‘How I do’ the Evaluation of Pericardial Disease Brian J. Schietinger MD and Christopher M. Kramer MD For scmr.org From the University of Virginia This.

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Presentation transcript:

‘How I do’ the Evaluation of Pericardial Disease Brian J. Schietinger MD and Christopher M. Kramer MD For scmr.org From the University of Virginia This presentation posted for members of scmr as an educational guide – it represents the views and practices of the author, and not necessarily those of SCMR.

1. Multi-Slice Localizers CoronalSagittalTransverse Pericardial disorders often distort normal cardiac anatomy. Therefore, obtaining classic views may require careful image planning. Note: Pericardial diseases have characteristic anatomical features, but the diagnosis remains a clinical and hemodynamic one.

2. SSFP Cine Pericardial Constriction Effusive Constrictive Pericarditis Pericardial Effusion Obtain steady state free precession (SSFP) cine images in two, three, and four chamber cardiac orientations. Above are four chamber SSFP cine views of representative pericardial disorders.

3. Stacked Axial SSFP Cine Stacked axial SSFP cines are useful to determine pericardial regions of interest and the extent of involvement.

4. T1W and T2W spin echo imaging: Pericardial Cysts T1W Spin EchoT2W Spin Echo Pericardial cysts (white arrows) often are located at the right diaphragmatic border and are characterized with T1 weighted and T2 weighted turbo spin echos (TSE). T1 weighted TSE sequences (Image 1) demonstrate hypointense (dark) signal in the pericardial cyst. T2 weighted TSE sequences (Image 2) demonstrate hyperintense (bright) signal in the pericardial cyst which contains proteinaceous fluid. 1 2

5. T1W TSE and fat suppressed gradient echo imaging: Constrictive pericarditis 1 2 Correctly identifying the pericardium requires that it be delineated from fat and fluid. To do so often is aided by acquiring both a T1 weighted TSE and a T1 weighted fat suppressed gradient echo (GRE) sequence. T1 weighted TSE sequences (Image 1) produce hyperintense (bright) epicardial and pericardial fat (yellow arrows), hypointense (dark) pericardium (white arrow), and, if present, hypointense (dark) pericardial fluid. No pericardial fluid is seen in this case. Note: Normal pericardium is ≤ 3mm thick. T1 weighted fat suppressed GRE sequence (Image 2) nulls signal from epicardial (yellow arrow) and pericardial fat. In contrast, the pericardium appears bright (white arrow).

Myocardial tagging is integral to the determination of pericardial adherence to the epicardium. Normal pericardium should slip over the epicardial surface. Note: Fluid and fat do not “hold” tags. Often a left ventricular short axis tagged cine in the atrioventricular groove can be very helpful for identifying the presence and extent of pericardial constriction. 6. GRE tagged imaging: Constrictive pericarditis Constrictive PericarditisEffusive Constrictive Pericarditis

Summary: Anatomy and Sequences T1-TSE T1-GRE w/ Fat sat SSFPT2-TSE Pericardium DarkGreyVariableDark Effusion DarkBright Fat BrightDarkBright Pericardial Cysts Dark VariableBright