Morphological variation of human lung fissures and lobes: An anatomical cadaveric study in North Karnataka, India

Thapa, Paras; Desai, Suresh P.

doi:10.4103/2349-5006.196326

Cited by 7 publications

(7 citation statements)

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“…In the present study, oblique ssure was incomplete in 28.95% of specimens which is also supported by studies in which 30% [11] and 30.43% [13] were reported. While, Nene et al (6%) and Tallapaneni (6.66%) revealed lesser incidence of this ssure [4,14] and in contrast Prakash et al (39.30%) found higher incidence of this ssure [15].…”

Section: Right Lungssupporting

confidence: 91%

“…It seemed that the variation on completeness occurred frequently on horizontal ssure of right lungs than oblique ssure in a population. The similar ndings were also reported by Thapa and Desai in which they found the incidence of complete oblique ssure in 70% and complete horizontal ssure in 30% [11]. Similarly, Dhanalakshmi et al noticed the incidence of complete oblique ssure in 68% and complete horizontal ssure was in 30% [12].…”

Section: Right Lungssupporting

confidence: 79%

“…In this study, absence of oblique ssure was not recorded in left lungs. Similarly absence of this ssure was also not reported by few authors [11]. Whereas Mamatha et al recorded in 5% [19] and Prakash et al found in 10.70% [15].…”

Section: Left Lungsmentioning

confidence: 57%

“…In the present study, complete oblique ssure was recorded in 64.52% of specimens. Similarly, Thapa and Desai; and Dhanalakshmi et al reported the incidence of this ssure in 60% [11] and 62% [12] respectively. In a study, this ssure was found in 73.33% [14] which is higher than the present study.…”

Section: Left Lungsmentioning

confidence: 88%

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A Study on Morphological Variations of Fissures and Lobes of Human Lungs with its Clinical Significance

et al. 2019

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Background: Fissures of lungs facilitate the movement of lobes which helps in expansion of lungs during breathing. The fissures may be complete, incomplete or absence. Sometime the accessory fissures may also present. Awareness of variations is essential during segmental resections as well as during radiological interpretation of lungs. Hence, the present study was aimed to study the morphological variations in fissures and lobes. Material and Methods: This study was consisted of sixty nine human lungs with irrespective of sex which were available in the department of anatomy of various medical colleges. All lung specimens were carefully observed and recorded for the presence of any variations in fissures and lobes. Results: The present study revealed that the absence of horizontal fissure was observed in 7.89%, while no specimen showed absence of oblique fissure on both sides. 35.48% of left lungs had incomplete oblique fissure compared to 28.95% of the right lungs. In addition, 22.58% of right lungs and 23.68% of left lungs showed presence of accessory fissure and lobes. From above, the incomplete and absent horizontal fissure was the most common abnormalities observed in this study. The accessory fissures were more common in lower lobe of right lung whereas in left lungs it was more common in upper lobe. Conclusion: The present study showed the wide range of variations in fissures and lobes of lungs. The knowledge of variations in morphology of lungs would be helpful for clinical diagnosis and pulmonary surgical procedures.

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Section: Right Lungssupporting

confidence: 91%

Section: Right Lungssupporting

confidence: 79%

Section: Left Lungsmentioning

confidence: 57%

Section: Left Lungsmentioning

confidence: 88%

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A Study on Morphological Variations of Fissures and Lobes of Human Lungs with its Clinical Significance

et al. 2019

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“…Existing automatic lobe segmentation methods largely depend on the anatomy of healthy human lungs, including atlas-based ( 35 , 36 ), airway-guided ( 37 ), and deep learning-based algorithms ( 38 ). Unfortunately, these anatomical fissure-based lung lobe segmentation algorithms can be susceptible to anatomical variations, particularly in human lungs that may have incomplete fissures ( 39 ). Besides, as the deformation of lung anatomy may occur after coil treatment and lung volume reduction procedures, additional manual correction steps are required on the atlas to ensure accurate lobe segmentation for post-treatment CT analysis ( 33 ).…”

Section: Discussionmentioning

confidence: 99%

Validation of an automated technique for quantification of pulmonary perfusion territories using computed tomography angiography

Zhao¹,

Malkasian²,

Hubbard³

et al. 2023

Quant Imaging Med Surg

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Background: Computed tomography pulmonary angiography (CTPA) is the primary modality for the detection and diagnosis of pulmonary embolism (PE) while the stratification of PE severity remains challenging using angiography. Hence, an automated minimum-cost path (MCP) technique was validated to quantify the subtended lung tissue distal to emboli using CTPA.Methods: A Swan-Ganz catheter was placed in the pulmonary artery of seven swine (body weight: 42.6±9.6 kg) to produce different PE severities. A total of 33 embolic conditions were generated, where the PE location was adjusted under fluoroscopic guidance. Each PE was induced by balloon inflation followed by computed tomography (CT) pulmonary angiography and dynamic CT perfusion scans using a 320-slice CT scanner. Following image acquisition, the CTPA and the MCP technique were used to automatically assign the ischemic perfusion territory distal to the balloon. Dynamic CT perfusion was used as the reference standard (REF) where the low perfusion territory was designated as the ischemic territory. The accuracy of the MCP technique was then evaluated by quantitatively comparing the MCP-derived distal territories to the perfusion-derived reference distal territories by mass correspondence using linear regression, Bland-Altman analysis, and paired sample t-test. The spatial correspondence was also assessed. Results:The MCP-derived distal territory masses (Mass MCP , g) and the reference standard ischemic territory masses (Mass REF , g) were related by Mass MCP =1.02Mass REF − 0.62 g (r=0.99, paired t-test P=0.51). The mean Dice similarity coefficient was 0.84±0.08. Conclusions:The MCP technique enables accurate assessment of lung tissue at risk distal to a PE using CTPA. This technique can potentially be used to quantify the fraction of lung tissue at risk distal to PE to further improve the risk stratification of PE.

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Intra-macro anatomical variations of the bronchial tree in an L2R2 pattern: Case report

Maneenin

Wanram

et al. 2020

Translational Research in Anatomy

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Morphological variation of human lung fissures and lobes: An anatomical cadaveric study in North Karnataka, India

Cited by 7 publications

References 0 publications

A Study on Morphological Variations of Fissures and Lobes of Human Lungs with its Clinical Significance

A Study on Morphological Variations of Fissures and Lobes of Human Lungs with its Clinical Significance

Validation of an automated technique for quantification of pulmonary perfusion territories using computed tomography angiography

Intra-macro anatomical variations of the bronchial tree in an L2R2 pattern: Case report

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