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TEST: Image Fusion

1.  Which one of the following is an important benefit from implementing image fusion for PET?

        Increases cost by reducing equivocal studies

        Decreases diagnostic accuracy

        Correlates with multiple modalities to improve diagnostic accuracy

        Eliminates the need for biopsy

2.  The purpose of Image Fusion is...:

        To combine functional and anatomical imaging

        Provide functional information from CT scan

        Provide anatomical data from PET scan

        To eliminate the need for a biopsy of suspicious lesion

3.  The requirements to transfer image data utilizing DICOM include all but:

        Properly configured network connections

        Compatibility of systems

        Internet explorer

        Coordination with CT, MRI sections

4.    Three types of image fusion include...:

        Virtual, digitized, analog

        Visual, software, hardware

        Transmission, emission, attenuation corrected

        None of the above

5.     Attenuation Correction is used to ...:

        Improve visualization of deep structures

        Correct for patient motion during emission scan

        Correct for decay of positrons

        Calculate standardized uptake value of tumors

6.   Accuracy in image fusion depends on all of the following except...:

        Patient positioning

        Isotope injected

        Internal organ movement

        Attenuation correction artifacts

        Errors in fusion procedure

7.   Based on an increase in F-18 FDG uptake...:

        Most malignant lesions can be distinguished clearly from background activity

        Uptake time is decreased to 10 minutes

        Benign lesions will have increased uptake that is more pronounced than muscle activity

        Anatomic activity is increased 10 times greater than molecular

8.    Patient Preparation for PET imaging with F-18 FDG includes:

        Instructing patient to eat a meal high in sugar to aid in the F-18 FDG uptake

        Patient orally ingesting the F-18 FDG one hour before test

        Have the patient NPO for a minimum of 4-6 hours before injection of F-18 FDG

        Asking the patient to exercise for 30 minutes the morning of the PET scan

        None of the Above

9.    Positioning a patient for a whole body PET scan with F-18 FDG requires?: 

        The patient to void between the transmission and emission scan

          The patient to be repositioned between the PET and CT or transmission scan

          Perfect centering of the target organ for counting efficiency

        All pillows and positioning devices to be removed before the scan begins to avoid artifacts

        The patient to be scanned with arms up for the emission and down at the side for the transmission or attenuation correction portion of the scan

10. Accurate standardized uptake values (SUV) measurements depend upon...:

        The patient’s diagnosis

        The amount the patient voids before scan

        The amount of hydration given to the patient before the scan

        Accurate record of activity injected, patient demographics and injection to scan time  

        The time of day the patient is scheduled to be injected

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