Lung lobe modeling and segmentation with individualized surface meshes

2008 ◽  
Author(s):  
Thomas Blaffert ◽  
Hans Barschdorf ◽  
Jens von Berg ◽  
Sebastian Dries ◽  
Astrid Franz ◽  
...  
Keyword(s):  
Lung Lobe ◽  
Surface Meshes

Fully automatic lung lobe segmentation using V/Q SPECT/CT images

2020 ◽  
Author(s):  
A Király ◽  
S Urbán ◽  
Z Besenyi ◽  
L Pávics ◽  
N Zsótér ◽  
...  
Keyword(s):  
Ct Images ◽  
Lung Lobe ◽  
Fully Automatic ◽  
Lobe Segmentation

Pulmonary hair embolism in a rescued free-ranging Eurasian otter Lutra lutra in Kinmen, Taiwan

2020 ◽  
Vol 142 ◽  
pp. 55-61
Author(s):  
WT Li ◽  
YL Chiang ◽  
TY Chen ◽  
CL Lai
Keyword(s):  
Foreign Body ◽  
Traumatic Injury ◽  
Lung Parenchyma ◽  
Giant Cells ◽  
Hair Shaft ◽  
Lutra Lutra ◽  
Lung Lobe ◽  
Eurasian Otter ◽  
Foreign Body Giant Cells ◽  
Free Ranging

Eurasian otters Lutra lutra are listed as Near Threatened on the IUCN Red List and are imperiled by habitat loss, water pollution, and poaching. Harassment and attacks by stray animals are also recognized threats to the health of wild Eurasian otters. Pulmonary hair embolism is a possible complication in animals with deep traumatic injury, but to date no cases have been reported in wildlife. A free-ranging, adult male Eurasian otter was rescued due to severe emaciation and multiple bite wounds. The otter died 3 d after rescue and was necropsied. Grossly, a 1.5 × 1.5 × 1.5 cm firm nodule was observed in the left cranial lung lobe. Histologically, a fragment of hair shaft surrounded by multinucleated foreign body giant cells was observed in a medium-sized vein, and extensive eosinophilic infiltration was noted in the adjacent vascular wall and lung parenchyma. Based on the gross and histological findings, the pulmonary lesion was consistent with eosinophilic pneumonia and vasculitis induced by hair embolism. The presence of well-formed multinucleated foreign body giant cells and eosinophils may imply a late stage of foreign body reaction, and thus the presumptive source of hair embolism is an animal bite. This is the first report of pulmonary hair embolism associated with animal bite in a rescued free-ranging Eurasian otter.

scholarly journals Association between clinical respiratory signs, lung lesions detected by thoracic ultrasonography and growth performance in pre‐weaned dairy calves

2021 ◽  
Vol 74 (1) ◽  
Author(s):  
Inmaculada Cuevas-Gómez ◽  
Mark McGee ◽  
José María Sánchez ◽  
Edward O’Riordan ◽  
Nicky Byrne ◽  
...  
Keyword(s):  
Respiratory Disease ◽  
Rectal Temperature ◽  
Clinical Signs ◽  
Live Weight ◽  
Dairy Calves ◽  
Post Mortem ◽  
Lung Lesions ◽  
Lung Lobe ◽  
Lung Consolidation ◽  
Severe Lung

Abstract Background Bovine respiratory disease (BRD) is the main cause of mortality among 1-to-5 month old calves in Ireland, accounting for approximately one-third of deaths. Despite widespread use of clinical respiratory signs for diagnosing BRD, lung lesions are detected, using thoracic ultrasonography (TUS) or following post-mortem, in calves showing no clinical signs. This highlights the limitation of clinical respiratory signs as a method of detecting sub-clinical BRD. Using 53 purchased artificially-reared male dairy calves, the objectives of this study were to: (i) characterise the BRD incidence detected by clinical respiratory signs and/or TUS, (ii) investigate the association between clinical respiratory signs and lung lesions detected by TUS, and (iii) assess the effect of BRD on pre-weaning growth. Results Clinical BRD (based on Wisconsin clinical respiratory score and/or rectal temperature > 39.6 ºC) was detected in 43 % and sonographic changes (lung lesions) were detected in 64 % of calves from purchase (23 (SD; 6.2) days of age) until weaning, 53 days post-arrival. Calves with clinical BRD were treated. Sixty-one per cent calves affected with clinical BRD had lung lesions 10.5 days (median) before detection of clinical signs. Moderate correlations (rsp 0.70; P < 0.05) were found between cough and severe lung lesions on arrival day, and between rectal temperature > 39.6 ºC and lung lesions ≥ 2 cm2 on day 7 (rsp 0.40; P < 0.05) post-arrival. Mean average daily live weight gain (ADG) of calves from purchase to weaning was 0.75 (SD; 0.10) kg; calves with or without clinical BRD did not differ in ADG (P > 0.05), whereas ADG of those with severe lung lesions (lung lobe completely consolidated or pulmonary emphysema) was 0.12 kg/d less (P < 0.05) than calves without lung lesions. Conclusions Thoracic ultrasonography detected lung consolidation in calves that did not show signs of respiratory disease. The presence of severe lung lesions was associated with reduced pre-weaning growth. These findings emphasise the importance of using TUS in addition to clinical respiratory scoring of calves for an early and accurate detection of clinical and sub-clinical BRD.

scholarly journals Correlation between CT findings and outcomes in 46 patients with coronavirus disease 2019

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Qiang Lei ◽  
Guangming Li ◽  
Xiaofen Ma ◽  
Junzhang Tian ◽  
Yun fan Wu ◽  
...  
Keyword(s):  
Ground Glass Opacity ◽  
Ground Glass ◽  
Short Term ◽  
Lung Lobe ◽  
Reactive Protein ◽  
Ct Findings ◽  
Short Term Mortality ◽  
Recovery Group ◽  
Diffuse Distribution ◽  
Death Group

AbstractThe aim of this study was to analyze initial chest computed tomography (CT) findings in COVID-19 pneumonia and identify features associated with poor prognosis. Patients with RT-PCR-confirmed COVID-19 infection were assigned to recovery group if they made a full recovery and to death group if they died within 2 months of hospitalization. Chest CT examinations for ground-glass opacity, crazy-paving pattern, consolidation, and fibrosis were scored by two reviewers. The total CT score comprised the sum of lung involvement (5 lobes, scores 1–5 for each lobe, range; 0, none; 25, maximum). 40 patients who recovered from COVID-19 and six patients who died were enrolled. The initial chest CTs showed 27 (58.7%) patients had ground-glass opacity, 19 (41.3%) had ground glass and consolidation, and 35 (76.1%) patients had crazy-paving pattern. None of the patients who died had fibrosis in contrast to six (15%) patients who recovered from COVID-19. Most patients had subpleural lesions (89.0%) as well as bilateral (87.0%) and lower (93.0%) lung lobe involvement. Diffuse lesions were present in four (67%) patients who succumbed to coronavirus but only one (2.5%) patient who recovered (p < 0.001). In the death group of patients, the total CT score was higher than that of the recovery group (p = 0.005). Patients in the death group had lower lymphocyte count and higher C-reactive protein than those in the recovery group (p = 0.011 and p = 0.041, respectively). A high CT score and diffuse distribution of lung lesions in COVID-19 are indicative of disease severity and short-term mortality.

Endovascular Repair of Diffuse Pulmonary Arteriovenous Malformations with Systemic Arterial Shunts

2021 ◽  
pp. 153857442199694
Author(s):  
Eijun Sueyoshi ◽  
Hirofumi Koike ◽  
Hiroki Nagayama ◽  
Xi He ◽  
Ichiro Sakamoto ◽  
...  
Keyword(s):  
Endovascular Repair ◽  
Coil Embolization ◽  
Arteriovenous Malformations ◽  
Rare Case ◽  
Pulmonary Arteriovenous Malformations ◽  
Lung Lobe

Diffuse pulmonary arteriovenous malformations (PAVMs) are defined as arteriovenous malformations (AVMs) involving subsegmental, segmental, or both types of arteries in at least 1 lung lobe and are more extensive than multiple PAVMs. Diffuse PAVMs involving systemic arterial shunts are very rare. We describe a rare case, in which diffuse PAVMs involving systemic arterial shunts were successfully treated with coil embolization.

Mechanisms leading to lung edema in pulmonary embolization

1960 ◽  
Vol 198 (3) ◽  
pp. 543-546 ◽  
Author(s):  
S. A. Kabins ◽  
J. Fridman ◽  
J. Neustadt ◽  
G. Espinosa ◽  
L. N. Katz
Keyword(s):  
Pulmonary Edema ◽  
Capillary Permeability ◽  
Lysergic Acid ◽  
Lung Edema ◽  
Pulmonary Infarction ◽  
Edema Formation ◽  
Lung Lobe ◽  
Pulmonary Embolization ◽  
Sympathetic Nervous ◽  
Lung Lobes

A localized pulmonary infarction was produced by injecting a starch suspension into the pulmonary artery wedge position of one lung lobe in pentobarbitalized dogs, and the effect of three so-called antiserotonins on the ensuing pulmonary edema was determined. Edema was inhibited in the nonembolized lung lobes in 88% of the B.A.S. (1-benzyl-2-methyl-5-methoxytryptamine HCl), 45% of the DHE (dihydroergotamine), and 12% of the BOL (2-brom- d-lysergic acid diethylamide) dogs. Reasons are given for assuming that the actions of B.A.S. and DHE are due to their antiadrenergic rather than to any antiserotonin properties which they may have. Serotonin, therefore, at most has a slight role in the pulmonary edema formation caused by starch emboli. It is postulated that the emboli by producing an infarct and setting up a reflex mediated through the sympathetic nervous system, cause the release in turn of catecholamines and of histamine, the latter being immediately responsible for the capillary permeability change leading to pulmonary edema.

Lung Lobe Segmentation Based on HRCT Data

2010 ◽  
Author(s):  
Zhiqiong Wang ◽  
Xianfeng Meng ◽  
Yue Zhao ◽  
Hongchi Xue ◽  
Qianxi Li ◽  
...  
Keyword(s):  
Lung Lobe ◽  
Lobe Segmentation

Klippel–Feil syndrome and levo-looped transposition of the great arteries

2014 ◽  
Vol 25 (3) ◽  
pp. 591-593 ◽  
Author(s):  
Efrén Martínez-Quintana ◽  
Fayna Rodríguez-González
Keyword(s):  
Congenital Heart ◽  
Cervical Vertebrae ◽  
Coarctation Of The Aorta ◽  
Syndrome Type ◽  
Short Neck ◽  
Cardiac Defects ◽  
Lung Lobe ◽  
Lung Agenesis ◽  
Skeletal Disorder ◽  
Anomalous Pulmonary Venous Connection

AbstractKlippel–Feil syndrome is a skeletal disorder characterised by low hairline and a short neck due to abnormal fusion of two or more cervical vertebrae. Although congenital heart and lung defects are infrequent, some abnormalities such as cor triatriatum, coarctation of the aorta, total anomalous pulmonary venous connection, or lung agenesis have been reported. The challenge of recognising Klippel–Feil syndrome lies in the fact that there is an association of this syndrome with other significant conditions such as skeletal, genitourinary, neurological, ear, and some cardiac defects. We report a Klippel–Feil syndrome type III 14-year-old patient with a levo-looped transposition of the great arteries. In addition, the patient had agenesis of the left upper-lung lobe.

3.1 Preparation of Monocellular Lung Suspension from a Mouse Lung Lobe v1

protocols.io ◽  
2020 ◽  
Author(s):  
Helen Graves ◽  
Steven Evans ◽  
Michael Fauler ◽  
Manfred Frick ◽  
Sterghios A. Moschos
Keyword(s):  
Mouse Lung ◽  
Lung Lobe
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