Related Experiment Video
Updated: Aug 6, 2026
10:26
A 3D Digital Model for the Diagnosis and Treatment of Pulmonary Nodules
Published on: May 19, 2023
Small pulmonary nodules: volumetrically determined growth rates based on CT evaluation
D F Yankelevitz1, A P Reeves, W J Kostis
1Department of Radiology, New York Presbyterian Hospital-Weill Cornell Medical Center, Building Starr-8A23, 525 E 68th St, New York, NY 10021, USA. dyankele@mail.med.cornell.edu
Radiology
|September 30, 2000
Summary
High-resolution computed tomographic (CT) volumetric measurements accurately assess small pulmonary nodule growth and malignancy. Three-dimensional (3D) CT techniques precisely calculate nodule volume and doubling times, aiding in diagnosis.
Area of Science:
- Radiology
- Pulmonary Medicine
- Medical Imaging
Background:
- Accurate assessment of small pulmonary nodules is crucial for early diagnosis and management of lung cancer.
- Traditional two-dimensional imaging methods may have limitations in precisely measuring nodule volume and growth.
- High-resolution computed tomography (CT) offers advanced imaging capabilities for pulmonary nodule evaluation.
Purpose of the Study:
- To evaluate the accuracy of high-resolution CT volumetric measurements for small pulmonary nodules.
- To determine the utility of these measurements in assessing nodule growth and malignancy status.
- To assess the application of three-dimensional (3D) techniques in nodule volume and growth analysis.
Main Methods:
- Three experiments using synthetic nodules (spherical and deformable) were conducted to assess volume measurement accuracy.
- Isotropic resampling and 3D image extraction techniques were employed.
- The study analyzed nodule growth and calculated doubling times in 13 patients with known diagnoses and initial nodule diameters under 10 mm.
Main Results:
- Volume measurements of synthetic nodules demonstrated accuracy within +/-3%.
- Malignant nodules exhibited growth with doubling times less than 177 days, and some showed asymmetric growth patterns detectable by 3D CT.
- Benign nodules had doubling times of 396 days or greater or showed decreased volume.
Conclusions:
- High-resolution CT volumetric measurements provide accurate volume determination for small pulmonary nodules.
- These measurements are valuable for assessing nodule growth and calculating doubling times.
- 3D CT techniques enhance the ability to detect subtle growth patterns, aiding in malignancy assessment.
