Berthold Klas

1.2k total citations
35 papers, 891 citations indexed

About

Berthold Klas is a scholar working on Cardiology and Cardiovascular Medicine, Epidemiology and Surgery. According to data from OpenAlex, Berthold Klas has authored 35 papers receiving a total of 891 indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Cardiology and Cardiovascular Medicine, 22 papers in Epidemiology and 11 papers in Surgery. Recurrent topics in Berthold Klas's work include Congenital Heart Disease Studies (21 papers), Cardiovascular Function and Risk Factors (20 papers) and Cardiac Valve Diseases and Treatments (7 papers). Berthold Klas is often cited by papers focused on Congenital Heart Disease Studies (21 papers), Cardiovascular Function and Risk Factors (20 papers) and Cardiac Valve Diseases and Treatments (7 papers). Berthold Klas collaborates with scholars based in United States, Japan and Italy. Berthold Klas's co-authors include Greggory R. DeVore, Mark Sklansky, Gary Satou, Shuping Ge, Nancy A. Ayres, Xiuzhang Lu, Vyacheslav Nadvoretskiy, Victor Mor‐Avi, Roberto M. Lang and Lynn Weinert and has published in prestigious journals such as Circulation, Journal of the American College of Cardiology and American Heart Journal.

In The Last Decade

Berthold Klas

34 papers receiving 857 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Berthold Klas United States	17	663	514	231	219	168	35	891
Aarti Bhat United States	12	345 0.5×	315 0.6×	175 0.8×	149 0.7×	130 0.8×	34	570
Brian Sinclair United States	10	247 0.4×	170 0.3×	112 0.5×	115 0.5×	125 0.7×	22	447
Sarah Scagnelli United States	7	259 0.4×	317 0.6×	88 0.4×	111 0.5×	101 0.6×	9	461
Sandra L. Hagen-Ansert United States	8	136 0.2×	253 0.5×	129 0.6×	119 0.5×	149 0.9×	18	446
Megan Yamat United States	17	756 1.1×	243 0.5×	218 0.9×	262 1.2×	130 0.8×	34	837
Christine B. Falkensammer United States	8	159 0.2×	335 0.7×	139 0.6×	32 0.1×	130 0.8×	21	506
Ellen M. Weinstein United States	9	425 0.6×	336 0.7×	135 0.6×	54 0.2×	187 1.1×	15	601
Aura A. Sanchez United States	7	292 0.4×	171 0.3×	130 0.6×	81 0.4×	91 0.5×	9	404
Karen Altmann United States	15	607 0.9×	708 1.4×	435 1.9×	115 0.5×	418 2.5×	29	1.0k
Zdenka Reinhardt United Kingdom	13	251 0.4×	440 0.9×	245 1.1×	100 0.5×	287 1.7×	30	688

Countries citing papers authored by Berthold Klas

Since Specialization

Citations

This map shows the geographic impact of Berthold Klas's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Berthold Klas with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Berthold Klas more than expected).

Fields of papers citing papers by Berthold Klas

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Berthold Klas. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Berthold Klas. The network helps show where Berthold Klas may publish in the future.

Co-authorship network of co-authors of Berthold Klas

This figure shows the co-authorship network connecting the top 25 collaborators of Berthold Klas. A scholar is included among the top collaborators of Berthold Klas based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Berthold Klas. Berthold Klas is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

DeVore, Greggory R., Berthold Klas, Gary Satou, & Mark Sklansky. (2025). Ventricular Free Wall and Septal Wall Displacement of the Fetal Heart. Journal of Ultrasound in Medicine. 44(7). 1185–1200.

DeVore, Greggory R., Berthold Klas, Bettina F. Cuneo, Gary Satou, & Mark Sklansky. (2024). Review of speckle tracking analysis to measure the size, shape, and contractility of the fetal heart in fetuses with congenital heart defects. Echocardiography. 41(7). e15870–e15870. 5 indexed citations

Churchill, Jessica L., Phinnara Has, Berthold Klas, et al.. (2024). Evaluating left atrial strain and left ventricular diastolic strain rate as markers for diastolic dysfunction in patients with mitral annular calcification. The International Journal of Cardiovascular Imaging. 40(4). 733–743. 1 indexed citations

DeVore, Greggory R., Berthold Klas, Gary Satou, & Mark Sklansky. (2022). Measuring the Area of the Interventricular Septum in the 4‐Chamber View: A New Technique to Evaluate the Fetus at Risk for Septal Hypertrophy. Journal of Ultrasound in Medicine. 41(12). 2939–2953. 1 indexed citations

DeVore, Greggory R., Berthold Klas, Gary Satou, & Mark Sklansky. (2021). Speckle Tracking Analysis to Evaluate the Size, Shape, and Function of the Atrial Chambers in Normal Fetuses at 20–40 Weeks of Gestation. Journal of Ultrasound in Medicine. 41(8). 2041–2057. 7 indexed citations

DeVore, Greggory R., Berthold Klas, Gary Satou, & Mark Sklansky. (2018). Quantitative evaluation of fetal right and left ventricular fractional area change using speckle‐tracking technology. Ultrasound in Obstetrics and Gynecology. 53(2). 219–228. 38 indexed citations

DeVore, Greggory R., Berthold Klas, Gary Satou, & Mark Sklansky. (2018). Evaluation of Fetal Left Ventricular Size and Function Using Speckle‐Tracking and the Simpson Rule. Journal of Ultrasound in Medicine. 38(5). 1209–1221. 40 indexed citations

Uppu, Santosh C., John T. Doucette, Irene D. Lytrivi, et al.. (2018). Abnormalities in Left Ventricular Rotation Are Inherent in Young Children with Repaired Tetralogy of Fallot and Are Independent of Right Ventricular Dilation. Pediatric Cardiology. 39(6). 1172–1180. 4 indexed citations

DeVore, Greggory R., Berthold Klas, Gary Satou, & Mark Sklansky. (2017). 24‐segment sphericity index: a new technique to evaluate fetal cardiac diastolic shape. Ultrasound in Obstetrics and Gynecology. 51(5). 650–658. 68 indexed citations

10.

DeVore, Greggory R., Berthold Klas, Gary Satou, & Mark Sklansky. (2017). Evaluation of the right and left ventricles: An integrated approach measuring the area, length, and width of the chambers in normal fetuses. Prenatal Diagnosis. 37(12). 1203–1212. 33 indexed citations

11.

DeVore, Greggory R., Berthold Klas, Gary Satou, & Mark Sklansky. (2017). Twenty‐four Segment Transverse Ventricular Fractional Shortening: A New Technique to Evaluate Fetal Cardiac Function. Journal of Ultrasound in Medicine. 37(5). 1129–1141. 44 indexed citations

12.

DeVore, Greggory R., Berthold Klas, Gary Satou, & Mark Sklansky. (2017). Longitudinal Annular Systolic Displacement Compared to Global Strain in Normal Fetal Hearts and Those With Cardiac Abnormalities. Journal of Ultrasound in Medicine. 37(5). 1159–1171. 44 indexed citations

13.

DeVore, Greggory R., Berthold Klas, Gary Satou, & Mark Sklansky. (2017). OP02.02: 24‐segment transverse ventricular fractional shortening: a new technique to evaluate fetal cardiac function. Ultrasound in Obstetrics and Gynecology. 50(S1). 51–52. 1 indexed citations

14.

Toro-Salazar, Olga, Wojciech Mazur, Subha V. Raman, et al.. (2015). Feasibility of Echocardiographic Techniques to Detect Subclinical Cancer Therapeutics–Related Cardiac Dysfunction among High-Dose Patients When Compared with Cardiac Magnetic Resonance Imaging. Journal of the American Society of Echocardiography. 29(2). 119–131. 32 indexed citations

15.

Zhang, Li, Jun Gao, Mingxing Xie, et al.. (2013). Left Ventricular Three-Dimensional Global Systolic Strain by Real-Time Three-Dimensional Speckle-Tracking in Children: Feasibility, Reproducibility, Maturational Changes, and Normal Ranges. Journal of the American Society of Echocardiography. 26(8). 853–859. 44 indexed citations

16.

Yodwut, Chattanong, Lynn Weinert, Berthold Klas, Roberto M. Lang, & Victor Mor‐Avi. (2012). Effects of Frame Rate on Three-Dimensional Speckle-Tracking–Based Measurements of Myocardial Deformation. Journal of the American Society of Echocardiography. 25(9). 978–985. 75 indexed citations

17.

Zhang, Li, Jun Gao, Mingxing Xie, et al.. (2011). Abstract 10777: Three-Dimensional Global Longitudinal Strain Analysis of Left Ventricle by Real-time 3-D Speckle Tracking Imaging in Pediatric Population: Feasibility, Reproducibility, Maturational Changes, and Normal Ranges. Circulation. 124. 1 indexed citations

18.

Lu, Xiuzhang, Vyacheslav Nadvoretskiy, Berthold Klas, et al.. (2007). Measurement of Volumetric Flow by Real-time 3-Dimensional Doppler Echocardiography in Children. Journal of the American Society of Echocardiography. 20(8). 915–920. 12 indexed citations

19.

Gill, Edward A. & Berthold Klas. (2007). Three-Dimensional Echocardiography: An Historical Perspective. Cardiology Clinics. 25(2). 221–229. 8 indexed citations

20.

Nanda, Navin C., et al.. (1994). Quantitative Assessment of Normal and Stenotic Aortic Valve Using Transesophageal Three‐Dimensional Echocardiography. Echocardiography. 11(6). 617–625. 46 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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