Each lung is divided into lobes separated from one another by a tissue fissure. The right lung has three major lobes; the left lung, which is slightly smaller because of the asymmetrical placement of the heart, has two lobes. Internally, each lobe further subdivides into hundreds of lobules....
In anesthetized and paralyzed pigs in the left decubitus position we obstructed, at functional residual capacity (FRC), either the right middle and lower lobes, or a small posterior basal lung unit, and then passively inflated the unobstructed remaining lung. Measurements were made of alveolar press...
Purpose To introduce a widely applicable workflow for pulmonary lobe segmentation of MR images using a recurrent neural network (RNN) trained with chest CT datasets. The feasibility is demonstrated for 2D coronal ultrafast balanced SSFP (ufSSFP) MRI. Methods Lung lobes of 250 publicly accessible CT...
measuring less than 3 mm in diameter. White et al.630reported on 14 patients with primary lung cancer overlooked on CT. They emphasized that problems in detection included nodules in the lower lobes, small focal air space opacities, thickening of thepleura, and endobronchiallesions. This study ...
with IPF. Twenty-three patients with IPF underwent a pulmonary function test and both low-dose conventional (supine position) and upright CT (standing position) during inspiration breath-holds. The volumes of the total lungs and lobes were larger in the standing than in the supine position in ...
For lung registration, we use segmentation of the lungs into the five pulmonary lobes (k=5). During training, we use linear interpolation to warp the one-hot segmentation masks since this results in a smoother loss function at the border of the segmentation. With nearest neighbor interpolation,...
Lung cancer is the leading cause of cancer-associated mortality worldwide1. Here we analysed 1,644 tumour regions sampled at surgery or during follow-up from the first 421 patients with non-small cell lung cancer prospectively enrolled into the TRACERx s
very dense areas such as effusions (third row), tumor or severe fibrosis (fourth row) .Right:U-net(LTRLobes), will distinguish between lung lobes but will not include very dense areas.LTRCLobes_R231will fuse LTRCLobes and R231 results.R231CovidWebis trained with aditional COVID-19 data....
Its location (almost exclusively in the lower lobes) is dependent on the availability of systemic arteries situated only in pulmonary ligaments between the lower lobes and the mediastinum. Further support for the acquired nature of this lesion is its almost complete absence in neonates and infants,...
The presence of air bronchograms in the cranial lung lobes suggested alveolar parenchymal pathology consistent with pulmonary edema, congestion, or cellular infiltration. Exploratory thoracotomy revealed a segmental torsion of the left cranial lung lobe. The affected lobe was removed and the puppy ...