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Radiographic Pathology for
Technologists, 5th Edition
Chapter 8
Cardiovascular System
Mosby items and derived items ©2009, 2007 by Mosby, Inc., an affiliate of Elsevier Inc.
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2
Anatomy and Physiology

Consists of:

Heart

Arteries

Capillaries

Veins

Pulmonary circulation

Systemic circulation
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Anatomy and Physiology

Heart

Location

Atria

Ventricles

Layers

Endocardium

Myocardium

Epicardium

Blood travel

Gas exchange
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4
Anatomy and Physiology

Cardiac cycle

Systole

Diastole

SA node
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Anatomy and Physiology

Electrocardiography

P wave

PR interval

QRS complex

T wave

QT duration
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Anatomy and Physiology

Circulatory vessels

Arteries
• Adventitia
• Media
• Intima and lumen

Veins

Capillaries
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Imaging Considerations

Chest radiography

Heart size

Cardiomegaly

Great vessels

Vascular lung markings


Pneumothorax

Pulmonary emphysema
Bony thorax

Scoliosis

Pectus excavatum
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Imaging Considerations

Chest radiography

Technical factors
• Patient positioning
• Technical factors
• Geometric factors
• Patient factors
• Image critique

One of most commonly performed radiographic
procedures
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Imaging Considerations & Anatomy
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Imaging Considerations

Echocardiography

M-mode echocardiography

2-D echocardiography
• Real-time imaging
• Transesophageal echocardiography (TEE)

Spectral Doppler

Color Doppler
• Carotid stenosis, DVT

Stress echocardiography
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Imaging Considerations
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Imaging Considerations

Nuclear cardiology


Used to diagnose CAD, congenital heart disease,
and cardiomyopathy
Myocardial perfusion scan
• Most widely used procedure

Gated cardiac blood pool scans
• Used to evaluate ventricles

Positron emission tomography (PET)
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Imaging Considerations
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Imaging Considerations

Computed tomography (CT)

Cardiac scoring

EBCT

Spiral CT

CT angiography (CTA)
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Imaging Considerations
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Imaging Considerations


Magnetic resonance imaging (MRI)

Recently gained in popularity for use in cardiac
studies

Uses cine loop

May be ECG gated
Magnetic resonance angiography (MRA)
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Imaging Considerations
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Imaging Considerations

Angiography

Most commonly
performed
procedure for
cardiovascular
disease

Diagnostic vs
therapeutic
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Imaging Considerations

Therapeutic angiography

Percutaneous transluminal coronary angioplasty
(PTCA)

Stent

Thrombolysis

Embolization

Transjugular intrahepatic portosystemic stent
(TIPSS)

Percutaneous transluminal angioplasty

Permanent catheterization
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20
Imaging Considerations
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Congenital and Hereditary Diseases

Fetal circulatory system
• Foramen ovale
• Ductus arteriosus

Incidence of congenital cardiovascular anomalies

Etiology
• Genetic disorders
• Chromosomal aberrations
• Environmental factors

Associated complications
• Murmur
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Congenital and Hereditary Diseases

Patent ductus arteriosus

Incidence

Diagnosis
• Echocardiography

Treatment

Prognosis
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Congenital and Hereditary Diseases
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Congenital and Hereditary Diseases

Coarctation of
the aorta

Incidence

Diagnosis

Radiographic
appearance

Treatment
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Congenital and Hereditary Diseases
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Congenital and Hereditary Diseases

Septal defects

Atrial septal defect

Ventricular septal defect

Cause

Incidence

Diagnosis

Radiographic appearance

Associated complications

Treatment
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Congenital and Hereditary Diseases
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Congenital and Hereditary Diseases

Transposition of the great vessels

Incidence

Diagnosis

Radiographic appearance

Treatment

Prognosis
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Congenital and Hereditary Diseases
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Congenital and Hereditary Diseases

Tetralogy of Fallot

Combination of
four defects

Diagnosis

Radiographic
appearance

Treatment
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Valvular Diseases

Symptoms

Associated clinical findings

Diagnosis


Noninvasive

Invasive
Cause of chronic valve disease

Rheumatic fever
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Valvular Diseases

Valvular stenosis

Cause

Mitral valve
prolapse

Incidence

Diagnosis

Radiographic

appearance

Prophylaxis

Treatment
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Valvular Diseases
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Congestive Heart Failure

Occurrence

Treatment

Left-sided CHF


Causes

Symptoms

Radiographic appearance
Right-sided CHF

Causes

Symptoms

Radiographic appearance
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35
Congestive Heart Failure
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Cor Pulmonale

Cause

Acute


Pulmonary embolism
Chronic

COPD

Symptoms

Diagnosis

Radiographic appearance

Treatment
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Degenerative Diseases

Atherosclerosis

Most prevalent disease in humans

Incidence

Predilection for aorta, coronary, and cerebral
arteries

Risk factors
• Controlled
• Uncontrolled

Atheroma formations
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Degenerative Diseases

Atherosclerosis

Formation of
atheroma
• Chronic
endothelial
injury

• Lipid theory
Ischemia

Signs and
symptoms

Diagnosis

Most common
cause of CAD
and CVA
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Degenerative Diseases

Coronary artery disease

Cause

Infarct

Associated complications
• Angina pectoris

Single most common cause of death in men and
women in U.S.
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Degenerative Diseases

Coronary artery disease

Risk factors

Diagnosis

Treatment
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Degenerative Diseases

Myocardial infarction (MI)

Cause
• Most common—acute thrombus of coronary artery

Signs and symptoms

Early medical intervention

Diagnosis

Treatment
• Thrombolytic therapy
• PCTA
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Aneurysms

Outpouching of vessel wall

Causes

Classifications

Saccular
• Cerebral artery

Fusiform
• Distal abdominal aorta

Dissecting
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Aneurysms
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Aneurysms

Abdominal aortic
aneurysm

Majority of
aneurysms

Diagnosis

Treatment
• Surgical repair if
greater than 6 cm
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Aneurysms

Thoracic
aortic
aneurysm

Cause

Diagnosis

Treatment
• Surgical
repair if
greater
than 6
cm
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Aneurysms

Extremities

Popliteal arteries
• Bilateral
• In conjunction with AAA
• Diagnosis
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Venous Thrombosis

Cause

Incidence

Phlebitis

Thrombus

Thrombophlebitis
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Venous Thrombosis


Diagnosis

Sonography

Venography
Treatment
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Venous Thrombosis
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Pathology Summary

Additive

Coarctation of aorta

Septal defects

Tetralogy of Fallot

Valvular disease

Congestive heart disease

Cor pulmonale
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