Occult Intrasacral Meningocele: Clinical and Radiographic Diagnosis

Neurosurgery ◽  
1989 ◽  
Vol 24 (4) ◽  
pp. 616-625 ◽  
Author(s):  
James R. Doty ◽  
Jeffrey Thomson ◽  
Gary Simonds ◽  
Setti S. Rengachary ◽  
E. Neal Gunby

ABSTRACT We evaluated four patients who had occult intrasacral meningocele with multimodality radiographic imaging techniques. The clinical features, radiological findings, gross appearances of the lesion at surgery, surgical technique, histopathological features of the cyst wall, and surgical outcome are described. The role of magnetic resonance imaging in the preoperative evaluation compared with standard radiographic techniques is discussed. Theories regarding the pathogenesis of this lesion are reviewed.

Neurosurgery ◽  
2016 ◽  
Vol 79 (5) ◽  
pp. 626-642 ◽  
Author(s):  
Lubdha M. Shah ◽  
Jeffrey S. Ross

Abstract Imaging with computed tomography and magnetic resonance imaging is fundamental to the evaluation of traumatic spinal injury. Specifically, neuroradiologic techniques show the exact location of injury, evaluate the stability of the spine, and determine neural element compromise. This review focuses on the complementary role of different radiologic modalities in the diagnosis of patients with traumatic injuries of the spine. The role of imaging in spinal trauma classifications will be addressed. The importance of magnetic resonance imaging in the assessment of soft tissue injury, particularly of the spinal cord, will be discussed. Last, the increasing role of advanced imaging techniques for prognostication of the traumatic spine will be explored.


Author(s):  
Tjeerd Germans ◽  
Massimo Lombardi ◽  
Danilo Neglia ◽  
Petros Nihoyannopoulos ◽  
Albert C. van Rossum

Dilated cardiomyopathies either familial/genetic or non-familial/non-genetic in origin are characterized by dilatation of one or both ventricles and systolic dysfunction. The modern imaging techniques allow assessment of the primary myocardial defect as abnormalities in the structural, mechanical, metabolic, and perfusion patterns. The diagnostic and the prognostic role of the three most used imaging modalities (echocardiography, nuclear technologies, and cardiac magnetic resonance imaging) are discussed with the purpose of integrating the specific cardiac characteristics provided by each of them.


2000 ◽  
Vol 28 (3) ◽  
pp. 414-434 ◽  
Author(s):  
Timothy G. Sanders ◽  
William B. Morrison ◽  
Mark D. Miller

The ability to image lesions associated with glenohumeral instability has evolved significantly over the past 2 decades. In the past, several imaging techniques ranging from conventional radiography to computerized axial arthrography and, most recently, to magnetic resonance imaging have been used to depict various labral abnormalities. In most instances, conventional radiography remains the initial imaging study for evaluating the patient with persistent shoulder pain and instability. Recently, however, magnetic resonance arthrography has been firmly established as the imaging modality of choice for demonstrating specific soft tissue abnormalities associated with glenohumeral instability. This article will review the role of various imaging modalities including conventional radiography, conventional arthrography, computerized axial arthrography, magnetic resonance imaging, and magnetic resonance arthrography. Emphasis will be placed on the role of magnetic resonance arthrography as it pertains to the lesions associated with glenohumeral instability. A thorough discussion of the appearance of normal anatomic structures, anatomic variations that mimic abnormality, and the various lesions associated with glenohumeral instability will be provided.


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