Image-Guided Medical Imaging Modalities Quiz

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What is the objective of image-guided treatment mentioned in the text?

To perform invasive surgeries

To conduct open surgeries

To benefit patients without increasing medical costs (correct)

To increase medical costs for patients

Which imaging modality uses high electrical potential and electrons from a cathode filament accelerated towards an impact on a rotating anode?

Fluoroscopy

Radiography (X-Ray) (correct)

Computed Tomography

Ultrasound

Which imaging modality involves Gray-Scale and Color Doppler techniques?

Computed Tomography

Magnetic Resonance Imaging (MRI)

Ultrasound (US) (correct)

Nuclear Medicine

What type of imaging modality utilizes Gamma, PET, and SPECT techniques?

Nuclear Medicine Signup and view all the answers

What is the purpose of utilizing image-guided surgery according to the text?

To avoid cutting open patients Signup and view all the answers

What does Computed Tomography (CT) Rotation involve?

Using a thin fan beam of x-rays and an array of detectors Signup and view all the answers

What is the purpose of Nuclear imaging using radioactive substances linked to compounds?

To locate tumors or cancers in the body Signup and view all the answers

How does Single Photon Emission Computed Tomography (SPECT) imaging work?

By using a gamma camera to acquire multiple projections Signup and view all the answers

Which instrument is commonly used for cancer and cardiac imaging in nuclear medicine?

Gamma camera head Signup and view all the answers

What is a key difference between Computed Tomography (CT) and Single Photon Emission Computed Tomography (SPECT)?

CT rotation provides 3D reconstructions, while SPECT involves acquiring multiple projections. Signup and view all the answers

In Radioisotope imaging, what does the formation of images provide information about?

Tumor location Signup and view all the answers

What is the main difference between SPECT and PET?

SPECT uses a tracer that emits gamma radiation directly, while PET involves a chain reaction emitting gamma photons. Signup and view all the answers

Which imaging technology utilizes CT X-ray scans in combination with nuclear imaging for 3D reconstruction?

SPECT Signup and view all the answers

Why are SPECT scans generally less expensive than PET scans?

SPECT uses longer-lived and more easily obtained radioisotopes compared to PET. Signup and view all the answers

How is the spatial resolution of PET compared to SPECT?

PET offers higher spatial resolution than SPECT. Signup and view all the answers

What type of information does PET provide that SPECT does not?

Intrinsic functional information Signup and view all the answers

What is a key advantage of using CT X-ray scans in conjunction with SPECT or PET imaging?

Enhanced 3D reconstruction accuracy Signup and view all the answers

What type of radiation is considered less harmful and better for the fetus?

Non-ionizing radiation Signup and view all the answers

Which level of processing in computer vision systems requires the highest level of intelligence?

High-level processing Signup and view all the answers

Which of the following is NOT a typical preprocessing step in image processing?

Object detection Signup and view all the answers

What is the main objective of image enhancement techniques?

To process the image so that the result is more suitable for a specific application Signup and view all the answers

Which of the following modalities is classified as using non-ionizing radiation?

MRI Signup and view all the answers

What is the first step in intelligent (high-level) image analysis?

Feature extraction Signup and view all the answers

Which of the following is NOT a level of feature extraction mentioned in the text?

Object level Signup and view all the answers

What is the first step in edge-based segmentation?

Edge detection Signup and view all the answers

Which of the following is NOT a pixel-based segmentation technique mentioned in the text?

K-means algorithm Signup and view all the answers

Which of the following is an advantage of edge-based segmentation according to the text?

Similar to how the human brain approaches segmentation Signup and view all the answers

Which of the following is NOT a region-based segmentation algorithm mentioned in the text?

Mean-shift algorithm Signup and view all the answers