网页SCAN TECHNIQUE • Standard coronal CT is INADEQUATE to understand 3D sinus anatomy, particularly in the frontal recess • Axial thin section (<1mm) helical CT • Axial, coronal, and sagittal reconstruction (3 mm thick or less) • Bone and soft tissue windows • Patients should only be scanned after a trial of maximal medical therapy (3-6 wks)
Ethmoid Sinus Disease - Radiology In Plain English
网页2023年11月18日 · CT Scan (Computed Tomography): A CT scan provides detailed cross-sectional images of the sinuses, allowing healthcare providers to identify inflammation, blockages, or structural abnormalities in the ethmoid sinuses accurately. MRI (Magnetic Resonance Imaging): MRI scans offer detailed images without radiation exposure. It helps visualize soft ...
CT Scan of the Paranasal Sinuses - Medscape
网页Today, CT is the radiologic examination of choice in evaluating the paranasal sinuses of a patient with sinusitis. The use of CT scanning combined with functional endoscopic sinus surgery...
Ethmoid sinusitis: Causes, symptoms, and treatment - Medical News Today
网页2023年2月17日 · Occasionally, a doctor may recommend an X-ray or a CT scan to determine the likely cause of the person’s symptoms. Treatment According to the CDC , a person’s sinus infection will usually get...
Imaging of Chronic and Exotic Sinonasal Disease: Review | AJR
网页Coronal unenhanced CT scan shows normal sinus anatomy, including each maxillary ostium (arrows), uncinate process (arrowheads), ethmoid bulla (B), middle nasal turbinate (M), inferior nasal turbinate (I), and infraorbital ethmoid cells or Haller cells (asterisks). Maxillary ostium enters infundibulum, which is space between uncinate process and ...
Pictorial essay: Anatomical variations of paranasal sinuses on ...
网页Technique of CT Scan for FESS. At our institution, we performed the scan with 64 slice multidetector computed tomography (MDCT) with the patient in supine position. Axial images of the sinuses are acquired with 0.625 collimation and from this raw data sagittal and coronal reformations are obtained using both soft tissue and bone window algorithms.
Posterior ethmoid sinus: a computed tomography analysis and ...
网页2022年5月4日 · The current study puts basic data on the CT detailed description of the posterior ethmoid and updates the CT knowledge about the posterior ethmoid from a CT perspective in order to improve surgeons’ and radiologist’s awareness of posterior ethmoid in the endoscopic field for optimum and safe surgery.
网页High-resolution thin-section computed tomography (CT), capable of accurately depicting the thin bony septa of the ethmoid bone and the superior paranasal sinuses, even in the presence of severe inflammatory soft tissue changes, may provide a method for precise preopera tive surgical mapping.
Radiologic Evaluation/Diagnostic Imaging of Paranasal Sinuses …
网页Multiplanar reformatted CT scans demonstrate bilateral suprabullar ethmoid air cells (SBE). The SBEs are usually located posterior and lateral to the frontal sinuses ( FS ). The presence of horizontal septation on axial images within the frontal sinus should suggest the possibility of suprabullar ethmoid air cell
Clinical and imaging features of ethmomaxillary sinus compared …
网页2023年8月8日 · Computed tomography (CT) scans of paranasal sinuses were obtained at 1 mm-section thickness. Using CT scans, we investigated the clinical features of EMS, measured maxillary sinus volume, and analyzed the presence of maxillary sinusitis. Results. EMS was observed in 26 of the 250 patients (10.4%). The …
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