Released (2013) IBM SPSS Statistics for windows, Version 21.0. Am J Roentgenol 204(6):1255–1260īongartz G, Golding SJ, Jurik AG et al (1999) European guidelines on quality criteria for computed tomography. Shpilberg KA, Daniel SC, Doshi AH, Lawson W, Som PM (2015) CT of anatomic variants of the paranasal sinuses and nasal cavity: poor correlation with radiologically significant rhinosinusitis but importance in surgical planning. Tange RA (1991) Some historical aspects of the surgical treatment of the infected maxillary sinus.

adults: National Health interview Survey, 2001. Lucas JW, Schiller JS, Benson V (2004) Summary health statistics for U.S. Arch Otolaryngol Head Neck Surg 130(3):320–323 Shashy RG, Moore EJ, Weaver A (2004) Prevalence of the chronic sinusitis diagnosis in Olmsted County, Minnesota. Anat Rec Adv Integr Anat Evolut Biol 291(11):1564–1572 Radiology 281(1):10–21įatterpekar GM, Delman BN, Som PM (2008) Imaging the paranasal sinuses: where we are and where we are going. O’Brien WT Sr, Hamelin S (2016) Weitzel EK The preoperative sinus CT: avoiding a-CLOSE call with surgical complications. Low-dose CT PNS and standard-dose CT PNS are comparable in delineating the paranasal sinus anatomy, with a 3.53× reduction of effective radiation dose to patients. A moderate agreement (with kappa 0.50) in cases and substantial agreement (with kappa 0.69) in controls was observed between both observers. The difference in mean SD of CTDIvol (mGy), DLP (mGy-cm), effective dose (mSv), globe, and air noise between low and standard doses was statistically significant. Anatomical variants were comparable among cases and controls, with post-sellar sphenoid being most common and paradoxical middle turbinate being least common surgically important variant. The comparison and analysis of the quantitative and qualitative variables were done. Subjective assessment was done by two radiologists, and scores were given. Image quality was assessed using volume CT dose index (CTDI vol), dose length product (DLP), scan length, and noise. Prevalence of anatomical variants and sinusitis were compared. This was a prospective cross-sectional study consisting of 72 patients who were divided equally into cases (underwent low-dose CT for PNS) and controls (underwent CT for PNS using standard dose protocols). The purpose of this study was to assess the effectiveness of low-dose CT as compared to standard-dose CT in the identification of anatomical variants of paranasal sinus and rhinosinusitis. High doses of radiation lead to increased risk of head and neck malignancies, radiation-induced cataracts, hypothyroidism, and hyperthyroidism. Computed tomography (CT) is the gold standard for diagnosing sinusitis and anatomical variations and a guide for paranasal sinus (PNS) surgeries.

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