Multiple chronic rhinosinusitis (CRS) staging systems have been developed in an attempt to correlate symptoms with radiological imaging results. Currently, no perfect system exists. We sought to analyze the maxillary sinus (MS) using three-dimensional volumetric measurements and advanced high-resolution CT imaging.
We reviewed MS CT scans from 50 control subjects and 50 subjects with documented CRS involving at least one MS. The following measurements were recorded: (1) volume of MS free air, (2) MS mucosal thickening, and (3) MS lateral wall bony thickness. Average Hounsfield unit (HU) values for mucosal thickening among CRS subjects were also recorded. Values are expressed as mean ± SD and median. Values from the CRS patients were compared with healthy controls using Student's t-tests.
Among controls (n = 50), volumes (mL) of right and left MS were 24.1 ± 9.7 and 24.7 ± 9.0, respectively. Among CRS patients (n = 50), the portion of mucosal disease to total sinus volume was 51.8% (right) and 50.7% (left). Mean bony thickness (mm) in controls was 0.98 ± 0.2 (right) and 1.0 ± 0.3 (left). CRS patients had significantly greater bony thickness 1.9 ± 0.8 (right) and 2.0 ± 0.9 (left; p = 0.0001). HU for diseased MS were 30.1 ± 18.7 (right) and 35.7 ± 22.1 (left).
Three-dimensional volumetric analysis combined with HU calculations and bony thickness measurements represents a new and unique way to evaluate CT scans in patients with CRS. Additional studies correlating symptoms with imaging findings as well as analysis of all paranasal sinuses is the next step toward a novel staging system.
[Show abstract][Hide abstract] ABSTRACT: The aim of the study was to evaluate the volume of the maxillary sinus in patients with cleft alveolus.
This is a retrospective, descriptive study.
The 3-dimensional computed tomographic data of 218 maxillary sinuses of 109 patients with cleft alveolus were compared with those of 100 sinuses of 50 healthy individuals.
No significant difference in the maxillary sinus volume was found between the patients with cleft alveolus and the noncleft individuals. In the patients with cleft palate and alveolus, the maxillary sinus volume was significantly larger on the right side, but no significant difference was found between the cleft and noncleft sides.
The volume of the maxillary sinus in the patients with cleft alveolus is not different from that of the noncleft individuals. The information about the maxillary sinus is clinically important in executing such operations as endoscopic sinus surgery.
The Journal of craniofacial surgery 01/2013; 24(1):e23-6. DOI:10.1097/SCS.0b013e318267bdf3 · 0.68 Impact Factor
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.