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Roy Filly, MD

TitleProfessor Emeritus
InstitutionUniversity of California San Francisco
DepartmentRadiology
Address505 Parnassus Avenue
San Francisco CA 94117
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    Collapse Biography 
    Collapse Education and Training
    Ohio State UniversityM.D.1970School of Medicine
    Collapse Awards and Honors
    Society of Radiologist in Ultrasound2011Keynote Speaker
    Society of Radiologists in Ultrasound2008First Recipient, Lawrence A. Mack Lifetime Achievement Award
    University of Texas, Southwestern, Dallas, TX2006Jack Reynolds Lecturer
    Los Angeles Radiological Society2005Honorary Leopold Lecturer
    American Institute of Ultrasound in Medicine2004Honorary Pioneer Award
    University of California, San Francisco2001Howard Steinbach Memorial Lecture Radiology Grand Rounds
    Award American Institute of Ultrasound in Medicine 1997William J. Fry Memorial Lecture
    University of Manchester England1991The Gray-Hartley Memorial Lecturer
    University of California, San Francisco1990The Walter W. Herbert Memorial Lecturer
    The John Hopkins School of Medicine1986David M. Gould Memorial Lecturer
    American Roentgen Ray Society1984Executive Council Award
    University of California, San Francisco School of Medicine1982Chief Residents Obstetrics and Gynecology Award
    University of California, San Francisco School of Medicine1981 Chief Residents Award Teaching Award
    Ohio State University1980Alumni Achievement Award
    University of California, San Francisco1978Hideyo Minagi Outstanding Teacher Award
    Stanford University1974Robert Reid Newel Award in Radiology
    Ohio State University1970Paul D. Meyer Award

    Collapse Overview 
    Collapse Overview
    Roy A. Filly, MD, is an Emeritus Professor of Radiology, Obstetrics, Gynecology and Reproductive Sciences at the University of California, San Francisco. He obtained his medical degree from Ohio State University College of Medicine, Columbus in 1970, and completed his residency at Stanford University Medical Center Division of Diagnostic Radiology, followed by a Chief Resident from Stanford University Medical Center Division of Diagnostic Radiology in 1974.

    Dr. Filly is Co-Founder of the UCSF Fetal Treatment Center, the pioneering organization known worldwide since 1981 as the “Birthplace of Fetal Surgery.”  Frequently featured in national and international news articles, Dr. Filly has received numerous awards, including the prestigious Pioneer Award of the World Federation of Ultrasound in Medicine and Biology and the Fry Memorial Award of the American Institute of Ultrasound in Medicine, the highest award for a North American sonologist. Dr. Filly is one of fewer than 100 worldwide fellows of the Society of Radiologists in Ultrasound, and he is also a fellow of the American Institute of Ultrasound in Medicine. 

    Dr. Filly has published more than 400 peer-reviewed manuscripts, and over 70 textbook chapters. He is the co-author of two books and an educational CD-ROM, Upper Abdominal Sonographic Anatomy.

    Expertise:
    Ultrasound

    Specialty:
    Fetal ultrasound, obstetrics and gynecology, pediatric ultrasound

    Professional Interests:
    Obstetrics, gynecology, reproductive sciences

    Education and Training:
    • Medical School: Ohio State University College of Medicine, Columbus
    • Internship: Case Western Reserve University, Cleveland, Ohio
    • Residency: Stanford University Medical Center Division of Diagnostic Radiology
    • Fellowship: Stanford University Medical Center Division of Diagnostic Radiology - Chief Resident
    • American Board of Radiology


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    Collapse Websites

    Collapse Bibliographic 
    Collapse Publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
    List All   |   Timeline
    1. Basta AM, Lusk LA, Keller RL, Filly R. Spleen Behind the Heart Complicates Lung-to-Head Ratio Measurement in Left-Sided Congenital Diaphragmatic Hernia. J Ultrasound Med. 2016 Dec; 35(12):2717-2721. PMID: 27872422.
      View in: PubMed
    2. Morgan TA, Salmeen K, Filly R. A Benign Anomalous Umbilical Vein: Not All Umbilical Veins That Wander Are Lost. Ultrasound Q. 2016 Mar; 32(1):47-50. PMID: 26938033.
      View in: PubMed
    3. Basta AM, Lusk LA, Keller RL, Filly R. Fetal Stomach Position Predicts Neonatal Outcomes in Isolated Left-Sided Congenital Diaphragmatic Hernia. Fetal Diagn Ther. 2016; 39(4):248-55. PMID: 26562540; PMCID: PMC4866917 [Available on 01/01/17].
    4. Lusk LA, Wai KC, Moon-Grady AJ, Basta AM, Filly R, Keller RL. Fetal ultrasound markers of severity predict resolution of pulmonary hypertension in congenital diaphragmatic hernia. Am J Obstet Gynecol. 2015 Aug; 213(2):216.e1-8. PMID: 25797231; PMCID: PMC4519413.
    5. Iqbal CW, Derderian SC, Lusk L, Basta A, Filly R, Lee H, Hirose S. Outcomes for Prenatally Diagnosed Right Congenital Diaphragmatic Hernia. Fetal Diagn Ther. 2015 Mar 04. PMID: 25765922.
      View in: PubMed
    6. Morgan TA, Rabban JT, Filly R. Testicular malakoplakia: a rare sonographic mimic of malignancy. J Clin Ultrasound. 2015 Mar; 43(3):199-202. PMID: 25237793.
      View in: PubMed
    7. Hu M, Poder L, Filly R. Impact of new society of radiologists in ultrasound early first-trimester diagnostic criteria for nonviable pregnancy. J Ultrasound Med. 2014 Sep; 33(9):1585-8. PMID: 25154939.
      View in: PubMed
    8. Burger IM, Filly R. Overlapping sutures: a new sign of a marked pressure effect in twin-twin transfusion syndrome. J Ultrasound Med. 2014 Mar; 33(3):547-9. PMID: 24567468.
      View in: PubMed
    9. Yitta S, Saadai P, Filly R. The fetal urinoma revisited. J Ultrasound Med. 2014 Jan; 33(1):161-6. PMID: 24371112.
      View in: PubMed
    10. Doubilet PM, Benson CB, Bourne T, Blaivas M. Diagnostic criteria for nonviable pregnancy early in the first trimester. N Engl J Med. 2013 Oct 10; 369(15):1443-51. PMID: 24106937.
      View in: PubMed
    11. Burger IM, Filly R, Bowie J, Barkovich AJ. The grand unifying theory of bright echoes in the fetal and neonatal brain. J Ultrasound Med. 2012 Oct; 31(10):1665-73. PMID: 23011630.
      View in: PubMed
    12. Burger IM, Filly R. Value of "minimum menstrual age" in determining early pregnancy failure. J Ultrasound Med. 2011 Nov; 30(11):1553-9. PMID: 22039028.
      View in: PubMed
    13. Filly R, Baskin LS. Multifocal nephrogenic adenoma of the bladder in a pediatric patient. J Ultrasound Med. 2010 Aug; 29(8):1239-41. PMID: 20660459.
      View in: PubMed
    14. Yegul NT, Filly R. Further observations on the empty "amnion sign". J Clin Ultrasound. 2010 Mar-Apr; 38(3):113-7. PMID: 20127965.
      View in: PubMed
    15. Wax JR, Pinette MG, Filly R. The expanded amnion sign: evidence of early embryonic death. J Ultrasound Med. 2010 Feb; 29(2):323-4; author reply 323-4. PMID: 20103808.
      View in: PubMed
    16. Filly MR, Callen PW, Yegul NT, Filly R. The yolk stalk sign: evidence of death in small embryos without heartbeats. J Ultrasound Med. 2010 Feb; 29(2):237-41. PMID: 20103794.
      View in: PubMed
    17. Filly MR, Filly R, Barkovich AJ, Goldstein RB. Supratentorial abnormalities in the Chiari II malformation, IV: the too-far-back ventricle. J Ultrasound Med. 2010 Feb; 29(2):243-8. PMID: 20103795.
      View in: PubMed
    18. Desai G, Filly R. Sonographic anatomy of the gastrohepatic ligament. J Ultrasound Med. 2010 Jan; 29(1):87-93. PMID: 20040779.
      View in: PubMed
    19. Yegul NT, Filly R. The expanded amnion sign: evidence of early embryonic death. J Ultrasound Med. 2009 Oct; 28(10):1331-5. PMID: 19778879.
      View in: PubMed
    20. Sy ED, Filly R, Cheong ML, Clifton MS, Cortes RA, Ohashi S, Takifuji K, Ventura DE, Grethel EJ, Wagner AJ, Gress EA, Ball RH, Lee H, Harrison MR. Prognostic role of tumor-head volume ratio in fetal sacrococcygeal teratoma. Fetal Diagn Ther. 2009; 26(2):75-80. PMID: 19752518.
      View in: PubMed
    21. Wong SK, Barkovich AJ, Callen AL, Filly R. Supratentorial abnormalities in the Chiari II malformation, III: The interhemispheric cyst. J Ultrasound Med. 2009 Aug; 28(8):999-1006. PMID: 19643781.
      View in: PubMed
    22. Desai G, Filly R, Rand L. Prenatal detection of an extra-adrenal neuroblastoma with hepatic metastases. J Ultrasound Med. 2009 Aug; 28(8):1085-90. PMID: 19643793.
      View in: PubMed
    23. Stein JC, River G, Kalika I, Hebig A, Price D, Jacoby VL, Filly R. A survey of bedside ultrasound use by emergency physicians in California. J Ultrasound Med. 2009 Jun; 28(6):757-63. PMID: 19470816.
      View in: PubMed
    24. Aziz S, Cho RC, Baker DB, Chhor C, Filly R. "Empty" sac in pregnant women with bleeding: are measurements answering the right question? J Clin Ultrasound. 2009 Jun; 37(5):249-52. PMID: 19226513.
      View in: PubMed
    25. Sista AK, Filly R. Type 1 congenital extrahepatic portosystemic shunt. J Ultrasound Med. 2009 May; 28(5):703-5. PMID: 19389913.
      View in: PubMed
    26. Callen AL, Stengel JW, Filly R. Supratentorial abnormalities in the Chiari II malformation, II: tectal morphologic changes. J Ultrasound Med. 2009 Jan; 28(1):29-35. PMID: 19106353.
      View in: PubMed
    27. Aziz S, Cho RC, Baker DB, Chhor C, Filly R. Five-millimeter and smaller embryos without embryonic cardiac activity: outcomes in women with vaginal bleeding. J Ultrasound Med. 2008 Nov; 27(11):1559-61. PMID: 18946094.
      View in: PubMed
    28. Reddy UM, Filly R, Copel JA. Prenatal imaging: ultrasonography and magnetic resonance imaging. Obstet Gynecol. 2008 Jul; 112(1):145-57. PMID: 18591320.
      View in: PubMed
    29. Sista AK, Filly R. The falling snow sign in an ovarian dermoid. J Ultrasound Med. 2008 Mar; 27(3):496. PMID: 18314530.
      View in: PubMed
    30. Sista AK, Filly R. Paradoxical movements of abdominal contents indicating a congenital diaphragmatic hernia. J Ultrasound Med. 2008 Mar; 27(3):497. PMID: 18314533.
      View in: PubMed
    31. Sista AK, Filly R. Color Doppler sonography in evaluation of spermatoceles: the "falling snow" sign. J Ultrasound Med. 2008 Jan; 27(1):141-3. PMID: 18096740.
      View in: PubMed
    32. Callen AL, Filly R. Supratentorial abnormalities in the Chiari II malformation, I: the ventricular "point". J Ultrasound Med. 2008 Jan; 27(1):33-8. PMID: 18096728.
      View in: PubMed
    33. Sista AK, Filly R. Paradoxical movement of abdominal contents: a real-time sonographic finding indicating a congenital diaphragmatic hernia. J Ultrasound Med. 2007 Nov; 26(11):1617-9. PMID: 17957056.
      View in: PubMed
    34. Yang SH, Nobuhara KK, Keller RL, Ball RH, Goldstein RB, Feldstein VA, Callen PW, Filly R, Farmer DL, Harrison MR, Lee H. Reliability of the lung-to-head ratio as a predictor of outcome in fetuses with isolated left congenital diaphragmatic hernia at gestation outside 24-26 weeks. Am J Obstet Gynecol. 2007 Jul; 197(1):30.e1-7. PMID: 17618746.
      View in: PubMed
    35. Vahidi K, Joe BN, Glenn OA, Barkovich AJ, Filly R, Ball R, Coakley FV. Prenatal imaging of congenital maxillomandibular fusion: case report and review of the literature. J Ultrasound Med. 2007 Mar; 26(3):381-9. PMID: 17324991.
      View in: PubMed
    36. Golombeck K, Ball RH, Lee H, Farrell JA, Farmer DL, Jacobs VR, Rosen MA, Filly R, Harrison MR. Maternal morbidity after maternal-fetal surgery. Am J Obstet Gynecol. 2006 Mar; 194(3):834-9. PMID: 16522421.
      View in: PubMed
    37. Caughey AB, Lyell DJ, Washington AE, Filly R, Norton ME. Ultrasound screening of fetuses at increased risk for Down syndrome: how many missed diagnoses? Prenat Diagn. 2006 Jan; 26(1):22-7. PMID: 16378329.
      View in: PubMed
    38. Schreckengost JL, Filly R. The new obstetric ultrasound guidelines: some concerns. J Ultrasound Med. 2005 Dec; 24(12):1752-4. PMID: 16301736.
      View in: PubMed
    39. Patel MD, Feldstein VA, Filly R. The likelihood ratio of sonographic findings for the diagnosis of hemorrhagic ovarian cysts. J Ultrasound Med. 2005 May; 24(5):607-14; quiz 615. PMID: 15840791.
      View in: PubMed
    40. Filly AL, Robnett-Filly B, Filly R. Syndromes with focal femoral deficiency: strengths and weaknesses of prenatal sonography. J Ultrasound Med. 2004 Nov; 23(11):1511-6. PMID: 15498917.
      View in: PubMed
    41. Williams G, Coakley FV, Qayyum A, Farmer DL, Joe BN, Filly R. Fetal relative lung volume: quantification by using prenatal MR imaging lung volumetry. Radiology. 2004 Nov; 233(2):457-62. PMID: 15459321.
      View in: PubMed
    42. Filly R. Echogenic intracardiac foci and choroid plexus cysts. J Ultrasound Med. 2004 Aug; 23(8):1135-8; author reply 1138-9. PMID: 15284476.
      View in: PubMed
    43. Filly R, Benacerraf BR, Nyberg DA, Hobbins JC. Choroid plexus cyst and echogenic intracardiac focus in women at low risk for chromosomal anomalies. J Ultrasound Med. 2004 Apr; 23(4):447-9. PMID: 15098860.
      View in: PubMed
    44. Coakley FV, Glenn OA, Qayyum A, Barkovich AJ, Goldstein R, Filly R. Fetal MRI: a developing technique for the developing patient. AJR Am J Roentgenol. 2004 Jan; 182(1):243-52. PMID: 14684546.
      View in: PubMed
    45. Harrison MR, Keller RL, Hawgood SB, Kitterman JA, Sandberg PL, Farmer DL, Lee H, Filly R, Farrell JA, Albanese CT. A randomized trial of fetal endoscopic tracheal occlusion for severe fetal congenital diaphragmatic hernia. N Engl J Med. 2003 Nov 13; 349(20):1916-24. PMID: 14614166.
      View in: PubMed
    46. Winn VD, Sonson J, Filly R. Echogenic intracardiac focus: potential for misdiagnosis. J Ultrasound Med. 2003 Nov; 22(11):1207-14; quiz 1216-7. PMID: 14620892.
      View in: PubMed
    47. Feldstein VA, Filly R. Complications of monochorionic twins. Radiol Clin North Am. 2003 Jul; 41(4):709-27. PMID: 12899487.
      View in: PubMed
    48. Moes MJ, Filly R. The neonatal diaphragmatic crura are hypertrophied: a necessary preparation for the first breath? J Ultrasound Med. 2003 Jul; 22(7):715-8. PMID: 12862271.
      View in: PubMed
    49. Harrison MR, Sydorak RM, Farrell JA, Kitterman JA, Filly R, Albanese CT. Fetoscopic temporary tracheal occlusion for congenital diaphragmatic hernia: prelude to a randomized, controlled trial. J Pediatr Surg. 2003 Jul; 38(7):1012-20. PMID: 12861529.
      View in: PubMed
    50. Markhardt BK, Farmer DL, Filly R. Presumptive intrahepatic congenital cystic adenomatoid malformation. J Ultrasound Med. 2003 May; 22(5):531-6. PMID: 12751866.
      View in: PubMed
    51. Filly R. Is it time for the sonoscope? If so, then let's do it right! J Ultrasound Med. 2003 Apr; 22(4):323-5. PMID: 12693615.
      View in: PubMed
    52. Smith-Bindman R, Chu PW, Ecker J, Feldstein VA, Filly R, Bacchetti P. Adverse birth outcomes in relation to prenatal sonographic measurements of fetal size. J Ultrasound Med. 2003 Apr; 22(4):347-56; quiz 357-8. PMID: 12693618.
      View in: PubMed
    53. Dhingsa R, Coakley FV, Albanese CT, Filly R, Goldstein R. Prenatal sonography and MR imaging of pulmonary sequestration. AJR Am J Roentgenol. 2003 Feb; 180(2):433-7. PMID: 12540448.
      View in: PubMed
    54. Kinoshita LL, Callen PW, Filly R, Hill LM. Sonographic detection of gallbladder duplication: two cases discovered in utero. J Ultrasound Med. 2002 Dec; 21(12):1417-21. PMID: 12494985.
      View in: PubMed
    55. Filly R, Reddy SG, Nalbandian AB, Lu Y, Callen PW. Sonographic evaluation of liver nodularity: Inspection of deep versus superficial surfaces of the liver. J Clin Ultrasound. 2002 Sep; 30(7):399-407. PMID: 12210457.
      View in: PubMed
    56. Filly R, Crane JP. Routine obstetric sonography. J Ultrasound Med. 2002 Jul; 21(7):713-8. PMID: 12099557.
      View in: PubMed
    57. Sydorak RM, Hirose S, Sandberg PL, Filly R, Harrison MR, Farmer DL, Albanese CT. Chorioamniotic membrane separation following fetal surgery. J Perinatol. 2002 Jul-Aug; 22(5):407-10. PMID: 12082478.
      View in: PubMed
    58. Smith-Bindman R, Chu PW, Ecker JL, Feldstein VA, Filly R, Bacchetti P. US evaluation of fetal growth: prediction of neonatal outcomes. Radiology. 2002 Apr; 223(1):153-61. PMID: 11930060.
      View in: PubMed
    59. Tsao K, Chuang NA, Filly R, Barkovich AJ, Goldstein RB. Entrapped fourth ventricle: another pitfall in the prenatal diagnosis of Dandy-Walker malformations. J Ultrasound Med. 2002 Jan; 21(1):91-6. PMID: 11794408.
      View in: PubMed