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Computed Tomography

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...

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Updated: Jun 11, 2026

Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities

Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities

Published on: May 24, 2022

Preoperative computed tomography evaluation in sinus surgery: a template-driven approach.

Samuel S Becker¹

¹Becker Nose and Sinus Center, LLC, 2301 Evesham Road, Suite 404, Voorhees, NJ 08043, USA. sam.s.becker@gmail.com <sam.s.becker@gmail.com>

Otolaryngologic Clinics of North America

|July 6, 2010

Summary

This summary is machine-generated.

Computed tomography (CT) scans reveal common paranasal sinus and skull base abnormalities. A template-driven analysis aids pre-operative planning for endoscopic sinus surgery.

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Published on: January 28, 2020

Area of Science:

Otolaryngology
Radiology
Surgical Anatomy

Background:

Anatomic variations in the paranasal sinuses and skull base are frequently encountered.
Pre-operative knowledge of these variations is crucial for successful surgical outcomes.

Purpose of the Study:

To present a systematic, template-driven method for analyzing computed tomography (CT) scans.
To enhance pre-operative planning for endoscopic sinus surgery (ESS).

Main Methods:

Development of a standardized template for CT scan review.
Application of the template to identify and document relevant anatomical structures and abnormalities.
Correlation of CT findings with surgical planning considerations.

Main Results:

The template facilitates consistent identification of key anatomical landmarks.
Abnormalities such as mucosal thickening, polyps, and bony dehiscence are systematically cataloged.
The approach aids in anticipating potential surgical challenges.

Conclusions:

A template-driven CT analysis provides a structured approach to pre-operative evaluation for ESS.
This method improves awareness of anatomical variations and potential surgical risks.
Enhanced pre-operative planning can lead to safer and more effective endoscopic sinus surgery.