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Related Experiment Videos

Small peripheral lung carcinoma evaluated with incremental dynamic CT: radiologic-pathologic correlation

K Yamashita1, S Matsunobe, R Takahashi

  • 1Department of Radiology, Shiga Health Insurance Hospital, Otsu, Japan.

Radiology
|August 1, 1995
PubMed
Summary
This summary is machine-generated.

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Incremental dynamic computed tomography (CT) enhances peripheral lung cancer detection. CT enhancement correlates with small vessel count and elastic fiber distribution in tumors, aiding diagnosis.

Area of Science:

  • Radiology
  • Oncology
  • Pathology

Background:

  • Peripheral lung cancer diagnosis can be challenging.
  • Computed tomography (CT) is a key imaging modality.
  • Understanding tumor vascularity and interstitial structure is crucial for diagnosis.

Purpose of the Study:

  • To correlate incremental dynamic computed tomography (CT) findings with pathologic features in peripheral lung cancer.
  • To investigate the relationship between CT enhancement patterns and tumor microvasculature.
  • To assess the utility of CT in reflecting interstitial elastic fiber distribution.

Main Methods:

  • Evaluated 18 patients with peripheral lung lesions (<3 cm).
  • Utilized incremental dynamic CT to calculate CT values at various time points post-contrast.

Related Experiment Videos

  • Compared maximum CT attenuation with pathologic findings, including vessel number and elastic fiber distribution.

    • Main Results:

    • All lesions showed statistically significant enhancement (P < .0001).
    • Maximum CT attenuation positively correlated with the number of small vessels (r = .77).
    • Elastic fiber distribution correlated with both maximum attenuation (P = .04) and small vessel count (P = .01, P = .008).

    Conclusions:

    • Enhancement characteristics in lung carcinomas reflect tumoral vascularity.
    • CT enhancement patterns are associated with the distribution of elastic fibers in the tumor interstitium.
    • Incremental dynamic CT provides insights into the microstructural components of peripheral lung cancer.