INTRODUCTION TO CHEST RADIOLOGY CHI S ZEE M D Professor OF Radiology Director of international education KECK SCHOOL OF MEDICINE
INTRODUCTION TO CHEST RADIOLOGY CHI S. ZEE, M.D. Professor OF Radiology Director of International Education KECK SCHOOL OF MEDICINE
Know your limitations Evaluate film for Techniqu ue 1. Inspiratory Vs. Expiratory a good inspiration is completely through the 5th anterior ribs Expiratory films often have bibasilar compressive changes and crowding of vasculature which may simulate disease
Know Your Limitations - Evaluate Film for Technique 1. Inspiratory vs. Expiratory - A good inspiration is completely through the 5th Anterior ribs. - Expiratory films often have bibasilar compressive changes and crowding of vasculature which may simulate disease
ExPISATION INSPIRATION Same patient taken in forced expiration and inspiration demonstrating compressive changes that mimic disease
Same patient taken in forced expiration and inspiration demonstrating compressive changes that mimic disease
2. Rotation/ Position Clavicles Symmetric- equidistant from spinous process. A-P Vs, P-A chest films Describes direction of x-ray beam and which surface is closest to film. I.e. AP film -x-ray from Anterior to posterior with film behind patients back, Will magnify cardiac couette Lordotic vs. Apical view-techniques to visualize the apices Move the patient VS, angling the x-ray beam
2. Rotation/Position - Clavicles Symmetric - equidistant from spinous process. - - A-P vs. P-A chest films Describes direction of x-ray beam and which surface is closest to film. I.e. AP film - x-ray from Anterior to Posterior with film behind patient’s back. Will magnify cardiac silhouette. - Lordotic vs. Apical view- techniques to visualize the apices. - Move the patient vs. angling the x-ray beam
same patient rotated, distorting cardiac silhouette. Note appearance of clavicles
same patient rotated, distorting cardiac silhouette. Note appearance of clavicles