primary tumor, lymphadenopathy, or other metastases - correct answer GTV ______ technically cannot be defined if the tumor has been removed, howeve...

c. GBM d. metastatic tumor - answer-metastatic tumor machines with energy ranges from 50-150 kV are known as: a. linear accelerators b. orthovoltage c. superficial d. cyclotron - answer-superficial parallel opposed fields have a hinge angle of: a. 45 degrees b. 90 degrees c. 180 degrees d. 360 degrees - answer-180 degrees terrestrial radiation is an example of: a. gamma rays b. natural background radiation c. alpha particles d. beta particles - answer-natural background ra...

ARRT BOARD EXAM (2022/2023) ALREADY PASSED What is the TD 5/5 for the kidney? 23 Gy What would a QA level 1 action item require? Inspection, but treatment can continue What is the backscatter factor at the level of Dmax? Tissue Air Ratio (TAR) What technique can be used to accomplish forced shallow breathing? Gating What are the parts of the oral cavity? Floor of the mouth, retromolar trigone, gingiva, anterior 2/3 of tongue, hard palate What is the tolerance for gantry & collimator angle i...