Multidetector CT for the Technologist DVD Series 2008
QUESTIONS
Answer the following questions and complete the answer sheet provided. 80018011
Volume 1
Cardiac CT: Basic Principles & Techniques
Elliot K. Fishman, MD, FACR
1. Requirements for cardiac CT include all of the following except
a. High spatial resolution
b. high temporal resolution
c. true volume datasets
d. 16 slice MDCT scanners
2. Typical slice thickness for cardiac CT is
a. less than 1mm
b. 1-5mm
c. 5-8mm
d. 10mm
3. The ideal CT scanner today for cardiac CT is
a. 4 detector MDCT
b. 16 detector MDCT
c. 32 detector MDCT
d. 64 detector MDCT
4. What is the negative predictive value of coronary CTA today?
a. 80%
b. 90%
c. approaches 99%
d. 100%
5. The injection rate for coronary CTA is
a. 2 cc/sec
b. 3 cc/sec
c. 4 cc/sec
d. over 5 cc/sec
6. Calcium scoring for coronary calcification has a score measured in what units?
a. coronary units
b. Agatston score
c. Hounsfeld score
d. none of the above
7. Classic risk factors for heart disease include all of the following except
a. high blood pressure
b. diabetes
c. smoking
d. female
8. Which statement is not correct?
a. calcium scoring is a marker of coronary artery disease
b. calcium scoring can define sites of vessel stenosis
c. calcium scoring has an optimal score of 0
d. a negative calcium score suggests a low likelihood of significant coronary artery disease
MDCT 2008 Question Packet 1 of 24
Multidetector CT for the Technologist DVD Series 2008
QUESTIONS
Answer the following questions and complete the answer sheet provided. 80018011
9. An ideal heart rate for coronary CTA is
a. under 50 beats per minute
b. 60-65 beats per minute
c. 70 beats per minute
d. 75-80 beats per minute
10. Which of the following medications can be used to lower the heart rate for cardiac CT?
a. nitroglycerine
b. metoprolol
c. visipaque-320
d. iodixinol
11. The main disadvantage of CT coronary angiography in clinical practice is
a. visualization of the vessel wall
b. a stent cannot be placed at the time of the study
c. is non-invasive
d. can visualize the cardiac chambers
12. Timing of delivery of IV contrast for a coronary CTA is done with all of the following except
a. bolus timing technique
b. bolus tracking technique
c. pre-set timing
d. a & b
13. Classic radiation dose for cardiac CT is quoted in the range of
a. 15 mSv
b. >20 mSv
c. 5mm
c. Local mediastinal invasion
d. Distant metastasis.
5. CT findings of esophagitis include all of the following except
a. Wall thickening
b. Ulceration
c. Wall calcification
d. Stricture
6. What is a normal gastric wall thickness, when the stomach is well distended?
a. 10mm
7. Which of the following studies is usually the most accurate for determining the depth of gastric
tumor invasion through the gastric wall?
a. CT
b. MR
c. Upper GI series
d. Endoscopic Ultrasound (EUS)
8. Which of the following agents is needed for gastric distension when performing virtual gastroscopy?
a. Water
b. High density contrast
c. Air
d. Fat density oral contrast
MDCT 2008 Question Packet 17 of 24
Multidetector CT for the Technologist DVD Series 2008
QUESTIONS
Answer the following questions and complete the answer sheet provided. 80018011
9. Which of the following is a common site of hematogenous metastases in patients with
adenocarcinoma of the stomach?
a. Liver
b. Prostate
c. Skin
d. Pancreas
MDCT 2008 Question Packet 18 of 24
Multidetector CT for the Technologist DVD Series 2008
QUESTIONS
Answer the following questions and complete the answer sheet provided. 80018011
Volume 4
MDCT of the Colon
Karen M. Horton, MD
1. The appendix arises from which segment of the colon?
a. Cecum
b. Transverse Colon
c. Descending Colon
d. Sigmoid Colon
2. What if the normal diameter of the Transverse colon on CT?
a. > 10 cm
b. 8-10 cm
c. 6-8 cm
d. < 6cm
3. Approximately how many new cases of colon cancer are diagnosed in the US each year?
a. 15,000
b. 25,000
c. 60,000
d. 150,000
4. Which of the following describes a Dukes A tumor?
a. Tumor involving lymph nodes
b. Distant metastases
c. Tumor extend into the serosa
d. Tumor is limited to the bowel wall
5. Diverticulosis is present in what percentage of the population by age 85?
a. 80%
b. 60%
c. 40%
d. 20%
6. A colovesical fistula is a fistula between the colon and what other organ?
a. Skin
b. Small bowel
c. Bladder
d. Prostate
7. Which of the following are the most common segments of the GI tract to be involved with Crohn’s
Disease?
a. Rectum and sigmoid colon
b. Stomach and jejunum
c. Terminal ileum and right colon
d. Transverse colon and descending colon
8. Pseudomembranous colitis is caused by toxins produced by which of the following organisisms?
a. E.coli
b. Clostridium Difficile
c. Stah Aureus
d. Salmonella
MDCT 2008 Question Packet 19 of 24
Multidetector CT for the Technologist DVD Series 2008
QUESTIONS
Answer the following questions and complete the answer sheet provided. 80018011
9. What are the overall mortality rates for pseudomembranous colitis?
a. 10-30%
b. 5.5-7.5%
c. 30-50%
d. 1.1 – 3.5%
10. Which of the following are typically used as treatment for pseudomembranous colitis?
a. Penicillin
b. Metronidazole or vancomycin
c. Bactrim
d. Erythromycon
MDCT 2008 Question Packet 20 of 24
Multidetector CT for the Technologist DVD Series 2008
QUESTIONS
Answer the following questions and complete the answer sheet provided. 80018011
Volume 4
Virtual Colonoscopy: Why and How We Do It
Karen M. Horton, MD
1. Colon cancer results in approximately how many deaths per year in the US?
a. 20,000
b. 56,000
c. 150,0000
d. 250,0000
2. Which of the following facts about colon cancer is not true?
a. Lifetime risk to develop colon cancer is 6%
b. Lifetime risk of dying from colon cancer is 2.5%
c. Males and female are affected equally
d. 75% of cases of colon cancer occur in high risk patients
3. Most colon cancers arise from which of the following
a. Adenomatous polyps
b. Ulcers
c. Lipomas
d. Hyperplastic polyps
4. What is the chance that a polyp 5-9mm will be cancerous?
a. 0%
b. 1%
c. 10%
d. 40%
5. Average risk people should begin colon cancer screening at what age?
a. 30
b. 40
c. 50
d. 60
6. High risk people should begin colon cancer screening at what age?
a. 30
b. 40
c. 50
d. 60
7. Which of the following statement about virtual colonoscopy is true?
a. Virtual colonoscopy does not require a bowel prep.
b. To perform virtual colonoscopy, the colon is distended with water
c. There is no risk of perforation with Virtual colonoscopy
d. Virtual colonoscopy does not require the patient to be sedated
8. Which of the following statement about stool tagging is true?
a. Both solid and liquid stool tagging is helpful
b. Stool tagging agents are given to the patients while they are on the CT scanner
c. Stool tagging agents consist of radioactive material
d. Stool tagging agents appear black on a CT scan
MDCT 2008 Question Packet 21 of 24
Multidetector CT for the Technologist DVD Series 2008
QUESTIONS
Answer the following questions and complete the answer sheet provided. 80018011
9. Which of the following is most useful to distend the colon for virtual colonoscopy?
a. Hypaque
b. Water
c. Carbon dioxide
d. Barium
10. To perform a virtual colonsocopy the patient is usually scanned in which of the following positions?
a. RAO and LPO
b. LPO and right lateral
c. Prone and supine
d. RPO and left lateral
MDCT 2008 Question Packet 22 of 24
Multidetector CT for the Technologist DVD Series 2008
QUESTIONS
Answer the following questions and complete the answer sheet provided. 80018011
Volume 4
Extra Cardiac Findings on Heartscans and Guidelines for CT Scanning
Karen M. Horton, MD
1. How much of the thorax is visible when a cardiac CT is performed using a small field of view (i.e. 26
cm2)?
a. 10%
b. 35.5%
c. 70.3%
d. 95%
2. How much of the thorax is visible when a cardiac CT is performed using a maximum field of view?
a. 10%
b. 35.5%
c. 70.3%
d. 95%
3. In the study by Haller et al, what percentage of patients had incidental pulmonary emboli detected
on their cardiac CTA exams?
a. 0%
b. 0.6%
c. 1.5%
d. 3.2%
4. In the study by Onuma of non cardiac findings in cardiac imaging, what percentage of patients and
an incidental neoplasm detectd on their cardiac CT?
a. 0%
b. 0.2%
c. 0.8%
d. 2.1%
5. Which of the following statements about cardiac CT scans in true?
a. Cardiac CT scans only image the heart and not adjacent structures.
b. The reviewing physician is only responsible to review the heart and coronary arteries
c. Cardiac CT scans almost never detect important pathology in the extracardiac structures
d. In order to detect important pathology, cardiac CT scans should be reconstructed at both a small and large
field of view
6. What percentage of smokers over the age of 50 have pulmonary nodules?
a. 23%
b. 44%
c. 51%
d. 73%
7. The Fleischner society published a management approach for which of the following?
a. Coronary artery calcium scores
b. Atherosclerotic disease in patients under 40
c. Coronary artery aneurysms
d. Incidentally detected pulmonary nodules on CT
MDCT 2008 Question Packet 23 of 24
Multidetector CT for the Technologist DVD Series 2008
QUESTIONS
Answer the following questions and complete the answer sheet provided. 80018011
8. Most CT screening centers which accepts self referred patients are located in which part of the USA?
a. West
b. South
c. Midwest
d. Northeast
9. Which of the following statement about lung nodules is true?
a. Lung nodules are rare, even in smokers
b. The ability to detect lung nodules improves with each new generation scanner
c. All lung nodules regardless of size need to be followed every 3 months for 2 years
d. Lung nodule follow-up is identical for both high risk and low risk patients
MDCT 2008 Question Packet 24 of 24