A COMPARATIVE ASSESSMENT OF TRANSESOPHAGEAL AND TRANSTHORACIC ECHOCARDIOGRAPHY FOR ANALYSIS OF RIGHT VENTRICULAR DEFORMATION

Abstract

Objective: The transthoracic echocardiography (TTE) is the primary method to evaluate the right ventricular (RV) functions, but the assessment of the RV by TTE can be difficult due to the complex structural and anatomical position of the RV. The transesophageal echocardiography (TEE) is a good alternative to TTE when faced with difficulties in obtaining images. In this study, we investigated the agreement between TTE and TEE for the evaluation of the RV functions.

Material and Methods: This study was carried out on 78 patients between January 2017 and May 2017. The TTE and TEE records of the patients were compared by using Bland Altman analysis, and the mean difference and confidence interval between them were analyzed.

Results: Seventy-eight patients were involved in this study. The mean age of patients was 42 years, and 34% of the participants were female. In Bland Altman analysis, there was a moderate agreement between TTE and TEE in terms of mean difference of the E velocity, the A velocity, E’, A’. In contrast, there was a good agreement between TTE and TEE in terms of mean difference of RV strain, RV strain rate E, RV strain rate A, RV strain rate S which means that it could be appropriate to use them interchangeably.

Conclusion: The deformation parameters are essential for analyzing the RV functions, making a clinical decision, and estimating adverse events. The deformation parameters measured using TEE may yield information as accurate and useful as those measured using TTE, and they may be used interchangeably in making a clinical decision.

Keywords

• Transthoracic echocardiography
• Transesophageal echocardiography
• 2D strain-strain rate
• right ventricular

Sağ Ventriküler Deformasyon Analizi İçin Transözofageal ve Transtorasik Ekokardiyografinin Karşılaştırmalı Değerlendirmesi

Abstract

Amaç: Transtorasik ekokardiyografi (TTE), sağ ventrikülün (SV) boyut ve fonksiyonunu değerlendirmek için birincil yöntemdir, ancak SV’nin karmaşık yapısal ve anatomik konumu nedeniyle TTE ile değerlendirilmesi güç olabilir. Transözofageal ekokardiyografi (TÖE), görüntü elde etmede zorluklarla karşılaşıldığında TTE’ye iyi bir alternatif olarak tercih edilmektedir. Bu çalışmada, RV işlevlerinin değerlendirilmesi için TTE ve TÖE arasındaki uyumu araştırdık.

Gereç ve Yöntemler: Bu çalışma Ocak 2017 ile Mayıs 2017 arasında 78 hasta üzerinde gerçekleştirildi. Hastaların TTE ve TEE kayıtları Bland Altman analizi ile karşılaştırılarak aralarındaki ortalama farkları ve güven aralığı analiz edildi.

Bulgular: Bu çalışmaya 78 hasta katıldı. Hastaların ortalama yaşı 42 idi ve katılımcıların% 34'ü kadındı. Bland Altman analizinde, E dalga velositesi, A dalga velositesi, E’ ve A’ değerleri ortalama farkları açısından, TTE ve TÖE arasında orta düzeyde bir uyum vardı. Bunun tersine, TTE ve TÖE arasında SV gerinim, SV gerinim hızı E, SV gerinim hızı A, SV gerinim hızı S değerlerinin ortalama farkları açısından iyi bir anlaşma vardı. Bu da her iki yöntemin birbirinin yerine kullanılmasının uygun olabileceği anlamına geliyordu.

Sonuç: Deformasyon parametreleri, SV işlevlerini analiz etmek, klinik bir karar vermek ve istenmeyen olayları tahmin etmek için gereklidir. TÖE kullanılarak ölçülen deformasyon parametreleri, TTE kullanılarak ölçülen bilgiler kadar doğru ve faydalı bilgi verebilir ve bu iki yöntem klinik bir karar vermede birbirinin yerine kullanılabilir.

Keywords

• Transtorasik ekokardiyografi
• Transözofageal ekokardiyografi
• 2D strain-strain oranı
• sağ venrikül

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