Topographic anatomy of bronchial arteries in the pig: a corrosion cast study

Lorentziadis, Michael; Chamogeorgakis, Themistokles; Toumpoulis, Ioannis K.; Karayannacos, Panayotis E.; Dosios, Theodosios

doi:10.1111/j.1469-7580.2005.00455.x

Cited by 11 publications

(7 citation statements)

References 22 publications

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“…Unlike in the human and pig where the main arterial supply of the tracheobronchial tree is by the bronchoesophageal artery which originates from the thoracic aorta (Lorentziadis et al . ), the bronchial supply in Xenopus is by the tracheobronchial trunk artery which arises from the pulmonary artery.…”

Section: Discussionmentioning

confidence: 99%

Microvascular anatomy and histomorphology of extrapulmonary bronchi in adult Xenopus laevis Daudin (Lissamphibia; Anura) point to a role in aerial gas exchange – histomorphology of tissue sections and scanning electron microscopy of vascular corrosion casts

Tangphokhanon

Lametschwandtner

2013

Acta Zoologica

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Tangphokhanon, W. and Lametschwandtner, A. 2014. Microvascular anatomy and histomorphology of extrapulmonary bronchi in adult Xenopus laevis Daudin (Lissamphibia; Anura) point to a role in aerial gas exchange -histomorphology of tissue sections and scanning electron microscopy of vascular corrosion casts. -Acta Zoologica (Stockholm) 95: 290-298.Studies on the amphibian respiratory tract microvascular anatomy are few. Using scanning electron microscopy (SEM) of vascular corrosion casts (VCCs) and light microscopy of perfusion-fixed tissue sections, we studied the bronchial microvascular anatomy in the adult South African Clawed Toad, Xenopus laevis Daudin. Histomorphology showed that the bronchial wall consists (from luminal to abluminal) of squamous epithelium, subepithelial capillary bed, cartilage rings or cartilage plates, a layer of dense connective tissue, a layer of smooth muscle cells, and squamous epithelium (serosa). SEM of VCCs reveals that bilaterally a ventral, a dorsal (Ø 77.21 AE 7.61 lm), and a caudal bronchial artery supply the bronchial subepithelial capillary bed. The ventral bronchial artery has 3-4 branching orders (interbranching distances: 506.3 AE 392.12 lm; branching angles of first-and second-order bifurcations: 24.60 AE 10.24°and 29.59 AE 14.3°). Casts of bronchial arteries display imprints of flow dividers and sphincters. Cranial and caudal bronchial veins (Ø 154.78 AE 49.68 lm) drain into pulmonary veins. They lack microvenous valves. The location of the dense subepithelial capillary meshwork just beneath the thin squamous bronchial epithelium and its drainage into the pulmonary veins make it likely that in Xenopus, bronchi assist in aerial gas exchange.

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Section: Discussionmentioning

confidence: 99%

Microvascular anatomy and histomorphology of extrapulmonary bronchi in adult Xenopus laevis Daudin (Lissamphibia; Anura) point to a role in aerial gas exchange – histomorphology of tissue sections and scanning electron microscopy of vascular corrosion casts

Tangphokhanon

Lametschwandtner

2013

Acta Zoologica

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“…The extrapulmonary topographic anatomy of bronchial arteries in pigs is similar to that in humans. In addition, with an irregular dichotomous and branching pattern, the porcine tracheobronchial tree highly resembles the human anatomy . Considering ethical concerns and the above‐listed reasons, we employed the BioQuest ® Inflatable Lung kit (Nasco, Fort Atkinson, WI) in our experiments.…”

Section: Acquisition and Validation Methodsmentioning

confidence: 99%

Thorax x‐ray and CT interventional dataset for nonrigid 2D/3D image registration evaluation

Wei

Jin

et al. 2018

Medical Physics

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Purpose The aim of this paper is to provide a novel, publicly available standard image dataset with a useful evaluation framework for assessing nonrigid two‐/three‐dimensional (2D/3D) registration algorithms. Acquisition and validation methods A pig lung model was used to obtain the image dataset. Inflated with different amounts of oxygen, a sequence of 3D volume data was acquired with computed tomography (CT), which ideally simulated different respiratory phases. With the model inflated and kept in certain states, 3D CT, 2D CT scout image and 2D x‐ray were acquired for the same respiratory phases, making them suitable to establish the evaluation dataset for 2D/3D registration algorithms. A total of 120 well‐distributed landmarks in every 3D volume were manually annotated and checked by several radiologists using semi‐automatic software to generate the dataset. Data format and usage notes All 3D image data were stored in both DICOM and ITK Meta format, and 2D image data were stored in DICOM format. A total of 120 landmarks were manually annotated for each 3D image. Among these landmarks, eight landmarks located on large branch of the bronchial tree were also annotated in 2D images. The landmark coordinates were stored in a text file. The detailed usage including a standard evaluation framework for the proposed dataset is also provided. The dataset can be downloaded from the Zenodo repository (https://doi.org/10.5281/zenodo.997887). Potential applications Our standard dataset was acquired with advanced clinical imaging devices and is quite suitable for quantitatively evaluating state‐of‐art, nonrigid 2D/3D registration algorithms.

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“…Five pigs underwent a left thoracotomy at the sixth intercostal space without ischaemia of the lung (group I). Seven pigs (group II) underwent a left thoracotomy and a 90‐min ischaemia of the left lung by means of clamping the ipsilateral pulmonary arterial trunk and the bronchoesophageal artery arising from the descending thoracic aorta as previously described 11 . Following the ischaemia period, the atraumatic vascular clamp was removed and the left lung was reperfused for 180 min.…”

Section: Methodsmentioning

confidence: 99%

“…Seven pigs (group II) underwent a left thoracotomy and a 90-min ischaemia of the left lung by means of clamping the ipsilateral pulmonary arterial trunk and the bronchoesophageal artery arising from the descending thoracic aorta as previously described. 11 Following the ischaemia period, the atraumatic vascular clamp was removed and the left lung was reperfused for 180 min. In a third group of seven animals (group III) NAC (Parvolex, IFET, Athens, Greece) 160 mg/kg was administered directly into the left pulmonary artery distally to the occlusion site in two equal divided doses at the beginning and the end of the ischaemia period ( Fig.…”

Section: Methodsmentioning

confidence: 99%

EFFECT OF N‐ACETYL‐l‐CYSTEINE ON LUNG ISCHAEMIA REPERFUSION INJURY IN A PORCINE EXPERIMENTAL MODEL

Chamogeorgakis

Kostopanagiotou

Kalimeris

et al. 2008

ANZ Journal of Surgery

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Topographic anatomy of bronchial arteries in the pig: a corrosion cast study

Cited by 11 publications

References 22 publications

Microvascular anatomy and histomorphology of extrapulmonary bronchi in adult Xenopus laevis Daudin (Lissamphibia; Anura) point to a role in aerial gas exchange – histomorphology of tissue sections and scanning electron microscopy of vascular corrosion casts

Microvascular anatomy and histomorphology of extrapulmonary bronchi in adult Xenopus laevis Daudin (Lissamphibia; Anura) point to a role in aerial gas exchange – histomorphology of tissue sections and scanning electron microscopy of vascular corrosion casts

Thorax x‐ray and CT interventional dataset for nonrigid 2D/3D image registration evaluation

EFFECT OF N‐ACETYL‐l‐CYSTEINE ON LUNG ISCHAEMIA REPERFUSION INJURY IN A PORCINE EXPERIMENTAL MODEL

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