D.A. Christopher

1.7k total citations · 1 hit paper
13 papers, 1.3k citations indexed

About

D.A. Christopher is a scholar working on Radiology, Nuclear Medicine and Imaging, Biomedical Engineering and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, D.A. Christopher has authored 13 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Radiology, Nuclear Medicine and Imaging, 9 papers in Biomedical Engineering and 6 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in D.A. Christopher's work include Ultrasound Imaging and Elastography (9 papers), Ultrasound and Hyperthermia Applications (7 papers) and Cardiovascular Health and Disease Prevention (5 papers). D.A. Christopher is often cited by papers focused on Ultrasound Imaging and Elastography (9 papers), Ultrasound and Hyperthermia Applications (7 papers) and Cardiovascular Health and Disease Prevention (5 papers). D.A. Christopher collaborates with scholars based in Canada, United States and Netherlands. D.A. Christopher's co-authors include F. Stuart Foster, Daniel H. Turnbull, Charles J. Pavlin, Kasia Harasiewicz, Peter N. Burns, G.R. Lockwood, Paul A. Picot, Aaron Fenster, Daniel W. Rickey and Robert S. Kerbel and has published in prestigious journals such as The Journal of the Acoustical Society of America, Ultrasound in Medicine & Biology and IEEE Engineering in Medicine and Biology Magazine.

In The Last Decade

D.A. Christopher

12 papers receiving 1.3k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Advances in ultrasound biomicroscopy

2000 541 citations F. Stuart Foster, Charles J. Pavlin et al. Ultrasound in Medicine & Biology profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
D.A. Christopher Canada	9	892	741	212	153	113	13	1.3k
Christopher S. Hall United States	24	814 0.9×	660 0.9×	179 0.8×	206 1.3×	149 1.3×	54	1.6k
Linda Ryan Canada	13	543 0.6×	504 0.7×	179 0.8×	76 0.5×	216 1.9×	20	979
Jeffrey A. Ketterling United States	20	949 1.1×	872 1.2×	254 1.2×	102 0.7×	52 0.5×	124	1.5k
F.L. Lizzi United States	23	1.2k 1.4×	1.3k 1.7×	400 1.9×	84 0.5×	144 1.3×	77	2.1k
Frederic L. Lizzi United States	26	1.5k 1.7×	1.6k 2.2×	458 2.2×	111 0.7×	139 1.2×	63	2.5k
Jahangir Tavakkoli Canada	20	911 1.0×	597 0.8×	213 1.0×	93 0.6×	64 0.6×	88	1.3k
K. Kirk Shung United States	16	521 0.6×	439 0.6×	172 0.8×	58 0.4×	105 0.9×	39	897
Emmanuel Chérin Canada	24	1.6k 1.8×	1.1k 1.5×	227 1.1×	130 0.8×	190 1.7×	79	2.0k
Punit Prakash United States	25	1.4k 1.6×	486 0.7×	128 0.6×	83 0.5×	239 2.1×	130	2.0k
Jean Martial Mari Singapore	31	765 0.9×	1.7k 2.3×	153 0.7×	141 0.9×	185 1.6×	105	2.5k

Countries citing papers authored by D.A. Christopher

Since Specialization

Citations

This map shows the geographic impact of D.A. Christopher'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 D.A. Christopher with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites D.A. Christopher more than expected).

Fields of papers citing papers by D.A. Christopher

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by D.A. Christopher. 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 D.A. Christopher. The network helps show where D.A. Christopher may publish in the future.

Co-authorship network of co-authors of D.A. Christopher

This figure shows the co-authorship network connecting the top 25 collaborators of D.A. Christopher. A scholar is included among the top collaborators of D.A. Christopher 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 D.A. Christopher. D.A. Christopher is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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13 of 13 papers shown

Christopher, D.A., Peter N. Burns, Johanna Armstrong, & F. Stuart Foster. (2002). A high frequency continuous-wave Doppler ultrasound system for detection of blood flow in the microcirculation. 2. 1493–1496. 3 indexed citations

Aristizábal, Orlando, et al.. (2002). Measuring blood flow in the mouse embryo. 2. 1489–1492.

Christopher, D.A., B.G. Starkoski, Peter N. Burns, & F. Stuart Foster. (2002). A high frequency pulsed-wave Doppler ultrasound system for detecting and imaging blood flow in the microcirculation. 2. 1477–1480. 2 indexed citations

Goertz, David E., et al.. (2002). High frequency color flow imaging of the microcirculation. 2. 1525–1528. 8 indexed citations

Foster, F. Stuart, Charles J. Pavlin, Kasia Harasiewicz, D.A. Christopher, & Daniel H. Turnbull. (2000). Advances in ultrasound biomicroscopy. Ultrasound in Medicine & Biology. 26(1). 1–27. 541 indexed citations breakdown →

Goertz, David E., D.A. Christopher, Joanne Yu, et al.. (2000). High-frequency color flow imaging of the microcirculation. Ultrasound in Medicine & Biology. 26(1). 63–71. 124 indexed citations

Jones, Dennis F. & D.A. Christopher. (1999). A broadband omnidirectional barrel-stave flextensional transducer. The Journal of the Acoustical Society of America. 106(2). L13–L17. 12 indexed citations

Aristizábal, Orlando, D.A. Christopher, F. Stuart Foster, & Daniel H. Turnbull. (1998). 40-MHz echocardiography scanner for cardiovascular assessment of mouse embryos. Ultrasound in Medicine & Biology. 24(9). 1407–1417. 64 indexed citations

Christopher, D.A., Peter N. Burns, B.G. Starkoski, & F. Stuart Foster. (1997). A high-frequency pulsed-wave Doppler ultrasound system for the detection and imaging of blood flow in the microcirculation. Ultrasound in Medicine & Biology. 23(7). 997–1015. 74 indexed citations

10.

Christopher, D.A., et al.. (1996). A high-frequency continuous-wave Doppler ultrasound system for the detection of blood flow in the microcirculation. Ultrasound in Medicine & Biology. 22(9). 1191–1203. 48 indexed citations

11.

Lockwood, G.R., et al.. (1996). Beyond 30 MHz [applications of high-frequency ultrasound imaging]. IEEE Engineering in Medicine and Biology Magazine. 15(6). 60–71. 224 indexed citations

12.

Christopher, D.A., Peter N. Burns, J.W. Hunt, & F. Stuart Foster. (1995). The effect of refraction and assumed speeds of sound in tissue and blood on doppler ultrasound blood velocity measurements. Ultrasound in Medicine & Biology. 21(2). 187–201. 27 indexed citations

13.

Rickey, Daniel W., Paul A. Picot, D.A. Christopher, & Aaron Fenster. (1995). A wall-less vessel phantom for Doppler ultrasound studies. Ultrasound in Medicine & Biology. 21(9). 1163–1176. 187 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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