Download Free Medical Imaging the chest in trauma PowerPoint Presentation

Imaging the chest in trauma PowerPoint Presentation

DOWNLOAD MEDICAL POWERPOINT PRESENTATION

About This Presentation

Description : Check out this medical presentation on Radiology and Imaging, which is titled "Imaging the chest in trauma", to know about imaging the chest in trauma.

Tags : Radiology, Imaging, chest, trauma

Published on : Jul 28, 2021 | Views : 4678 | Downloads : 24

Shareable Url :

Embed Code :

Comment

Transcript

Slide 1-

Imaging the chest in trauma
Slide 2-

Chest trauma Blunt Penetrating
Slide 3-

Trauma Chest Radiograph Usually AP, often supine, frequently in poor inspiration.
Slide 4-

CT Chest
Slide 5-

Fractures and Dislocations Spine Ribs Clavicles Sternum Shoulders
Slide 6-

Spine Injuries Loss of alignment, fractures and paraspinal hematoma.
Slide 7-

Rib Fractures Indicator of underlying pleura, lung, liver, spleen, kidney injuries.
Slide 8-

Flail Chest Multiple rib fractures, especially if individual ribs fractured more than once, may cause paradoxical motion. Associated pulmonary contusion.
Slide 9-

Clavicle Injuries
Slide 10-

Sterno-clavicle joint dislocation
Slide 11-

Sterno-clavicle dislocation: CT
Slide 12-

Shoulder Injuries dislocations and scapula fractures
Slide 13-

CT Needed if Scapula Fracture Seen
Slide 14-

Sternum Fractures
Slide 15-

AIR where it shouldn’t be Pneumothorax Pneumomediastinum Subcutaneous emphysema Systemic venous air embolism Pneumopericardium Pneumoperitoneum/retroperitoneum
Slide 16-

pnx
Slide 17-

PNEUMOTHORAX: CT Much more sensitive Even a small traumatic pneumothorax is important, especially if patient mechanically ventilated or going to OR: A simple pneumothorax can be converted into a life- threatening tension pneumothorax.
Slide 18-

PNEUMOTHORAX: CT
Slide 19-

Pneumothorax: Simple Erect AP/PA view best Visceral pleural line No vessels or markings Variable degree of lung collapse No shift
Slide 20-

PNEUMOTHORAX: Simple
Slide 21-

PNEUMOTHORAX: Tension Erect AP/PA view best Shift of mediastinum/heart/trachea away from PTX side Depressed hemidiaphragm Degree of lung collapse is variable
Slide 22-

PNEUMOTHORAX: Tension
Slide 23-

PNEUMOTHORAX: Supine Supine AP view has limited sensitivity: 50% Deep sulcus sign Too sharp heart border/hemidiaphragm sign Increased lucency over lower chest Cant see vessels
Slide 24-

ppt slide no 24 content not found
Slide 25-

ppt slide no 25 content not found
Slide 26-

PNEUMOTHORAX: Open A large hole in the chest caused by a large low velocity missile. Air enters the hole rather than the trachea causing hypoxia.
Slide 27-

PNEUMOMEDIASTIUM Usually from ruptured alveoli. Can also be from trachea, bronchi, esophagus, bowel and neck injuries.
Slide 28-

Signs Linear paratracheal lucencies Air along heart border “V” sign at aortic- diaphragm junction Continuous diaphragm sign
Slide 29-

Continuous diaphragm sign
Slide 30-

V sign of naclerio
Slide 31-

PNEUMOMEDIASTINUM: CT
Slide 32-

Trachea/bronchi injuries Tears occur within 2cm of carina Persistant pneumothorax Large pneumomediastin um “Fallen lung”
Slide 33-

Subcutaneous Emphysema Causes: Same as pneumomediastin um
Slide 34-

Pneumopericardium
Slide 35-

Pneumoperitoneum Pneumoperitoneum and sometimes pneumo- retroperitoneum are seen on upright chest film, but occasionally are visible on supine chest radiograph.
Slide 36-

HEMOTHORAX Venous or arterial bleeding Can miss hundreds of cc’s on supine film
Slide 37-

HEMOTHORAX
Slide 38-

ppt slide no 38 content not found
Slide 39-

CT: HEMOTHORAX
Slide 40-

PULMONARY CONTUSION and LACERATION Contusion: Blood in intact lung parenchyma Laceration: Blood in torn lung parenchyma Can’t tell difference on chest film. Contusions peak in 2-3 days, begin to resolve in a week; lacerations take much longer to resolve and may leave scars
Slide 41-

Pulmonary Contusion and Laceration
Slide 42-

Marked contusions
Slide 43-

Contusions
Slide 44-

CT: Pulmonary Contusion
Slide 45-

DIAPHRAGM Injuries 5% of major blunt trauma, also thoraco- abdominal penetrating trauma Left clinically injured more than right 60/40 Sensitivity of Chest film 40%. CT better, but still misses some Hard signs: NGT through g.e. junction then up into chest, and hollow viscus above diaphragm Soft signs: Indistinct diaphragm, effusion, atelectasis
Slide 46-

Position of NG Tube
Slide 47-

Gut in Chest
Slide 48-

Vascular Injury Signs of mediastinal haematoma: widened mediastinum indistinct or abnormal aortic contour deviation of trachea or NGT to the right depression of left main bronchus widened paraspinal stripe
Slide 49-

ppt slide no 49 content not found
Slide 50-

CT Indirect signs of aortic injury: mediastinal haematoma periaortic fat stranding CTA : sensitivity 100%; specificity 100%. Signs of mediastinal haematoma: abnormal soft tissue density around mediastinal structures Location – periaortic haematoma than isolated mediastinal haematoma remote from the aorta. Signs of aortic injury: intraluminal filling defect (intimal flap or clot) abnormal aortic contour (mural haematoma) Pseudoaneurysm & extravasation of contrast
Slide 51-

ppt slide no 51 content not found
Slide 52-

ppt slide no 52 content not found
Slide 53-

ppt slide no 53 content not found