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Using CT Imaging for Nasal Septal Deviation

Using CT imaging as the basis for analyzing the cause and characteristics of nasal septal deviation (NSD) offers a precise and objective method to evaluate the anatomical nuances of the nasal septum. Focusing on studies that utilize CT scans allows for a comparison of methodologies and findings in a standardized context.


Reitzen and Shah (2011): In their study on NSD across different age groups, Reitzen, Chung, and Shah analyzed CT and MRI scans from 81 patients. They introduced a measure of tortuosity to compare nasal septal deviation among four age groups. Their findings suggest an increase in septal deviation with age, pointing towards a potential noncongenital etiology for most cases of NSD.


Lin et al. (2014): Conducting a computed tomography study using MATLAB and OsiriX on 64 participants, Lin and colleagues aimed to develop a new classification system for NSD. They measured the line to curve ratio, deviation area, and root mean square values to quantify regions of septal deformity. This approach aligns with the intention of Reitzen and Shah to quantify NSD accurately but applies a more detailed analysis involving multiple metrics to classify the deviation. Their work emphasizes maximum septal deviation seen at specific junctions, contributing to a functional classification system for NSD.


Ardeshirpour et al. (2016): This study aimed to determine whether findings of septal deviation on CT correlate with symptoms of nasal obstruction, involving an unspecified number of patients. The authors concluded that CT scan findings do not always correlate with patient experiences, highlighting a potential limitation in relying solely on CT imaging for surgical planning.


Moghadas et al. (2011): Using computational models based on CT scans of a single patient with septal deviation, Moghadas and colleagues investigated the impact of septal deviation on airflow and particle deposition in the nasal passages. While focusing on the functional impact of NSD, their study offers a complementary perspective to the anatomical insights provided by Reitzen and Shah.


Sedaghat et al. (2015): In a study evaluating the correlation between radiographic evaluation of septal deviation and physical examination findings, Sedaghat and colleagues analyzed CT scans from an unspecified number of patients. They found that radiographic evaluation of NSD correlates poorly with physical exam findings, suggesting the importance of integrating CT findings with clinical assessments for a comprehensive understanding of NSD.


By examining these studies, which all utilize CT imaging to evaluate NSD, we gain a nuanced understanding of the condition's etiology, classification, and clinical implications. While Reitzen and Shah's study provides a foundational perspective on the prevalence and development of NSD across different ages, subsequent studies have built upon this understanding by offering more detailed classification systems, exploring the relationship between anatomical deviations and clinical symptoms, and examining the functional impacts of NSD. Together, these studies underscore the multifaceted nature of diagnosing and managing NSD, highlighting the importance of a comprehensive approach that considers both anatomical and functional aspects.

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