CXR imaging features video – Part 1 Back to: General X-ray eLearning These videos are not designed to instruct the learner on proper image critique but assist in understanding important radiographic concepts. Part 1 of a multiple video series. Previous Lesson Radiographic Density and Contrast Part 2 Lesson 3 within section Image Critique. Next Lesson Quiz Lesson 2 within section Common Radiographic Features. You must enroll in this course to access course content.