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Weizhong Cheng Dept. Radiology, Zhongshan Hospital Institute of Medical Imaging, Shanghai. Radiology of Respiratory System. Basics Best exam results Appreciate the role radiology plays ? Instill an interest in radiology. Aims. Textbook Reference book Literature Internet Apps
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Weizhong Cheng Dept. Radiology, Zhongshan Hospital Institute of Medical Imaging, Shanghai Radiology of Respiratory System
Basics Best exam results Appreciate the role radiology plays ? Instill an interest in radiology Aims
Textbook Reference book Literature Internet Apps Teacher & classmate Before Class: Histology and Embryology Anatomy Pathology Internal Medicine Surgery Gynecology Pediatrics Neurology 。。。 Everything。。。U need to know
X-ray CT MR DSA US Nuclear Medicine PET/CT Radionuclide ventilation perfusion imaging methods
PA (posteroanterior) & Lateral More information Two views Standardized Distance Pt needs to be stable Portable Quick Anywhere One shot No standardization X-ray Techniques
Portable PA
P-A (relation of x-ray beam to patient) Techniques - Projection
A-P Supine/Erect Techniques - Projection (continued)
Lateral Techniques - Projection (continued)
Lateral Decubitus Techniques - Projection (continued) • Oblique
Type Orientation Rotation Inspiration/expiration Penetration Technical Details
Things to see • ABCDE… • Airways • Trachea, endotracheal tube, etc • Bones • Clavicles, ribs, etc… • Cardiac • Diaphragm (Right hemidiaphragm slightly higher (~1.5 cm) • Everything else (tubes), effusions
The big two densities are: (1) WHITE - Bone (2) BLACK - Air The others are: (3) DARK GREY- Fat (4) GREY- Soft tissue/water And if anything Man-made is on the film, it is: (5) BRIGHT WHITE - Man-made Densities
Right upper lobe: Lobes
Right middle lobe: Lobes (continued)
Right lower lobe: Lobes (continued)
Left lower lobe: Lobes (continued)
Left upper lobe with Lingula: Lobes (continued)
Lingula: Lobes (continued)
Left upper lobe - upper division: Lobes (continued)
Right border: Edge of (r) Atrium 3. Left border: (l) Ventricle + Atrium 4. Posterior border: Reft Ventricle 5. Anterior border: Right Ventricle Heart
IT’S NOT MINE…. Heart
Made of: 1. Pulmonary Art.+Veins 2. The Bronchi Left Hilum higher (max 1-2,5 cm) Identical: size, shape, density Hilum
Apices Behind the heart Costophrenic angle (CPA) Below the diaphragm Soft tissues ( breast, surgical emphysema) Ribs & clavicle Vertebrae Review areas:
Darker areas radiolucent Pneumothorax Cysts/bulla Air bronchograms Lighter areas Opacities Atelectasis “infiltrates” Blood Pus Water Nodules or mass Lung findings
Opacities • Lobar or not…. • Pneumonia • Pulmonary Edema • “fluffy,” diffuse, “bat wing” distribution • Hemorrhage • Can’t tell by x-ray, need bronch
RML pneumonia Opacities
Opacities RLL pneumonia
Causes:1. Adenopathies (neoplasia, infection)2. Primary Tumor3. Vascular4. Sarcoidosis The Enlarged Hila
Multiple Masses Metas