2026 UPDATED QUESTIONS DOWNLOAD
EACVI Cardiac Computed Tomography (CCT) Actual Exam Prep 2026/2027 | 350+ Q&A
with Rationales | Level 1, 2, & 3 Certification Review
Master the 2026/2027 EACVI Cardiac CT Certification Exam with this comprehensive bank of 350+
high-yield practice questions designed to mirror the official European syllabus. Each question features
a detailed, italicized rationale covering essential domains such as Agatston calcium scoring,
prospective vs. retrospective gating, coronary anatomy, and TAVI/TAVR planning. This
professional study guide provides the technical and clinical expertise needed to manage radiation
safety (ALARA), contrast-induced nephropathy (CIN), and complex imaging artifacts for a
guaranteed first-time pass.
1. Which of the following best defines "Temporal Resolution" in Cardiac CT?
A. The smallest distance between two objects that can be distinguished.
B. The time required to acquire the data needed to reconstruct a single image.
C. The ability to distinguish between two different tissue densities.
D. The total time taken for a full chest scan.
Answer: B. Rationale: Temporal resolution is the time needed to "freeze" cardiac motion. In
CT, it is typically half the gantry rotation time (single-segment reconstruction).
2. To achieve a heart rate of <60 bpm for a Coronary CTA, which medication is first-line,
assuming no contraindications?
A. Sublingual Nitroglycerin
B. Oral or IV Beta-blockers (e.g., Metoprolol)
C. IV Atropine
D. Calcium Channel Blockers (e.g., Verapamil)
Answer: B. Rationale: Beta-blockers are the gold standard for heart rate control to minimize
motion artifacts and allow for prospective triggering.
3. What is the primary purpose of administering sublingual Nitroglycerin before a
Coronary CTA?
A. To lower the patient's blood pressure.
B. To reduce the heart rate.
C. To achieve maximal coronary vasodilation and improve stenosis assessment.
D. To prevent contrast-induced nephropathy.
Answer: C. Rationale: Nitrates dilate the coronary arteries, making the lumen easier to
visualize and preventing "pseudo-stenosis" caused by vessel spasm.
4. A "Step-and-Shoot" acquisition protocol is also known as:
A. Retrospective ECG Gating
, 2026 UPDATED QUESTIONS DOWNLOAD
B. Prospective ECG Triggering
C. High-pitch Helical Scanning
D. Dual-source Scanning
Answer: B. Rationale: Prospective triggering (Step-and-Shoot) only triggers X-rays during a
specific phase of the cardiac cycle (usually diastole), significantly reducing radiation dose
compared to retrospective gating.
5. Which Hounsfield Unit (HU) threshold is typically used to define "Calcium" in a
Calcium Scoring (Agatston) scan?
A. >50 HU
B. >100 HU
C. >130 HU
D. >200 HU
Answer: C. Rationale: By convention, the Agatston score identifies calcified plaque as an area
of at least 1 mm² with a density of 130 HU or greater.
6. In a patient with an irregular heart rate (e.g., Atrial Fibrillation), which acquisition
mode is most appropriate?
A. Prospective ECG Triggering
B. Retrospective ECG Gating
C. High-pitch Spiral
D. Flash Mode
Answer: B. Rationale: Retrospective gating acquires data throughout the entire cardiac cycle,
allowing for "ECG editing" or selection of the best diastolic frame despite irregular rhythms.
7. Which artifact is caused by the presence of high-density objects like metal clips or
dense calcification?
A. Motion artifact
B. Beam hardening (Streak) artifact
C. Partial volume averaging
D. Step artifact
Answer: B. Rationale: High-density objects absorb lower-energy photons, causing "streaks" or
dark bands in the image, known as beam hardening.
8. The "ALARA" principle in Cardiac CT stands for:
A. As Low As Reasonably Achievable
B. Always Lower All Radiation Amounts
C. As Little As Reasonably Allowed
D. Accurate Levels And Radiation Assessment
Answer: A. Rationale: This is the fundamental safety principle to minimize radiation exposure
to patients while maintaining diagnostic image quality.
9. What is the most common site for a "Coronary Anomaly" where the RCA arises from
the Left Sinus of Valsalva?
, 2026 UPDATED QUESTIONS DOWNLOAD
A. Retroaortic course
B. Interarterial course (between Aorta and Pulmonary Artery)
C. Prepulmonary course
D. Transeptal course
Answer: B. Rationale: The interarterial course (malignant course) is the most clinically
significant because it can lead to sudden cardiac death during exercise.
10. Which contrast-related factor most significantly increases the risk of Contrast-
Induced Nephropathy (CIN)?
A. Use of non-ionic contrast
B. Pre-existing renal insufficiency (Low GFR)
C. High heart rate
D. Small catheter size
Answer: B. Rationale: A baseline low Glomerular Filtration Rate (GFR) is the strongest
predictor of CIN.
11. Spatial Resolution in CT is primarily determined by:
A. Gantry rotation speed
B. Detector element size and focal spot size
C. Tube voltage (kVp)
D. Contrast injection rate
Answer: B. Rationale: Spatial resolution is the ability to see small objects; it is limited by the
physical hardware of the scanner (detectors).
12. When evaluating a "Bicuspid Aortic Valve," which CT phase is best for
visualization?
A. Mid-Diastole
B. Early Systole (Opening of the valve)
C. Late Diastole
D. Early Diastole
Answer: B. Rationale: Visualization of the valve leaflets in full systole is necessary to
determine the morphology (e.g., Sievers type) and confirm the "fish-mouth" opening.
13. A "Prospective" scan typically results in a radiation dose in the range of:
A. 1–3 mSv
B. 10–15 mSv
C. 20–25 mSv
D. 30+ mSv
Answer: A. Rationale: Modern prospective protocols (Step-and-Shoot) are low-dose, often well
below 3 mSv, whereas retrospective scans are significantly higher.
14. Which anatomical landmark is used to identify the "Left Main Coronary Artery"
origin?
A. Right Sinus of Valsalva
, 2026 UPDATED QUESTIONS DOWNLOAD
B. Non-coronary Sinus
C. Left Sinus of Valsalva
D. Posterior Sinus
Answer: C. Rationale: The LMCA originates from the Left Sinus of Valsalva.
15. "Partial Volume Averaging" occurs when:
A. The patient moves during the scan.
B. Tissues of different densities occupy the same voxel.
C. The contrast bolus is too thin.
D. The tube current (mA) is too low.
Answer: B. Rationale: If a voxel contains both calcium (high density) and blood (lower density),
the CT number is an average, often making small structures appear larger or blurred.
16. Which of the following is a contraindication to the use of IV Beta-blockers?
A. Hypertension
B. Second-degree Heart Block (Mobitz II)
C. Anxiety
D. High Coronary Calcium Score
Answer: B. Rationale: Beta-blockers are contraindicated in advanced heart blocks, severe
asthma, and acute heart failure.
17. The "Pitch" in a helical CT scan is defined as:
A. Rotation speed divided by tube voltage.
B. Table feed per rotation divided by total beam collimation.
C. Contrast rate divided by heart rate.
D. Total scan time.
Answer: B. Rationale: Pitch > 1 means there are gaps in the data; Pitch < 1 means there is
overlap (necessary for cardiac reconstruction).
18. What is the standard concentration of Iodinated Contrast used for CCTA?
A. 100-200 mgI/mL
B. 300-400 mgI/mL
C. 500-600 mgI/mL
D. 1000 mgI/mL
Answer: B. Rationale: High-concentration contrast (350-400 mgI/mL) is required to achieve
sufficient opacification of the coronary arteries.
19. A "Calcium Score" of 400 or greater is associated with:
A. Very low risk of CAD.
B. Moderate risk of CAD.
C. High risk of significant CAD and future cardiovascular events.
D. No risk of CAD.
Answer: C. Rationale: An Agatston score >400 is considered high risk and often warrants
further functional or anatomical testing.
EACVI Cardiac Computed Tomography (CCT) Actual Exam Prep 2026/2027 | 350+ Q&A
with Rationales | Level 1, 2, & 3 Certification Review
Master the 2026/2027 EACVI Cardiac CT Certification Exam with this comprehensive bank of 350+
high-yield practice questions designed to mirror the official European syllabus. Each question features
a detailed, italicized rationale covering essential domains such as Agatston calcium scoring,
prospective vs. retrospective gating, coronary anatomy, and TAVI/TAVR planning. This
professional study guide provides the technical and clinical expertise needed to manage radiation
safety (ALARA), contrast-induced nephropathy (CIN), and complex imaging artifacts for a
guaranteed first-time pass.
1. Which of the following best defines "Temporal Resolution" in Cardiac CT?
A. The smallest distance between two objects that can be distinguished.
B. The time required to acquire the data needed to reconstruct a single image.
C. The ability to distinguish between two different tissue densities.
D. The total time taken for a full chest scan.
Answer: B. Rationale: Temporal resolution is the time needed to "freeze" cardiac motion. In
CT, it is typically half the gantry rotation time (single-segment reconstruction).
2. To achieve a heart rate of <60 bpm for a Coronary CTA, which medication is first-line,
assuming no contraindications?
A. Sublingual Nitroglycerin
B. Oral or IV Beta-blockers (e.g., Metoprolol)
C. IV Atropine
D. Calcium Channel Blockers (e.g., Verapamil)
Answer: B. Rationale: Beta-blockers are the gold standard for heart rate control to minimize
motion artifacts and allow for prospective triggering.
3. What is the primary purpose of administering sublingual Nitroglycerin before a
Coronary CTA?
A. To lower the patient's blood pressure.
B. To reduce the heart rate.
C. To achieve maximal coronary vasodilation and improve stenosis assessment.
D. To prevent contrast-induced nephropathy.
Answer: C. Rationale: Nitrates dilate the coronary arteries, making the lumen easier to
visualize and preventing "pseudo-stenosis" caused by vessel spasm.
4. A "Step-and-Shoot" acquisition protocol is also known as:
A. Retrospective ECG Gating
, 2026 UPDATED QUESTIONS DOWNLOAD
B. Prospective ECG Triggering
C. High-pitch Helical Scanning
D. Dual-source Scanning
Answer: B. Rationale: Prospective triggering (Step-and-Shoot) only triggers X-rays during a
specific phase of the cardiac cycle (usually diastole), significantly reducing radiation dose
compared to retrospective gating.
5. Which Hounsfield Unit (HU) threshold is typically used to define "Calcium" in a
Calcium Scoring (Agatston) scan?
A. >50 HU
B. >100 HU
C. >130 HU
D. >200 HU
Answer: C. Rationale: By convention, the Agatston score identifies calcified plaque as an area
of at least 1 mm² with a density of 130 HU or greater.
6. In a patient with an irregular heart rate (e.g., Atrial Fibrillation), which acquisition
mode is most appropriate?
A. Prospective ECG Triggering
B. Retrospective ECG Gating
C. High-pitch Spiral
D. Flash Mode
Answer: B. Rationale: Retrospective gating acquires data throughout the entire cardiac cycle,
allowing for "ECG editing" or selection of the best diastolic frame despite irregular rhythms.
7. Which artifact is caused by the presence of high-density objects like metal clips or
dense calcification?
A. Motion artifact
B. Beam hardening (Streak) artifact
C. Partial volume averaging
D. Step artifact
Answer: B. Rationale: High-density objects absorb lower-energy photons, causing "streaks" or
dark bands in the image, known as beam hardening.
8. The "ALARA" principle in Cardiac CT stands for:
A. As Low As Reasonably Achievable
B. Always Lower All Radiation Amounts
C. As Little As Reasonably Allowed
D. Accurate Levels And Radiation Assessment
Answer: A. Rationale: This is the fundamental safety principle to minimize radiation exposure
to patients while maintaining diagnostic image quality.
9. What is the most common site for a "Coronary Anomaly" where the RCA arises from
the Left Sinus of Valsalva?
, 2026 UPDATED QUESTIONS DOWNLOAD
A. Retroaortic course
B. Interarterial course (between Aorta and Pulmonary Artery)
C. Prepulmonary course
D. Transeptal course
Answer: B. Rationale: The interarterial course (malignant course) is the most clinically
significant because it can lead to sudden cardiac death during exercise.
10. Which contrast-related factor most significantly increases the risk of Contrast-
Induced Nephropathy (CIN)?
A. Use of non-ionic contrast
B. Pre-existing renal insufficiency (Low GFR)
C. High heart rate
D. Small catheter size
Answer: B. Rationale: A baseline low Glomerular Filtration Rate (GFR) is the strongest
predictor of CIN.
11. Spatial Resolution in CT is primarily determined by:
A. Gantry rotation speed
B. Detector element size and focal spot size
C. Tube voltage (kVp)
D. Contrast injection rate
Answer: B. Rationale: Spatial resolution is the ability to see small objects; it is limited by the
physical hardware of the scanner (detectors).
12. When evaluating a "Bicuspid Aortic Valve," which CT phase is best for
visualization?
A. Mid-Diastole
B. Early Systole (Opening of the valve)
C. Late Diastole
D. Early Diastole
Answer: B. Rationale: Visualization of the valve leaflets in full systole is necessary to
determine the morphology (e.g., Sievers type) and confirm the "fish-mouth" opening.
13. A "Prospective" scan typically results in a radiation dose in the range of:
A. 1–3 mSv
B. 10–15 mSv
C. 20–25 mSv
D. 30+ mSv
Answer: A. Rationale: Modern prospective protocols (Step-and-Shoot) are low-dose, often well
below 3 mSv, whereas retrospective scans are significantly higher.
14. Which anatomical landmark is used to identify the "Left Main Coronary Artery"
origin?
A. Right Sinus of Valsalva
, 2026 UPDATED QUESTIONS DOWNLOAD
B. Non-coronary Sinus
C. Left Sinus of Valsalva
D. Posterior Sinus
Answer: C. Rationale: The LMCA originates from the Left Sinus of Valsalva.
15. "Partial Volume Averaging" occurs when:
A. The patient moves during the scan.
B. Tissues of different densities occupy the same voxel.
C. The contrast bolus is too thin.
D. The tube current (mA) is too low.
Answer: B. Rationale: If a voxel contains both calcium (high density) and blood (lower density),
the CT number is an average, often making small structures appear larger or blurred.
16. Which of the following is a contraindication to the use of IV Beta-blockers?
A. Hypertension
B. Second-degree Heart Block (Mobitz II)
C. Anxiety
D. High Coronary Calcium Score
Answer: B. Rationale: Beta-blockers are contraindicated in advanced heart blocks, severe
asthma, and acute heart failure.
17. The "Pitch" in a helical CT scan is defined as:
A. Rotation speed divided by tube voltage.
B. Table feed per rotation divided by total beam collimation.
C. Contrast rate divided by heart rate.
D. Total scan time.
Answer: B. Rationale: Pitch > 1 means there are gaps in the data; Pitch < 1 means there is
overlap (necessary for cardiac reconstruction).
18. What is the standard concentration of Iodinated Contrast used for CCTA?
A. 100-200 mgI/mL
B. 300-400 mgI/mL
C. 500-600 mgI/mL
D. 1000 mgI/mL
Answer: B. Rationale: High-concentration contrast (350-400 mgI/mL) is required to achieve
sufficient opacification of the coronary arteries.
19. A "Calcium Score" of 400 or greater is associated with:
A. Very low risk of CAD.
B. Moderate risk of CAD.
C. High risk of significant CAD and future cardiovascular events.
D. No risk of CAD.
Answer: C. Rationale: An Agatston score >400 is considered high risk and often warrants
further functional or anatomical testing.
