Medical Imaging Techniques Quiz

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Questions and Answers

What is the main purpose of contrast arthrography?

To visualize the soft tissue structures of joints after injecting contrast media (correct)

To examine dental cavities

To assess bone health in the spine

To evaluate lung function using radiation

Which of the following imaging modalities has reduced the necessity for radiographic contrast arthrography?

Mammography

Contrast computed tomography (CT) (correct)

Fluoroscopy

Positron Emission Tomography (PET)

What does the term 'arthro' refer to in arthrography?

Bone

Muscle

Cartilage

Joint (correct)

Which type of contrast media may be used in contrast arthrography?

Both radiopaque and radiolucent Signup and view all the answers

What is a common gauge size for a spinal needle used during the procedure described?

24-gauge Signup and view all the answers

What procedure usually follows skin preparation with Betadine during the spinal puncture?

Administration of a local anesthetic Signup and view all the answers

What is the approximate amount of contrast media usually injected during the procedure?

9-12 mL Signup and view all the answers

Which position is commonly used for spinal puncture during the procedure?

Prone position Signup and view all the answers

What position must the patient's head remain in while injecting contrast to prevent it from entering the cerebral ventricles?

Acute extension Signup and view all the answers

Why is it important to lock the image intensifier during a myelogram?

To prevent accidental contact with the radiation source Signup and view all the answers

What is the main goal of performing a hysterosalpingography (HSG)?

To investigate patency of the uterine tubes Signup and view all the answers

Where is the puncture usually made for myelography?

Lumbar spine Signup and view all the answers

Which type of contrast is generally used for myelography?

Nonionic, iodinated water-soluble contrast Signup and view all the answers

What can cause severe and fatal neurotoxic reactions if used for intrathecal injections during myelography?

Ionic contrast media Signup and view all the answers

When should a hysterosalpingography (HSG) be scheduled?

Within 10 days following onset of menstruation Signup and view all the answers

Which of the following is NOT a contraindication for hysterosalpingography?

Constipation Signup and view all the answers

What is the main purpose of introducing contrast into the uterus during hysterosalpingography?

To determine the size and shape of the uterus and uterine tubes Signup and view all the answers

What position is the patient typically placed in during hysterosalpingography?

Lithotomy position Signup and view all the answers

Why is an HSG considered therapeutic in some cases?

To open blocked uterine tubes Signup and view all the answers

What is a common indication for myelography?

Herniated lumbar disk Signup and view all the answers

What should be done before coming in for an HSG procedure?

Receive an enema until the return flow runs clear Signup and view all the answers

Study Notes

Arthrography

Main purpose of contrast arthrography: to evaluate joint problems
Reduced necessity for radiographic contrast arthrography due to MRI and CT scans
'Arthro' refers to joints in arthrography
Type of contrast media used in contrast arthrography: iodinated or gadolinium-based media
Common gauge size for spinal needle: 22-25 gauge
Procedure following skin preparation with Betadine: spinal puncture
Approximate amount of contrast media injected: 10-15 mL
Common position for spinal puncture: lateral decubitus or prone position
Patient's head position during contrast injection: flexed to prevent contrast from entering cerebral ventricles

Myelography

Main goal of myelography: to visualize the spinal canal and spinal cord
Puncture site for myelography: usually in the L2-3 or L3-4 interspace
Type of contrast used for myelography: water-soluble, non-ionic contrast media
Contrast that can cause severe neurotoxic reactions if used for intrathecal injections: ionic contrast media
Importance of locking the image intensifier during myelography: to minimize radiation exposure and ensure accurate imaging

Hysterosalpingography (HSG)

Main goal of HSG: to evaluate the uterus and fallopian tubes
Ideal time for scheduling HSG: during the follicular phase of the menstrual cycle
Contraindications for HSG: pregnancy, active pelvic infection, and vaginal bleeding
Non-contraindication for HSG: history of pelvic surgery
Purpose of introducing contrast into the uterus during HSG: to visualize the uterine cavity and fallopian tubes
Patient position during HSG: lithotomy position
Therapeutic effect of HSG: can help clear blocked fallopian tubes and improve fertility
Preparation before HSG procedure: patient should have an empty bladder and may take pain medication

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Description

Test your knowledge on various medical imaging techniques such as wrist arthrography and hysterosalpingography. Learn about indications, procedures, and common projections involved in these imaging procedures.