Computed Tomography Instrumentation

What are the main components of a CT scanner?

• Laser beam, Ultrasound probe, Stethoscope, Scalpel, Thermometer

• Gantry, X-ray tube, Detector array, Patient table, Computer system

• MRI machine, PET scanner, Mammography unit, Fluoroscopy machine, Bone densitometer

• Pulse oximeter, Blood pressure cuff, ECG machine, Syringe, Sphygmomanometer

Explain the role of the X-ray tube in a CT scanner.

• The X-ray tube generates sound waves in a CT scanner.

• The X-ray tube measures blood pressure in a CT scanner.

• The X-ray tube generates X-rays that pass through the body and are detected by the detectors in a CT scanner.

• The X-ray tube is responsible for printing images in a CT scanner.

How does detector technology work in CT imaging?

• Detectors analyze blood flow in the body

• Detectors measure radiation passing through the body and convert it into electrical signals for image creation.

• Detectors emit radiation to create images

• Detectors measure temperature changes for imaging purposes

Which component of a CT scanner is responsible for generating X-rays?

• Gamma camera

• Ultrasound probe

• MRI machine

• X-ray tube

What is the function of the collimator in a CT scanner?

• Narrows the X-ray beam

• Increases the patient dose

• Expands the X-ray beam

• Reduces the image resolution

Describe the process of data acquisition in CT imaging.

• Data acquisition in CT imaging involves MRI technology.

• The process of data acquisition in CT imaging includes ultrasound scanning.

• CT imaging data acquisition is done through physical measurements only.

• The process of data acquisition in CT imaging involves X-ray emission, radiation detection, and computer processing to generate images.

What is the purpose of the gantry in a CT scanner?

• To provide lighting for the room

• To house the X-ray tube, detectors, and other components, and rotate around the patient to capture images from multiple angles.

• To store patient records

• To play music during the scan

How do modern CT scanners utilize multiple detector rows for imaging?

• Using only one detector row at a time

• Sequential data collection from a single angle

• Capturing images in black and white only

• Simultaneous data collection from multiple angles

What is the significance of the filter in the X-ray tube of a CT scanner?

• It increases patient dose and degrades image quality.

• It is used to adjust the X-ray tube voltage.

• It has no impact on the X-ray beam in a CT scanner.

• It helps to remove low-energy X-ray photons, reducing patient dose and improving image quality.

Explain the difference between single-slice and multi-slice CT scanners.

• Single-slice CT scanners acquire multiple images simultaneously during one rotation.

• Single-slice CT scanners are faster than multi-slice CT scanners.

• Single-slice CT scanners acquire one image per rotation, while multi-slice CT scanners can acquire multiple images simultaneously during one rotation.

• Multi-slice CT scanners acquire one image per rotation.