10+ CT & MRI Technician Interview Questions and Answers

Before performing any procedure with contrast in CT scan and MRI, we first check the patient's medical history and any allergies to contrast agents.

• Check the patient's medical history for any previous reactions to contrast agents

• Ask the patient about any known allergies, especially to iodine or shellfish

• Perform a pre-procedure assessment to ensure the patient is suitable for contrast administration

• Verify renal function to determine if the patient can safely receive contrast

• Co...read more

STIR and FLAIR are pulse sequences used in MRI imaging with different contrast mechanisms.

• STIR (Short Tau Inversion Recovery) is a T1-weighted sequence that suppresses fat signal and enhances pathology.

• FLAIR (Fluid Attenuated Inversion Recovery) is a T2-weighted sequence that suppresses fluid signal and enhances lesions.

• STIR is useful for detecting bone marrow edema, infection, and tumors, while FLAIR is effective in visualizing multiple sclerosis lesions and brain tumors.

• STI...read more

T1w and T2w images are types of magnetic resonance imaging (MRI) scans that provide different information about the body's tissues.

• T1w images show the distribution of fat and water in the body, providing good anatomical detail.

• T2w images highlight fluid-filled structures and soft tissues, making them useful for detecting abnormalities like edema or inflammation.

• T1w images are typically brighter for fat and darker for water, while T2w images are brighter for water and darker f...read more

X-rays use radiation to create images of bones and tissues, while CT scans use a combination of X-rays and computer technology to create detailed cross-sectional images of the body.

• X-rays use a single beam of radiation to create a 2D image, while CT scans use multiple X-ray beams and a rotating scanner to create a 3D image.

• X-rays are commonly used to detect fractures, lung infections, and dental problems, while CT scans are used to diagnose conditions like tumors, blood clots...read more

Contrast is given in T1W images to enhance the visualization of certain structures and abnormalities.

• Contrast agents help differentiate between normal and abnormal tissues.

• They improve the visibility of blood vessels, tumors, and inflammation.

• Contrast agents contain paramagnetic or superparamagnetic substances.

• Gadolinium-based contrast agents are commonly used in T1W imaging.

• Contrast administration can be intravenous, oral, or rectal depending on the area of interest.

There are four generations in CT scan technology.

• The first generation of CT scanners used a single X-ray source and detector.

• The second generation introduced a rotating X-ray tube and multiple detectors.

• The third generation utilized a stationary X-ray tube and a rotating detector array.

• The fourth generation, also known as spiral or helical CT, introduced continuous rotation and a slip-ring technology.

The number of RF coils used in MRI varies depending on the specific imaging technique and body part being scanned.

• RF coils are used to transmit and receive radiofrequency signals during MRI scans.

• Different types of RF coils are designed for specific imaging purposes and body parts.

• Commonly used RF coils include head coils, body coils, surface coils, and specialized coils for extremities or breast imaging.

• The number of RF coils used can range from one to multiple, depending on...read more

Managing patients as a CT & MRI Technician involves ensuring their comfort, explaining procedures, and addressing basic questions.

• Ensure patients are comfortable and at ease during procedures

• Explain the procedure to the patient, addressing any concerns or questions they may have

• Provide clear instructions to patients regarding preparation for the scan, such as fasting or removing metal objects

• Assist patients in positioning themselves correctly for the scan

• Monitor patients thro...read more

Patient management involves effective communication, empathy, and attention to their needs.

• Establish rapport with patients to gain their trust and cooperation

• Provide clear instructions and explanations to alleviate anxiety

• Ensure patient safety and comfort during procedures

• Maintain accurate records and follow protocols for patient care

• Address any concerns or questions the patient may have

• Collaborate with other healthcare professionals to ensure optimal patient outcomes

As a CT & MRI Technician, we will perform various diagnostic imaging procedures daily.

• Performing CT scans and MRI scans on patients

• Preparing patients for imaging procedures

• Administering contrast agents as needed

• Ensuring equipment is properly maintained and calibrated

• Communicating with radiologists and physicians regarding imaging results

Siemens machine technique refers to the specific protocols and settings used on Siemens MRI or CT machines.

• Siemens machines have unique software and hardware features that require specific techniques for optimal imaging results

• Techniques may vary depending on the specific model of Siemens machine being used

• Proper training and experience with Siemens machines is essential for accurate imaging and patient safety

RBC stands for red blood cells, which carry oxygen throughout the body. WBC stands for white blood cells, which help fight infections.

• RBCs are responsible for carrying oxygen from the lungs to the rest of the body.

• WBCs are part of the immune system and help fight off infections and diseases.

• RBCs are produced in the bone marrow, while WBCs are produced in various locations including the bone marrow and lymphoid tissues.

GE machine technique refers to the specific imaging parameters and settings used on a GE MRI or CT machine.

• GE machines have specific protocols for different types of scans, such as brain, spine, or abdomen imaging.

• Technique includes factors like slice thickness, field of view, and contrast administration.

• Proper technique is crucial for obtaining high-quality images and accurate diagnoses.

• Example: For a brain MRI on a GE machine, typical technique may include a 5mm slice thick...read more