Azam Safir-Mardanloo1, Mani Khorsand Askari2, Masoumeh- Lotfi Tokaldany2, Mohammad Moein Ashrafi3, Hakimeh Sadeghian4. 1. Echocardiography Department, Tehran Heart Center, Tehran University of Medical Science, Tehran, Iran. 2. Research Department, Tehran Heart Center, Tehran University of Medical Science, Tehran, Iran. 3. Young Researchers and Elites Club, Faculty of Medicine, Yazd Branch, Islamic Azad University, Yazd, Iran. 4. Echocardiography Department, Dr Shariati Hospital, Tehran University of Medical Science, Tehran, Iran.
Abstract
OBJECTIVE: To determine normal values for tissue velocity imaging (TVI) and strain rate imaging (SRI) in the left atrium (LA) and right atrium (RA) in normal subjects. METHODS: A total of 63 healthy volunteers (50.8% male, age: 20-50 years) prospectively underwent TVI and SRI. The peak systolic velocity (TVs), strain (STs) and strain rate (SRs), peak early and late diastolic velocities (TVe and TVa), strain (STe and STa), and strain rate (SRe and SRa) were measured in the base and mid of the LA and RA walls and roofs. RESULTS: By TVI, TVs and TVe of LA walls decreased significantly from basal to mid-level and from mid to the roof. Mean Tva of LA walls reduced significantly from basal to mid-level and to the roof. By SRI, mean STs and STe of LA walls increased remarkably from basal to mid-level and to the roof and also mean SRs, SRe and SRa increased significantly from basal to mid-level and to the roof. For SRe, the changes were also significant from mid-LA wall to the roof. Mean Tvs, Tve, and Tva of the RA walls reduced significantly from base to mid and then to the RA roof. RA systolic, early, and late diastolic ST and SR increased from base to mid and to the roof. CONCLUSION: Peak systolic and diastolic velocities of the LA and RA decreased from the base to the mid and to the roof, while systolic and diastolic ST and SR increased from the base to the mid to the roof.
OBJECTIVE: To determine normal values for tissue velocity imaging (TVI) and strain rate imaging (SRI) in the left atrium (LA) and right atrium (RA) in normal subjects. METHODS: A total of 63 healthy volunteers (50.8% male, age: 20-50 years) prospectively underwent TVI and SRI. The peak systolic velocity (TVs), strain (STs) and strain rate (SRs), peak early and late diastolic velocities (TVe and TVa), strain (STe and STa), and strain rate (SRe and SRa) were measured in the base and mid of the LA and RA walls and roofs. RESULTS: By TVI, TVs and TVe of LA walls decreased significantly from basal to mid-level and from mid to the roof. Mean Tva of LA walls reduced significantly from basal to mid-level and to the roof. By SRI, mean STs and STe of LA walls increased remarkably from basal to mid-level and to the roof and also mean SRs, SRe and SRa increased significantly from basal to mid-level and to the roof. For SRe, the changes were also significant from mid-LA wall to the roof. Mean Tvs, Tve, and Tva of the RA walls reduced significantly from base to mid and then to the RA roof. RA systolic, early, and late diastolic ST and SR increased from base to mid and to the roof. CONCLUSION: Peak systolic and diastolic velocities of the LA and RA decreased from the base to the mid and to the roof, while systolic and diastolic ST and SR increased from the base to the mid to the roof.
Authors: Attila Nemes; Árpád Kormányos; Péter Domsik; Anita Kalapos; Nóra Ambrus; Csaba Lengyel; Tamás Forster Journal: Int J Cardiovasc Imaging Date: 2019-07-12 Impact factor: 2.357
Authors: Jani Pirinen; Vesa Järvinen; Nicolas Martinez-Majander; Juha Sinisalo; Pauli Pöyhönen; Jukka Putaala Journal: J Am Heart Assoc Date: 2020-03-25 Impact factor: 5.501