
Transcranial doppler ultrasound: Incremental diagnostic role in cryptogenic stroke part II
Author(s) -
Antonello D’Andrea,
Marianna Conte,
Lucia Riegler,
Raffaella Scarafile,
Rosangela Cocchia,
Enrica Pezzullo,
Massimo Cavallaro,
Marco Di Maio,
Francesco Natale,
Giuseppe Santoro,
Maria Giovanna Russo,
Marino Scherillo,
Raffaele Calabrò
Publication year - 2016
Publication title -
journal of cardiovascular echography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.255
H-Index - 8
eISSN - 2347-193X
pISSN - 2211-4122
DOI - 10.4103/2211-4122.187947
Subject(s) - medicine , patent foramen ovale , transcranial doppler , paradoxical embolism , stroke (engine) , cardiology , radiology , ultrasound , ultrasonography , intracranial embolism , grading (engineering) , embolism , mechanical engineering , percutaneous , engineering , civil engineering
Transcranial Doppler (TCD) ultrasonography is a noninvasive ultrasound study, which has been extensively applied in both outpatient and inpatient settings. Its main use in current clinical practice is the research for "Paradoxical Embolism," due to migration of thromboembolic material from systemic venous circulation to the left cardiac chambers and arterial circulation through cardiopulmonary shunts such as patent foramen ovale which represents an important cause of cryptogenic stroke, especially in patients under 55 years of age. In this review, we shall describe the incremental diagnostic role in cryptogenic stroke for this imaging modality. TCD not only can be used to detect right-left cardiopulmonary shunts but it also allows to classify the grade of severity of such shunts using the so-called "Microembolic Signals grading score."