Bio

Academic Appointments


Publications

Journal Articles


  • Outcomes from a Postgraduate Biomedical Technology Innovation Training Program: The First 12 Years of Stanford Biodesign ANNALS OF BIOMEDICAL ENGINEERING Brinton, T. J., Kurihara, C. Q., Camarillo, D. B., Pietzsch, J. B., Gorodsky, J., Zenios, S. A., Doshi, R., Shen, C., Kumar, U. N., Mairal, A., Watkins, J., Popp, R. L., Wang, P. J., Makower, J., Krummel, T. M., Yock, P. G. 2013; 41 (9): 1803-1810

    Abstract

    The Stanford Biodesign Program began in 2001 with a mission of helping to train leaders in biomedical technology innovation. A key feature of the program is a full-time postgraduate fellowship where multidisciplinary teams undergo a process of sourcing clinical needs, inventing solutions and planning for implementation of a business strategy. The program places a priority on needs identification, a formal process of selecting, researching and characterizing needs before beginning the process of inventing. Fellows and students from the program have gone on to careers that emphasize technology innovation across industry and academia. Biodesign trainees have started 26 companies within the program that have raised over $200 million and led to the creation of over 500 new jobs. More importantly, although most of these technologies are still at a very early stage, several projects have received regulatory approval and so far more than 150,000 patients have been treated by technologies invented by our trainees. This paper reviews the initial outcomes of the program and discusses lessons learned and future directions in terms of training priorities.

    View details for DOI 10.1007/s10439-013-0761-2

    View details for Web of Science ID 000323736800002

    View details for PubMedID 23404074

  • Troponin Messenger or Actor? JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY Popp, R. L. 2013; 61 (6): 611-614

    Abstract

    Cardiac troponin (cTn) is a biomarker of myocardial damage. New generations of high-sensitivity assays find circulating cTn in virtually all subjects. Multiple studies in various populations and patient groups have found higher levels of cTn to be predictive of future heart failure. The author proposes that initial myocardial damage from various mechanisms may lead to anti-cTn antibodies that participate in ongoing myocardial damage that eventually results in heart failure.

    View details for DOI 10.1016/j.jacc.2012.11.024

    View details for Web of Science ID 000314660700003

    View details for PubMedID 23391193

  • Reply to Letter to Editor by Peng, et. al. Journal of the American College of Cardiology Popp, R. L. 2013

    View details for PubMedID 23542108

  • Assessment of left ventricular function by echocardiography: A technique in evolution JOURNAL OF THE AMERICAN SOCIETY OF ECHOCARDIOGRAPHY Picard, M. H., Popp, R. L., Weyman, A. E. 2008; 21 (1): 14-21

    Abstract

    One of the earliest applications of clinical echocardiography was the evaluation of left ventricular (LV) size and function. The accuracy of the determination of global and regional LV function with echocardiography has improved as the technology has matured. The following paper discusses the advances in LV function assessment starting with Inge Edler's original A-mode and M-mode observation moving through two dimensional echocardiographic methods to new three dimensional echocardiographic assessment and even new Doppler and speckle myocardial methods. During the evolution of ultrasonic assessment of LV function, each new method has overcome limitations of previous ones, resulting in better appreciation of the LV geometry and volume and improved accuracy and reproducibility for quantitation. As discussed in this report, many of the echocardiographic methods used today to assess LV systolic function were envisioned by Harvey Feigenbaum more than 25 years ago. The future will undoubtedly see a new method of clinical cardiology care but with continued evolution, echocardiographic quantitation of LV function should remain a vital part of patient care.

    View details for DOI 10.1016/j.echo.2007.11.007

    View details for Web of Science ID 000252359000004

    View details for PubMedID 18165124

  • Comparison of three-dimensional echocardiography to two-dimensional echocardiography and fluoroscopy for monitoring of endomyocardial biopsy AMERICAN JOURNAL OF CARDIOLOGY Amitai, M. E., Schnittger, I., Popp, R. L., Chow, J., Brown, P., Liang, D. H. 2007; 99 (6): 864-866

    Abstract

    Real-time 3-dimensional echocardiography (RT3DE) offers the rapid acquisition of quantitative and qualitative anatomic data without the use of geometric assumptions. This study was designed to test the feasibility and potential superiority of RT3DE versus 2-dimensional echocardiography (2DE) and standard fluoroscopy for monitoring endomyocardial biopsies (EMBs). Thirty-eight consecutive EMBs performed under fluoroscopic guidance in 26 patients were monitored using 2DE and RT3DE alternately. Two reviewers scored each biopsy pass for visualization of the tip of the bioptome and location of the actual biopsy. Overall image quality was noted as good or poor, and the effect of image quality on tip localization was analyzed. A total of 243 biopsy attempts were made during 38 EMBs. The location of the biopsy was determined in 74% of the biopsies monitored with RT3DE, whereas 2DE demonstrated the location with certainty in only 43% of the biopsies (p <0.0001). On a procedure-by-procedure comparison, RT3DE was found to show the bioptome tip better in 23 of 38 biopsies, compared with 1 of 38 for 2DE (p = 0.001). In 14 of 38 EMBs, neither method was clearly better. In conclusion, RT3DE improves the ability to see the location of the bioptome during EMB compared with 2DE and fluoroscopy.

    View details for DOI 10.1016/j.amjcard.2006.10.050

    View details for Web of Science ID 000245289200027

    View details for PubMedID 17350384

  • An outline for public registration of clinical trials evaluating medical devices JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY Popp, R. L., Lorell, B. H., Stone, G. W., Laskey, W., Smith, J. J., Kaplan, A. V. 2006; 47 (8): 1518-1521

    Abstract

    Public registration of clinical trials is fundamentally important to the integrity of the medical device development process. In addition to fulfilling obligations to those study volunteers, a complete record of trial results provides the general public, clinical community, and medical device manufacturers with a more accurate understanding as to how a specific therapeutic should be used. Although the issues associated with public disclosure of clinical trials are similar to the pharmaceutical industries, the iterative nature of device development introduces differences in what type of information needs to be disclosed during development and commercialization. The Second Dartmouth Device Development Symposium (3D2) held in October 2004 brought together thought leaders representing many of the stakeholders associated with medical device development. This consensus document arising from the proceedings of the 3D2 is offered to provide background to these issues and recommend pathways to implementation of device trial registration.

    View details for DOI 10.1016/j.jacc.2005.09.079

    View details for Web of Science ID 000236819000002

    View details for PubMedID 16630985

  • Innovation, journal reviewers, and journal editors - The game is worth the candle JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY Popp, R. L. 2005; 46 (7): 1360-1361

    View details for DOI 10.1016/j.jacc.2005.04.001

    View details for Web of Science ID 000232315900024

    View details for PubMedID 16198856

  • Conflict of interest for the physician-inventor using a device in human subjects AMERICAN HEART JOURNAL Popp, R. L. 2005; 149 (1): 1-3

    View details for DOI 10.1016/j.ahj.2004.06.005

    View details for Web of Science ID 000226387000001

    View details for PubMedID 15660027

  • The role of the American College of Cardiology in promoting and maintaining the delivery of quality cardiovascular care in the future JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY Klocke, F. J., Douglas, P. S., Nissen, S. E., Popp, R. L. 2000; 35 (5): 99B-101B

    View details for Web of Science ID 000086316700019

    View details for PubMedID 10757375

  • The role of the American College of Cardiology in promoting and maintaining the delivery of quality cardiovascular care in the future JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY Klocke, F. J., Douglas, P. S., Nissen, S. E., Popp, R. L. 2000; 35 (4): 1100-1102

    View details for Web of Science ID 000085917200035

    View details for PubMedID 10732914

  • Stress echocardiography results in context EUROPEAN HEART JOURNAL Popp, R. L. 1999; 20 (20): 1450-1451

    View details for Web of Science ID 000082752800006

    View details for PubMedID 10610323

  • President's page: A time for celebration JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY Popp, R. L. 1998; 31 (4): 890-891
  • President's page: Looking back ... looking forward JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY Popp, R. L. 1998; 31 (2): 483-484
  • President's page: ACC's strategic plan - A road map for the future JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY Popp, R. L. 1998; 31 (1): 238-239
  • President's page: First, do no harm JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY Popp, R. L. 1997; 29 (6): 1405-1406
  • A three-dimensional perspective EUROPEAN HEART JOURNAL Popp, R. L. 1996; 17 (10): 1456-1458

    View details for Web of Science ID A1996VL04100003

    View details for PubMedID 8909895

  • Coronary artery intimal thickening in the transplanted heart - An in vivo intracoronary ultrasound study of immunologic and metabolic risk factors TRANSPLANTATION Rickenbacher, P. R., Kemna, M. S., Pinto, F. J., Hunt, S. A., Alderman, E. L., Schroeder, J. S., Stinson, E. B., Popp, R. L., Chen, I., Reaven, G., Valantine, H. A. 1996; 61 (1): 46-53

    Abstract

    This study examined the hypothesis that immunologic factors are the major correlates of coronary artery intimal thickening and luminal stenosis. The study population included 116 adult heart transplant recipients with a mean age of 44.7 +/- 12.0 years (89 men and 27 women) undergoing annual coronary angiography and intracoronary ultrasound 3.4 +/- 2.7 (range, 1.0-14.6) years after transplantation. Mean intimal thickness was obtained from several distinct sites along the left anterior descending and/or left circumflex coronary artery by intracoronary ultrasound. Coronary artery stenosis defined by angiography was classified as mild (< 30% luminal stenosis), moderate (> or = 30-70% luminal stenosis), or severe (> 70% luminal stenosis or diffuse pruning of distal vessels). Prevalence of any transplant coronary artery disease (TxCAD) was 85% by intracoronary ultrasound and 15% by angiography. By multiple regression analysis, only average fasting plasma triglyceride level (P < 0.006) and average weight (P < 0.007) were significantly correlated with severity of intimal thickening (R = 0.54, P < 0.0001). Donor age (P < 0.006) and average fasting plasma triglyceride level (P < 0.009) were significantly correlated with stenosis by angiography. Correlation of multiple immunologic and metabolic factors with intimal thickness by univariate analysis suggests a multifactorial etiology for TxCAD. Among the multiple univariate correlates of TxCAD, higher fasting plasma triglyceride levels and body weight are the only independent correlates of TxCAD. The absence of acute rejection as an independent predictor of intimal thickening suggests that mechanisms beyond those mediating typical cellular rejection should be targeted for advancing our understanding of Tx-CAD.

    View details for Web of Science ID A1996TQ20100011

    View details for PubMedID 8560573

  • TASK-FORCE-2 - ACADEMIC HEALTH CENTERS JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY King, S. B., Frye, R. L., Fuster, V., Garson, A., Gay, W. A., Popp, R. L. 1994; 24 (2): 290-295

    View details for Web of Science ID A1994PH37600003

    View details for PubMedID 8034860

  • TISSUE SIGNATURE - DISCUSSION-V AMERICAN JOURNAL OF CARDIOLOGY Feigenbaum, H., Kaul, S., Perez, J., Popp, R., SKORTON, D., Meltzer, R., Nanda, N., Gardin, J., Geiser, E. 1992; 69 (20): H117-H120
  • TRANSESOPHAGEAL ECHOCARDIOGRAPHY - AN INTRODUCTION FOR ULTRASONOGRAPHERS JOURNAL OF DIAGNOSTIC MEDICAL SONOGRAPHY Tye, T. L., Nellessen, U., Schnittger, I., Popp, R. 1989; 5 (6): 316-321
  • TRANS-ESOPHAGEAL DOPPLER ECHOCARDIOGRAPHY MAYO CLINIC PROCEEDINGS Schnittger, I., Popp, R. L. 1988; 63 (7): 726-728

    View details for Web of Science ID A1988P341300007

    View details for PubMedID 3386312

  • Changes in Doppler echocardiographic indexes of left ventricular function as potential markers of acute cardiac rejection. Circulation Valantine, H. A., Fowler, M. B., Hunt, S. A., NAASZ, C., Hatle, L. K., Billingham, M. E., Stinson, E. B., Popp, R. L. 1987; 76 (5): V86-92

    Abstract

    Changes in left ventricular filling and ejection as potential markers of cardiac allograft rejection were evaluated by serial Doppler echocardiography performed in 23 normal volunteers and within 24 hr of endomyocardial biopsy in 22 patients aged 14 to 53 years (mean 37). Peak aortic velocity, left ventricular ejection time index (ETI), isovolumic relaxation time (IVRT), mitral valve pressure half-time (PHT), peak early mitral flow velocity (M1), and velocity following donor atrial systole (M2) were measured without prior knowledge of endomyocardial biopsy findings. Biopsy specimens were graded histologically as: no rejection, mild rejection (cellular infiltrate), and moderate rejection (myocyte necrosis). A total of 120 biopsy-correlated Doppler echocardiographic studies were performed during 16 weeks after cardiac transplantation. Heart rate and mean arterial pressure were significantly higher in transplant recipients than in normal subjects. IVRT and PHT were significantly longer, while M1 and M2 were similar. Peak aortic velocity was higher in normal subjects than in transplant recipients, while ejection time was similar. Rejection of increasing severity was associated with a progressive shortening of IVRT and PHT and with an increase in M1 (p less than .0005 for all comparisons). Peak aortic velocity and ejection time index did not change significantly with rejection. These data indicate that acute cardiac rejection is accompanied by alteration in left ventricular filling dynamics detectable by Doppler echocardiography, without measureable changes in systolic function. These changes may provide noninvasive markers for surveillance of rejection.

    View details for PubMedID 3311461

  • CHANGES IN DOPPLER ECHOCARDIOGRAPHIC INDEXES OF LEFT-VENTRICULAR FUNCTION AS POTENTIAL MARKERS OF ACUTE CARDIAC REJECTION CIRCULATION Valantine, H. A., Fowler, M. B., Hunt, S. A., NAASZ, C., Hatle, L. K., Billingham, M. E., Stinson, E. B., Popp, R. L. 1987; 76 (5): 86-92
  • THEORETICAL-ANALYSIS OF A TECHNIQUE FOR THE CHARACTERIZATION OF MYOCARDIUM CONTRACTION BASED UPON TEMPORAL CORRELATION OF ULTRASONIC ECHOES IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL Wear, K. A., Popp, R. L. 1987; 34 (3): 368-375

    View details for Web of Science ID A1987H114500011

    View details for PubMedID 18291859

  • DOPPLER ECHOCARDIOGRAPHIC INDEXES OF DIASTOLIC FUNCTION AS MARKERS OF ACUTE CARDIAC REJECTION TRANSPLANTATION PROCEEDINGS Valantine, H., Fowler, M., Hatle, L., Hunt, S., Billingham, M., STINSON, E., Popp, R. 1987; 19 (1): 2556-2559

    View details for Web of Science ID A1987G101500265

    View details for PubMedID 3547937

  • ULTRASONIC CHARACTERIZATION OF CANINE MYOCARDIUM CONTRACTION IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL Wear, K. A., SHOUP, T. A., Popp, R. L. 1986; 33 (4): 347-353

    View details for Web of Science ID A1986C424400001

    View details for PubMedID 18291795

  • BETA-BLOCKADE IN THE COMPENSATION FOR BED-REST CARDIOVASCULAR DECONDITIONING - PHYSIOLOGIC AND PHARMACOLOGIC OBSERVATIONS AMERICAN JOURNAL OF CARDIOLOGY Sandler, H., GOLDWATER, D. J., Popp, R. L., SPACCAVENTO, L., HARRISON, D. C. 1985; 55 (10): D114-D119
  • NONINVASIVE INTRACARDIAC PRESSURE MEASUREMENT USING DOPPLER ULTRASOUND JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY Popp, R. L., Yock, P. G. 1985; 6 (4): 757-758

    View details for Web of Science ID A1985ASE5100007

    View details for PubMedID 3897341

  • A PHYSICIANS VIEW OF ECHOCARDIOGRAPHIC IMAGING HEWLETT-PACKARD JOURNAL Popp, R. L. 1983; 34 (10): 13-16
  • NON-INVASIVE DIAGNOSIS OF LEFT ATRIAL-MYXOMA WESTERN JOURNAL OF MEDICINE ECHT, D. S., GUTHANER, D. F., Blank, N., Popp, R. L. 1983; 138 (5): 722-725

    View details for Web of Science ID A1983QR18200026

    View details for PubMedID 6603714

  • ECHOCARDIOGRAPHY IN ACQUIRED HEART-DISEASE CIRCULATION Popp, R. L., Takamoto, T. 1983; 67 (4): 935-938

    View details for Web of Science ID A1983QG71000033

    View details for PubMedID 6337743

  • M-MODE ECHOCARDIOGRAPHIC ASSESSMENT OF LEFT-VENTRICULAR FUNCTION AMERICAN JOURNAL OF CARDIOLOGY Popp, R. L. 1982; 49 (5): 1312-1318

    View details for Web of Science ID A1982NH12800032

    View details for PubMedID 7064856

  • THE CONCEPT OF 3 DIMENSIONAL RESOLUTION IN ECHOCARDIOGRAPHIC IMAGING ULTRASOUND IN MEDICINE AND BIOLOGY Joynt, L., Popp, R. L. 1982; 8 (3): 237-247

    View details for Web of Science ID A1982NP24300001

    View details for PubMedID 7101572

  • LIMITATIONS OF COMPARING LEFT-VENTRICULAR VOLUMES BY 2 DIMENSIONAL ECHOCARDIOGRAPHY, MYOCARDIAL MARKERS AND CINEANGIOGRAPHY AMERICAN JOURNAL OF CARDIOLOGY Schnittger, I., Fitzgerald, P. J., Daughters, G. T., Ingels, N. B., KANTROWITZ, N. E., Schwarzkopf, A., MEAD, C. W., Popp, R. L. 1982; 50 (3): 512-519

    View details for Web of Science ID A1982PE99400013

    View details for PubMedID 7113934

  • ADVANCING THE DIAGNOSIS OF LEFT ATRIAL-MYXOMA CHEST ECHT, D. S., Green, S. E., Popp, R. L. 1982; 82 (5): 522-524
  • INTRODUCTION - ECHOCARDIOGRAPHIC EVALUATION OF VENTRICULAR-FUNCTION - AN OVERVIEW AMERICAN JOURNAL OF CARDIOLOGY Feigenbaum, H., Henry, W. L., Pearlman, A. S., Popp, R. L. 1982; 49 (5): 1311-1312

    View details for Web of Science ID A1982NH12800031

    View details for PubMedID 7064855

  • INVITRO EVALUATION OF AN ULTRASONIC 3-DIMENSIONAL IMAGING AND VOLUME SYSTEM ULTRASONIC IMAGING Brinkley, J. F., MURAMATSU, S. K., MCCALLUM, W. D., Popp, R. L. 1982; 4 (2): 126-139

    View details for Web of Science ID A1982NQ95600003

    View details for PubMedID 7201694

  • SCREENING FOR ATRIAL SEPTAL-DEFECTS WITH ECHOCARDIOGRAPHY JOURNAL OF CARDIOVASCULAR MEDICINE French, J. W., Popp, R. L. 1981; 6 (5): 490-?
  • ROLE OF ECHOCARDIOGRAPHY IN DIAGNOSIS AND MANAGEMENT OF VALVULAR HEART-DISEASE MODERN CONCEPTS OF CARDIOVASCULAR DISEASE Green, S. E., Popp, R. L. 1981; 50 (6): 31-36
  • CLINICAL UTILITY OF 2 DIMENSIONAL ECHOCARDIOGRAPHY IN INFECTIVE ENDOCARDITIS AMERICAN JOURNAL OF CARDIOLOGY Martin, R. P., Meltzer, R. S., Chia, B. L., Stinson, E. B., Rakowski, H., Popp, R. L. 1980; 46 (3): 379-385

    View details for Web of Science ID A1980KG48100004

    View details for PubMedID 7415982

  • APPARENT ASYMMETRIC SEPTAL HYPERTROPHY DUE TO ANGLED INTER-VENTRICULAR SEPTUM AMERICAN JOURNAL OF CARDIOLOGY Fowles, R. E., Martin, R. P., Popp, R. L. 1980; 46 (3): 386-392

    View details for Web of Science ID A1980KG48100005

    View details for PubMedID 7191198

  • VENTRICULAR SEPTAL-DEFECT NOTED BY 2-DIMENSIONAL ECHOCARDIOGRAPHY CHEST Meltzer, R. S., SCHWARTZ, J., French, J., Popp, R. L. 1979; 76 (4): 455-457

    View details for Web of Science ID A1979HP30400020

    View details for PubMedID 477436

  • RELIABILITY AND REPRODUCIBILITY OF 2 DIMENSIONAL ECHOCARDIOGRAPHIC MEASUREMENT OF THE STENOTIC MITRAL-VALVE ORIFICE AREA AMERICAN JOURNAL OF CARDIOLOGY Martin, R. P., Rakowski, H., Kleiman, J. H., Beaver, W., London, E., Popp, R. L. 1979; 43 (3): 560-568

    View details for Web of Science ID A1979GL34000014

    View details for PubMedID 420105

  • 2-DIMENSIONAL ECHOCARDIOGRAPHIC QUANTIFICATION OF INFARCT SIZE ALTERATION BY PHARMACOLOGIC AGENTS AMERICAN JOURNAL OF CARDIOLOGY Meltzer, R. S., WOYTHALER, J. N., Buda, A. J., Griffin, J. C., Harrison, W. D., Martin, R. P., HARRISON, D. C., Popp, R. L. 1979; 44 (2): 257-262
  • ECHOCARDIOGRAPHY IN DISCRETE SUB-AORTIC STENOSIS CIRCULATION Krueger, S. K., French, J. W., Forker, A. D., Caudill, C. C., Popp, R. L. 1979; 59 (3): 506-513

    View details for Web of Science ID A1979GK12000012

    View details for PubMedID 761330

  • CLINICAL UTILITY OF 2-DIMENSIONAL ECHOCARDIOGRAPHY ACTA MEDICA SCANDINAVICA Rakowski, H., Martin, R. P., French, J. W., Popp, R. L. 1979: 68-78

    View details for Web of Science ID A1979GY67500006

    View details for PubMedID 286521

  • IDIOPATHIC HYPERTROPHIC SUB-AORTIC STENOSIS VIEWED BY WIDE-ANGLE, PHASED-ARRAY ECHOCARDIOGRAPHY CIRCULATION Martin, R. P., Rakowski, H., French, J., Popp, R. L. 1979; 59 (6): 1206-1217

    View details for Web of Science ID A1979GX15600016

    View details for PubMedID 571310

  • LEFT-VENTRICULAR FUNCTION - ASSESSMENT BY WIDE ANGLE 2-DIMENSIONAL ULTRASONIC SECTOR SCANNING ACTA MEDICA SCANDINAVICA Rakowski, H., Martin, R. P., Popp, R. L. 1979: 105-111

    View details for Web of Science ID A1979GY67500010

    View details for PubMedID 286501

  • CURRENT CONCEPTS IN CARDIOLOGY - ECHOCARDIOGRAPHIC EVALUATION OF LEFT-VENTRICULAR FUNCTION NEW ENGLAND JOURNAL OF MEDICINE Popp, R. L. 1977; 296 (15): 856-858
  • MITRAL-VALVE PROLAPSE AND INFECTIVE ENDOCARDITIS AMERICAN JOURNAL OF MEDICINE CORRIGALL, D., Bolen, J., Hancock, E. W., Popp, R. L. 1977; 63 (2): 215-222

    View details for Web of Science ID A1977DR94700007

    View details for PubMedID 888845

  • ECHOCARDIOGRAPHIC ASSESSMENT OF CARDIAC DISEASE CIRCULATION Popp, R. L. 1976; 54 (4): 538-552

    View details for Web of Science ID A1976CE72200003

    View details for PubMedID 786497

  • PHONOCARDIOGRAPHIC AND ECHOCARDIOGRAPHIC FEATURES OF RUPTURED AORTIC VALVULAR CUSP CHEST CORRIGALL, D., STRUNK, B. L., Popp, R. L. 1976; 69 (5): 669-671

    View details for Web of Science ID A1976BQ69700020

    View details for PubMedID 1269278

  • MITRAL-VALVE PROLAPSE SYNDROME JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION Popp, R. L., WINKLE, R. A. 1976; 236 (7): 867-870

    View details for Web of Science ID A1976CA63400032

    View details for PubMedID 947271

  • ECHOCARDIOGRAPHIC FEATURES OF SUPRAVALVULAR AORTIC-STENOSIS CIRCULATION BOLEN, J. L., Popp, R. L., French, J. W. 1975; 52 (5): 817-822

    Abstract

    A method for the echocardiographic detection of supravalvular aortic stenosis (SVAS) is described and the findings in a series of patients are presented. When compared to angiography, the echo tended to underestimate the severity of the supravalvular aortic obstruction. However, echocardiography appears to be a valuable, noninvasive method for detecting SVAS.

    View details for Web of Science ID A1975AT26800010

    View details for PubMedID 1175262

  • [Use of ultrasonics in the diagnosis of heart diseases]. Terapevticheskii arkhiv Garrison, D. S., Popp, R. L., LOPETS, M. G. 1974; 46 (6): 128-135

    View details for PubMedID 4610874

  • IMPROVED METHOD FOR ECHOGRAPHIC DETECTION OF LEFT ATRIAL ENLARGEMENT CIRCULATION Brown, O. R., HARRISON, D. C., Popp, R. L. 1974; 50 (1): 58-64

    View details for Web of Science ID A1974T610500010

    View details for PubMedID 4276017

  • ECHOCARDIOGRAPHIC CRITERIA IN DIAGNOSIS OF IDIOPATHIC HYPERTROPHIC SUBAORTIC STENOSIS CIRCULATION ROSSEN, R. M., GOODMAN, D. J., Ingham, R. E., Popp, R. L. 1974; 50 (4): 747-751

    View details for Web of Science ID A1974U467100016

    View details for PubMedID 4278516

  • ECHOCARDIOGRAPHIC FINDINGS IN DISCRETE SUBVALVULAR AORTIC-STENOSIS CIRCULATION Popp, R. L., SILVERMA, J. F., French, J. W., Stinson, E. B., HARRISON, D. C. 1974; 49 (2): 226-231

    View details for Web of Science ID A1974S094200004

    View details for PubMedID 4855729

  • NONINVASIVE LEFT VENTRICULOGRAM NEW ENGLAND JOURNAL OF MEDICINE Popp, R. L. 1974; 291 (23): 1254-1255
  • ILLUSTRATIVE ECHOCARDIOGRAM - ECHOCARDIOGRAPHIC PSEUDO IDIOPATHIC HYPERTROPHIC SUBAORTIC STENOSIS CHEST GOODMAN, D. J., ROSSEN, R. M., Popp, R. L. 1974; 66 (5): 573-574
  • CORONARY-ARTERY DISEASE WITH IDIOPATHIC HYPERTROPHIC SUBAORTIC STENOSIS LANCET MARCUS, G. B., Popp, R. L., Stinson, E. B. 1974; 1 (7863): 901-903

    View details for Web of Science ID A1974S944000006

    View details for PubMedID 4133421

  • VENTRICULAR SYSTOLIC SEPTAL THICKENING AND EXCURSION IN IDIOPATHIC HYPERTROPHIC SUBAORTIC STENOSIS NEW ENGLAND JOURNAL OF MEDICINE ROSSEN, R. M., GOODMAN, D. J., Ingham, R. E., Popp, R. L. 1974; 291 (25): 1317-1319

    View details for Web of Science ID A1974V010300001

    View details for PubMedID 4473712

  • ECHOCARDIOGRAPHIC ABNORMALITIES IN MITRAL-VALVE PROLAPSE SYNDROME CIRCULATION Popp, R. L., Brown, O. R., SILVERMA, J. F., HARRISON, D. C. 1974; 49 (3): 428-433

    View details for Web of Science ID A1974S351000010

    View details for PubMedID 4813176

  • SOUND IN CARDIAC DIAGNOSIS TERAPEVTICHESKII ARKHIV Garrison, D. S., Popp, R. L., LOPETS, M. G. 1974; 46 (6): 128-135
  • COMPUTER-PROCESSING OF ULTRASONIC DATA FROM CARDIOVASCULAR-SYSTEM COMPUTERS AND BIOMEDICAL RESEARCH Hirsch, M., Sanders, W. J., Popp, R. L., HARRISON, D. C. 1973; 6 (4): 336-346

    View details for Web of Science ID A1973Q621800004

    View details for PubMedID 4582625

Stanford Medicine Resources: