C2 "target": composite shadow.
نویسندگان
چکیده
Cervical spine radiographs are crowded with superimposed bony and soft-tissue structures that make interpretation difficu lt. In addition, there are many anatomic and projectional variants that have been described [1-6] . Knowledge of them is essential to distinguish the normal from the pathologic. We illustrate another pseudolesion , the C2 "target, " and provide a radiologic description and anatomic explanation. The incidence of this finding in 100 consecutive lateral cervical spine radiographs is reported .
منابع مشابه
Legal aspects of Shadow Banking
Shadow Banking system, as an investment method, while being an integral part of the supervised banking system, is a rival for banks and governance institutions in financing and oversight. As a result, its development has created a situation for regulated institutions, which leads to concerns about the legal and regulatory responsibilities of the banking and financial system for investment not g...
متن کاملOptimum shadow-casting illumination for endoscopic task performance.
HYPOTHESES Task performance improves with the use of a balanced degree of shadow and illumination compared with no or maximum shadow contrast; and overhead shadow-casting illumination is better than side illumination. DESIGN The standard task entailed touching target points on an undulating surface by using a surgical hook. Each run consisted of 13 target points in a random sequence. Five set...
متن کاملTarget Recognition in SAR Images Based on Information-Decoupled Representation
Abstract: This paper proposes an automatic target recognition (ATR) method for synthetic aperture radar (SAR) images based on information-decoupled representation. A typical SAR image of a ground target can be divided into three parts: target region, shadow and background. From the aspect of SAR target recognition, the target region and shadow contain discriminative information. However, they a...
متن کاملAutomated Production of Cloud-free and Cloud Shadow-free Image Mosaics from Cloudy Satellite Imagery
The humid tropical region is always under partial or complete cloud covers. As a result, optical remote sensing images of this region always encounter the problem of cloud covers and associated shadows. In this paper, an operational system for producing cloud-free and cloud shadow-free image mosaics from cloudy optical satellite imagery is presented. The inputs are several cloudy images of the ...
متن کاملMoving-object Detection Based on Shadow Removal and Prospect Reconstruction
In the process of moving target detection, moving objects and their shadows are often extracted both. It leads to the failure of moving target positioning, segmentation, tracking and classification in the moving-object detection. Thus the shadow removal is an important task in the intelligent monitoring system. In the process of shadow removal, using color features to detect shadow is easy to c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- AJNR. American journal of neuroradiology
دوره 5 3 شماره
صفحات -
تاریخ انتشار 1984