Imaging Modalities Review Test-2

Fluoroscopy utilizes what to visualize anatomic structures in real-time?

• High-frequency sound waves

• Live x-rays

• Strong magnetic fields

• Radioactive tracers

Answer explanation

Fluoroscopy uses live x-rays to visualize anatomic structures in real-time, allowing for dynamic imaging of the body's internal processes.

Fluoroscopy is best utilized for static images, not for depicting motion or active physical properties.

• True

• False

Answer explanation

The statement is false because fluoroscopy is specifically designed to visualize motion in real-time, making it ideal for dynamic imaging rather than static images.

What is the common name for the mobile fluoroscopy machine, often positioned by an OT, used in orthopedics?

• C-Arm

• X-Ray Table

• MRI Scanner

• Ultrasound Machine

Answer explanation

The C-Arm is a mobile fluoroscopy machine commonly used in orthopedic surgeries. It provides real-time imaging, allowing surgeons to visualize the area of interest during procedures, making it essential in the operating theater.

Which of the following is a primary role of an Orthopaedic Technician (OT) during a fluoroscopy procedure?

• Activating the x-ray beam

• Injecting the contrast dye

• Holding a limb to assist with fracture reduction

• Interpreting the live images

Answer explanation

The primary role of an Orthopaedic Technician during a fluoroscopy procedure is to hold a limb to assist with fracture reduction, ensuring proper positioning for accurate imaging and treatment.

The x-ray beam in fluoroscopy is activated by the radiologist performing the procedure, not the OT.

• True

• False

Answer explanation

The statement is True because in fluoroscopy, the radiologist is responsible for activating the x-ray beam, ensuring proper control and safety during the procedure.

What does "CT" in CT Scan stand for?

• Coronal Tomography

• Contrast Tomography

• Computed Tomography

• Cranial Tomography

Answer explanation

"CT" in CT Scan stands for "Computed Tomography," which is a medical imaging technique that combines multiple X-ray images to create cross-sectional views of the body, providing detailed information about internal structures.

A CT scan uses high-strength magnetic fields and radio waves to create its images.

• True

• False

Answer explanation

A CT scan uses X-rays, not magnetic fields and radio waves, to create images. Therefore, the statement is false.

The cross-sectional images, or "slices," produced by a CT scan are called ______ images.

• tomographic

• radiographic

• sonographic

• photographic

Answer explanation

The correct term for the cross-sectional images produced by a CT scan is 'tomographic' images. This term specifically refers to the technique of imaging slices of the body, distinguishing it from other imaging methods.

A CT scan is particularly useful for imaging which of the following, producing more detail than a conventional x-ray?

• Minor soft tissue strains

• Complex bone fractures

• Fetal development

• Blood flow velocity

Answer explanation

A CT scan provides detailed cross-sectional images, making it particularly effective for complex bone fractures, which require more precision than conventional x-rays can offer.

A CT scan is great for seeing complex, shattered, or hidden fractures that a regular X-ray might miss.

• True

• False

Answer explanation

True. A CT scan provides detailed images of complex fractures that may not be visible on a regular X-ray, making it a valuable tool for diagnosing shattered or hidden fractures.