Chest Imaging Procedures

These flashcards cover key concepts and important information regarding chest imaging procedures and radiographic anatomy.

What is the most common type of radiographic examination?

Chest radiographic examinations are the most common of all radiographic procedures.

What are the three sections of chest radiographic anatomy?

The three sections are the bony thorax, the respiratory system, and the mediastinum.

What is the function of the bony thorax?

It provides a protective framework for the parts of the chest involved with breathing and blood circulation.

Which two topographic landmarks are important for chest positioning?

The vertebra prominens and the jugular notch.

What is the location of the vertebra prominens?

It corresponds to the seventh cervical vertebra, important for determining central ray location on a PA chest projection.

What does the jugular notch correspond to for an AP chest projection?

It is approximately 8 to 10 cm above the level of T7.

What structures are well visualized on a PA chest radiograph?

The lungs, trachea, heart, large blood vessels, and diaphragm.

How much shorter is the right lung compared to the left lung?

The right lung is usually about 2.5 cm shorter than the left lung.

What are the four important structures located in the mediastinum?

The thymus gland, heart and great vessels, trachea, and esophagus.

What is the average distance to the central ray from the vertebra prominens on a PA chest projection?

About 18 cm for females and 20 cm for males.

What is the purpose of chest x-rays?

To diagnose conditions such as pneumonia, heart failure, lung cancer, and tuberculosis.

What are the indications for performing a chest x-ray?

Symptoms like shortness of breath, chest pain, chronic cough, and fever.

What does the acronym COPD stand for?

Chronic obstructive pulmonary disease.

What are the technical factors for a PA chest projection?

Minimum SID—183 cm, IR size—35 × 43 cm, 110 to 125 kV range.

What is the recommended arm position for lateral chest projection?

Arms raised above head, chin up.

What is the significance of the CR in AP lordotic projections?

To rule out calcifications and masses beneath the clavicles.

How does the positioning for the lateral decubitus differ for small pleural effusions?

The patient lies on the side to show air-fluid levels.

What is the primary purpose of the AP projection in chest imaging?

To investigate the pathology involving the lungs, diaphragm, and mediastinum.

Where should the IR be positioned for a lateral position?

Top of the IR should be about 2.5 cm above the vertebra prominens.

What does the acronym EAM stand for in upper airway imaging?

External Auditory Meatus.

What is the appropriate technique to shield during chest imaging?

Shield radiosensitive tissues outside the region of interest.