Aortic ostia of the bronchial arteries and tracheal bifurcation: MDCT analysis

Ziyawudong, Julaiti; Kawai, Nobuyuki; Sato, Morio; Ikoma, Akira; Sanda, Hiroki; Takeuchi, T; Minamiguchi, Hiroki; Nakaï, Motoki; Tanaka, Takami; Sonomura, Tetsuo

doi:10.4329/wjr.v4.i1.29

Cited by 11 publications

(11 citation statements)

References 10 publications

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“…Most authors have agreed that, irrespective of sex and age, the right bronchial angle was smaller than the left one [9,12,13,15,16,19–21,25,26]. According to Harjeet et al [9], in the 3 groups of fetuses with CRL of 61–130 mm, 131–200 mm, and 201–270 mm, the left bronchial angles were consequently wider than the right ones, and averaged 32.17±6.98° vs. 17.37±7.77°, 33.79±8.57° vs. 19.75±8.73°, and 34.74±3.67° vs. 20.54±1.86°, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…Both major anatomical [18] and clinical textbooks [29] support that inhaled foreign bodies are more likely (70%) to enter the right main bronchus than the left because the former is wider and steeper, slightly deviating from the midline of the trachea [12,13,16,19–21,30]. Some authors [31,32] emphasized the greater airflow through the right lung, and the left position of the carina.…”

Section: Discussionmentioning

confidence: 99%

“…As presented in helical CT images [17], the interbronchial angle is somewhat wider than the subcarinal one. The tracheal bifurcation angle was found to vary from 40° to 99°, on average 60–65° [18–21]. Interestingly enough, in Indian population the subcarinal angle was considerably smaller, and averaged 53.54° in fetuses with CRL of 131–200 mm, 62.98° in neonates, 58.58° in children aged 1–10 years, and 54.56° in teenagers [22].…”

Section: Introductionmentioning

confidence: 99%

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Tracheo-bronchial angles in the human fetus – an anatomical, digital, and statistical study

Daroszewski

Szpinda

Flisiński

et al. 2013

Med Sci Monit Basic Res

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BackgroundBoth the advancement of visual techniques and intensive progress in perinatal medicine result in performing airway management in the fetus and neonate affected by life-threatening malformations. This study aimed to examine the 3 tracheo-bronchial angles, including the right and left bronchial angles, and the interbronchial angle, in the fetus at various gestational ages.Material/MethodsUsing methods of anatomical dissection, digital image analysis with an adequate program (NIS-Elements BR 3.0, Nikon), and statistics, values of the two bronchial angles and their sum as the interbronchial angle were semi-automatically measured in 73 human fetuses at the age of 14–25 weeks, derived from spontaneous abortions and stillbirths.ResultsNo male-female differences between the parameters studied were found. The 3 fetal tracheo-bronchial angles were found to be independent of age. The right bronchial angle ranged from 11.4° to 41.8°, and averaged 26.9±7.0° for the whole analyzed sample. The values of left bronchial angle varied from 24.8° to 64.8°, with the overall mean of 46.2±8.0°. As a consequence, the interbronchial angle totalled 36.2–96.6°, and averaged 73.1±12.7°.ConclusionsThe tracheo-bronchial angles change independently of sex and fetal age. The left bronchial angle is wider than the right one. Values of the 3 tracheo-bronchial angles are unpredictable since their regression curves of best fit with relation to fetal age cannot be modelled. Both of the 2 bronchial angles and the interbronchial angle are of great relevance in the location of inhaled foreign bodies, and in the diagnosis cardiac diseases and mediastinal abnormalities.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Tracheo-bronchial angles in the human fetus – an anatomical, digital, and statistical study

Daroszewski

Szpinda

Flisiński

et al. 2013

Med Sci Monit Basic Res

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“…MDCT is one such modality and is routinely used in clinical practice. The anatomical characteristics of the right and the left BAs have been also reported using MDCT [13][14][15][16][17]. The findings of the representative MDCT studies of the BA anatomy are summarized in Table 2, along with those from the cadaver dissection studies [18,19], including this study.…”

Section: Discussionmentioning

confidence: 87%

A new anatomical classification of the bronchial arteries based on the spatial relationships to the esophagus and the tracheobronchus

et al. 2016

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“…All animals had a common trunk of the right and left bronchial arteries without anastomosis to the intercostal artery. A common tract bronchial artery is reported generally to divide from the ventral surface of thoracic aorta with least interaction with the intercostal arteries [20,21] . Then, the different frequency of paraplegia following BAE between the two species appears to depend on the different branching style of the bronchial artery.…”

Section: Discussionmentioning

confidence: 99%

Safety of bronchial arterial embolization with n-butyl cyanoacrylate in a swine model

Tanaka

Kawai²,

Sato³

et al. 2012

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AIM:To compare the efficacy and safety of bronchial artery embolization (BAE) with n-butyl cyanoacrylate (NBCA) and gelatin sponge particles (GSPs). METHODS:Six healthy female swine were divided into two groups to be treated with BAE using NBCAlipiodol (NBCA-Lp) and using GSPs. The occlusive durability, the presence of embolic materials, the response of the vessel wall, and damage to the bronchial wall and pulmonary parenchyma were compared. RESULTS:No animals experienced any major complication. Two days later, no recanalization of the bronchial artery was observed in the NBCA-Lp group, while partial recanalization was seen in the GSP group. Embolic materials were not found in the pulmonary artery or pulmonary vein. NBCA-Lp was present as a bubblelike space in bronchial branch arteries of 127-1240 µm, and GSPs as reticular amorphous substance of 107-853 µm. These arteries were in the adventitia outside the bronchial cartilage but not in the fine vessels inside the bronchial cartilage. No damage to the bronchial wall and pulmonary parenchyma was found in either group. Red cell thrombus, stripping of endothelial cells, and infiltration of inflammatory cells was observed in vessels embolized with NBCA-Lp or GSP. CONCLUSION:NBCA embolization is more potent than GSP with regard to bronchial artery occlusion, and both materials were present in bronchial branch arteries ≥ 100 µm diameter.

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Aortic ostia of the bronchial arteries and tracheal bifurcation: MDCT analysis

Abstract: CTA using MDCT provides details of the relation between bronchial artery ostia and tracheal bifurcation.

Cited by 11 publications

References 10 publications

Tracheo-bronchial angles in the human fetus – an anatomical, digital, and statistical study

Tracheo-bronchial angles in the human fetus – an anatomical, digital, and statistical study

A new anatomical classification of the bronchial arteries based on the spatial relationships to the esophagus and the tracheobronchus

Safety of bronchial arterial embolization with n-butyl cyanoacrylate in a swine model

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