Abstract
Aim
This study aimed to investigate the relationship between peripheral lung cancer and
the surrounding pulmonary vessels and bronchi using contrast-enhanced multidetector
computed tomography (MDCT) and to analyze associated factors such as pathology types,
stage, size, density, and location of peripheral lung cancer.
Materials and Methods
A total of 93 patients with solitary peripheral lung cancers underwent contrast-enhanced
MDCT before thoracotomy were enrolled. Multiplanar reconstruction, maximal intensity
projection, and volume rendering were used for demonstrating the patterns of the tumor–bronchi
(Br), tumor–pulmonary artery (PA) and tumor–pulmonary vein (PV) relationship, respectively.
Five subtypes were identified: Type1 (Br1, PA1 and PV1), Br, PA, or PV was erupted
at the edge of nodule; Type2 (Br2, PA2, and PV2), erupted at the center of nodule;
Type3 (Br3, PA3 and PV3), penetrated through the nodule; Type4, (Br4, PA4 and PV4),
contacting the nodule but stretched or encased; Type5 (Br5, PA5, and PV5), contacting
the nodule but smoothly compressed.
Results
Both bronchi and PA were interrupted in 70 (Type 1+2); both narrowed in 9 (Type 3+4).
The bronchi and PA changes surrounding the lung cancer had positive relations (χ2=12.3918, r=0.7524, P<.01). Br1 and PA1 were more often seen in the group of solid, ≥2.0 cm, and Stage
II–IV focal lesions, while Br2 and PA2, more often in the group of part-solid, non-solid,
<2.0 cm, and Stage I focal lesions. PV2 was more often seen in the part-solid and
non-solid focal lesions group, while PV (4+5), more often in solid focal lesions group.
Conclusion
MDCT can demonstrate and subtype relationships among peripheral lung cancer and the
bronchi, pulmonary arteries and pulmonary veins. This can be the basis for further
clinical research and differential diagnosis.
Keywords
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Article info
Publication history
Published online: June 25, 2010
Accepted:
April 2,
2010
Received:
February 15,
2010
Identification
Copyright
© 2011 Elsevier Inc. Published by Elsevier Inc. All rights reserved.
