The following table or figure may be downloaded to PowerPoint for personal use in teaching and presentations. This feature is available to all subscribers to the journal.
You MUST read and follow the guidelines at Request to Reproduce AJR Content if you are distributing or using AJR content beyond academic use (limited distribution, non-revenue producing, or educational purposes).
(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.
Fig. 1C. —Upper pulmonary lobe in 31-year-old man with pulmonary
nodules. S1, S2, and S3 = segments 1, 2, and 3, respectively. Transverse
ECG-gated CT images (A and C) with segmental separations
(white lines) and corresponding subtraction images (B and
D, respectively) emphasize differences in where pulmonary structures
are located during 25% and 83% cardiac R-R intervals. In right upper lobe, two
axes of motion can be identified: aortic arch and superior vena cava
(arrowhead, B) convey cardiovascular motion to segment 1; and
aortic arch and trachea (arrow, B) convey cardiovascular
motion to segment 2. In left upper lobe, cardiovascular motion that conveyed
to pulmonary parenchyma originated homogeneously from aortic arch
(arrowheads, D). Black lines delineate chest wall.
