scholarly journals Myocardial perfusion scintigraphy in the diagnostics of takotsubo syndrome

Author(s):  
A. I. Abdrakhmanova ◽  
G. B. Saifullina ◽  
N. B. Amirov

We analyzed the publications about single-photon emission computed tomography in the diagnostics of takotsubo syndrome; the dynamics of testing data are presented on a clinical example. Single-photon emission computed tomography can be used to evaluate perfusion parameters for exclusion of myocardial infarction in uncertain cases. In segments with impaired contractile function, it is possible to detect normal or reduced perfusion. During the acute phase there is a reduced accumulation of radiopharmaceuticals in myocardial segments with impaired function, which coincides with the regional distribution of neuronal activity. Pathological changes may persist for several months, and use of scintigraphy with a radiopharmaceutical may help in cases when the diagnosis was not well-timed established. The method of myocardial scintigraphy in ECG-synchronized tomography allows to simultaneously assess the perfusion and the function of the left ventricle and differentiate such disorder as takotsubo syndrome.

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
A Aimo ◽  
C Grigoratos ◽  
C Rapezzi ◽  
D Genovesi ◽  
A Barison ◽  
...  

Abstract Background Planar diphosphonate scintigraphy is an established diagnostic tool for amyloid transthyretin (ATTR) cardiomyopathy. Characterization of the amyloid burden up to the segmental level by single photon emission computed tomography (SPECT) has not been evaluated so far. Methods Data from consecutive patients undergoing cardiac 99mTc-hydroxymethylene diphosphonate (99mTc-HMDP) SPECT and diagnosed with ATTR cardiomyopathy at a tertiary referral center from June 2016 to April 2019 were collected. Results Thirty-eight patients were included (median age 81 years, 79% men, 92% with wild-type ATTR). In patients with Perugini score 1, the most intense diphosphonate regional uptake was found in septal segments, particularly in infero-septal segments. Among patients scoring 2, the amyloid burden in the septum became more significant, and extended to inferior and apical segments. Finally, patients scoring 3 displayed an intense and widespread tracer uptake. All patients with Perugini score 1 had LGE in at least one antero-septal, one infero-septal, and one infero-lateral segment. All patients with score 2 displayed LGE in infero-septal, inferior, and infero-lateral segments. LGE became extensive in patients scoring 3, with all patients having at least one LGE-positive segment in each region. Conclusions When assimilating different Perugini grades to evolutive stages of the disease, amyloid deposition seem to progress from the septum to the inferior wall and then to the other regions and from the basis to the apex. The potential of segmental analysis might be particularly relevant in patients with very limited cardiac uptake at planar scintigraphy (Perugini score 1). Funding Acknowledgement Type of funding source: None


Seizure ◽  
2004 ◽  
Vol 13 (4) ◽  
pp. 250-253 ◽  
Author(s):  
KYOUNG HEO ◽  
YANG JE CHO ◽  
SEUNG-KOO LEE ◽  
SUN AH PARK ◽  
KYU-SIK KIM ◽  
...  

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