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Cardiac Magnetic Resonance Imaging at 7 Tesla
Published on: January 6, 2019
Magnetic resonance imaging characteristics of cardiac hydatid cyst
Ravza Yılmaz1, Yunus Emre Akpınar1, Zuhal Bayramoglu1
1Istanbul University, Istanbul Medical Faculty, Radiology Department, Capa, Fatih, Istanbul TR 34098, Turkey.
Insights
Magnetic resonance imaging (MRI) effectively identifies cardiac hydatid disease by revealing cyst structures. Peripheral enhancement on late-contrast enhanced MRI is a key diagnostic indicator for these parasitic cysts.
Area of Science:
- Radiology
- Cardiology
- Parasitology
Background:
- Cardiac hydatid disease is a rare parasitic infection caused by Echinococcus tapeworms.
- Diagnosis can be challenging, often requiring advanced imaging techniques.
Purpose of the Study:
- To describe the magnetic resonance imaging (MRI) features of cardiac hydatid disease.
- To highlight specific MRI findings crucial for diagnosing hydatid cysts in the heart.
Main Methods:
- Retrospective review of cardiac MRI records from 2015-2017.
- Analysis of 7 patients with histologically confirmed cardiac hydatid disease.
- Utilized 1.5 Tesla MRI with ECG gating for imaging.
Main Results:
- Signal characteristics of cysts varied on T1-weighted and T2-weighted images.
- No early contrast enhancement was observed in any lesions.
- Consistent peripheral contrast enhancement was noted in the late contrast-enhanced series for all lesions.
Conclusions:
- MRI accurately determines the anatomic location and nature of cardiac hydatid cysts.
- Peripheral enhancement in non-enhancing lesions is a highly valuable diagnostic sign for cardiac hydatid disease on MRI.
Purpose:
The purpose of this article is to describe the magnetic resonance imaging (MRI) features of cardiac hydatid disease and show the specific findings in the diagnosis of hydatic cysts.
Materials And Methods:
A retrospective review of cardiac MRI records between 2015 and 2017, 7 patients (3 males, 4 females; age range: 14-74) were identified with the histologic diagnosis of cardiac hydatid disease. Cardiac MRI examinations were performed in order to investigate the cardiac cystic-solid lesion obtained via previous echocardiography (ECG) and thorax computed tomography. 1.5 Tesla magnetic field power generation capacity was used and the images were acquired with ECG trigger.
Results:
There is variation in signal characteristics of cysts on T1-weighted and T2-weighted images. Early contrast enhancement was not observed in the any of lesions on contrast-enhanced series. In all lesions examined, peripheral contrast enhancement was observed in the late contrast enhanced series, independent from the internal structure and signal intensity.
Conclusions:
MRI reveals the exact anatomic location and nature of the cyst structures. Peripheral enhancement of non-enhancing lesion is very valuable for diagnosis of cardiac hydatids on MRI.
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