Volume wizard diagnostic station

A total of 300 patients (150 females, 150 males) were included in this retrospective analysis of CT evaluation of paranasal sinuses, conducted at the Department of Medical Imaging, University Hospital in Krakow, Poland. Only patients over 18 years of age with no identifiable pathology in the sphenoid sinuses were deemed eligible for this study. Any head trauma or a surgical intervention in the nasal, orbital or cranial basis region excluded patients from the research group.
A spiral CT scanner (Siemens Somatom Sensation 16) was utilised in a standard procedure, in the option Siemens CARE Dose 4D, in order to obtain images of the paranasal sinuses. No contrast medium was administered to any of the patients. Images in the frontal and sagittal planes were obtained with the secondary reconstruction tool (multiplans reconstruction) from the images in the transverse plane. The medical images were processed with the help of Siemens Volume Wizard diagnostic station.

Two hundred ninety-six patients (n = 296; 147 females, 149 males) were referred to the Department of Medical Imaging of the University Hospital in Krakow, Poland. People over 18 years of age, without any visible/confirmed pathology in the sphenoid sinuses, were included in this retrospective analysis of the paranasal sinuses CT scans. The patients who suffered from a head injury or underwent a surgical procedure involving nasal, orbital, or cranial basis regions were excluded from the study.
Standard procedure in the option Siemens CARE Dose 4D applied while obtaining the CT scans of the paranasal sinuses, using spiral CT scanner (Siemens Somatom Sensation 16) . No contrast medium was given to the patients. Sagittal and frontal planes were obtained by using the multiplanar reconstruction (MPR) tool, after the images of transverse planes were taken. Siemens Volume Wizard diagnostic station was used in order to evaluate the data.
The analysis of the obtained images involved the three dimensions of each of the sphenoid sinuses studied: anteroposterior (in the longest part of the sinuses), transverse (in the widest part of the sinuses) and vertical dimensions (in the highest part of the sinuses).

The following study was conducted as a retrospective analysis of CT scans of a total of 359 patients, derived from the Department of Medical Imaging, University Hospital in Krakow, Poland. For the patients to be included, they had to be over 18 years of age and had a CT scan involving the paranasal sinuses. The exclusion criteria comprised any visible pathology, trauma or surgical intervention involving either the nasal, orbital or cranial basis (63 patients). Ultimately, 296 patients (147 females, 149 males) were included in this analysis.
Medical imaging of the paranasal sinuses was obtained with the help of the Siemens Somatom Sensation 16 spiral CT scanner. Standard procedure applied, utilising Siemens CARE Dose 4D option. At no point in the present study was the contrast medium administered to any of the patients. Multiplanar reconstruction tool was used for better visualisation of the paranasal sinuses in frontal and sagittal planes, reconstructed from the original images in the transverse plane. The authors processed the obtained im-aging data via the Siemens Volume Wizard diagnostic station.
The authors analysed the data by searching for the presence of the Onodi cell, as per the definition stated above. Whenever present, its laterality and sex of the patient was noted. Examples of the CT images presenting the Onodi cell were anonymised and attached in this work.