Thomas Chi, MD

TitleAssociate Professor
InstitutionUniversity of California San Francisco
Address400 Parnassus Avenue
San Francisco CA 94117
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    Collapse Biography 
    Collapse Education and Training
    Stanford University, Stanford, CABA05/2000Human Biology
    Stanford University, Stanford, CAMA05/2001Music
    Stanford University, Stanford, CAMA05/2001Sociology
    University of California, San Francisco, San FranciscoM.D.05/2005 Medicine
    University of California, San Francisco, San FranciscoInternship06/2006General Surgery
    University of California, San Francisco, San FranciscoResidency06/2011Urology
    University of California, San Francisco, San FranciscoFellowship06/2013Endourology

    Collapse Overview 

    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.
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    1. Tzou DT, Caldwell C, Simko JP, Chi T, Stoller ML. Management of Inverted Papilloma during Holmium Laser Enucleation of Prostate (HoLEP). Urology. 2018 Mar 12. PMID: 29545053.
      View in: PubMed
    2. Taguchi K, Usawachintachit M, Tzou DT, Sherer BA, Metzler I, Isaacson D, Stoller ML, Chi T. Micro-Costing Analysis Demonstrates Comparable Costs for LithoVue Compared to Reusable Flexible Fiberoptic Ureteroscopes. J Endourol. 2018 Jan 12. PMID: 29239227.
      View in: PubMed
    3. May PC, Hsi RS, Tran HH, Stoller M, Chew BH, Chi T, Usawachintachit M, Duty BD, Gore JL, Harper JD. The Morbidity of Ureteral Strictures in Patients with Prior Ureteroscopic Stone Surgery: Multi-Institutional Outcomes. J Endourol. 2018 Jan 12. PMID: 29325445.
      View in: PubMed
    4. Usawachintachit M, Sherer B, Hudnall M, Tzou DT, Taguchi K, Hsi RS, Stoller M, Chi T. Clinical Outcomes for Cystinuria Patients with Unilateral Versus Bilateral Cystine Stone Disease. J Endourol. 2018 Feb; 32(2):148-153. PMID: 29179563.
      View in: PubMed
    5. Bayne DB, Usawachintachit M, Chi T. Ultrasound for Intraoperative Confirmation of Antegrade Ureteral Stent Placement During Laparoscopic Pyeloplasty. Urology. 2018 Jan 02. PMID: 29305200.
      View in: PubMed
    6. Taguchi K, Harper JD, Stoller ML, Duty BD, Sorensen MD, Sur RL, Usawachintachit M, Tzou DT, Wenzler DL, Isaacson D, Xu A, Chu C, Zaid UB, Taylor ER, Ramaswamy K, Chi T. Identifying factors associated with need for flexible ureteroscope repair: a Western Endourology STone (WEST) research consortium prospective cohort study. Urolithiasis. 2017 Dec 09. PMID: 29224057.
      View in: PubMed
    7. Tzou DT, Isaacson D, Usawachintachit M, Wang ZJ, Taguchi K, Hills NK, Hsi RS, Sherer BA, Reliford-Titus S, Duty B, Harper JD, Sorensen M, Sur RL, Stoller ML, Chi T. Variation in Radiologic and Urologic Computed Tomography Interpretation of Urinary Tract Stone Burden: Results From the Registry for Stones of the Kidney and Ureter. Urology. 2018 Jan; 111:59-64. PMID: 29032235.
      View in: PubMed
    8. Isaacson D, Ahmad T, Metzler I, Tzou DT, Taguchi K, Usawachintachit M, Zetumer S, Sherer B, Stoller M, Chi T. Defining the Costs of Reusable Flexible Ureteroscope Reprocessing Using Time-Driven Activity-Based Costing. J Endourol. 2017 Oct; 31(10):1026-1031. PMID: 28830223.
      View in: PubMed
    9. Taguchi K, Usawachintachit M, Hamamoto S, Unno R, Tzou DT, Sherer BA, Wang Y, Okada A, Stoller ML, Yasui T, Chi T. Optimizing RNA Extraction of Renal Papilla Biopsy Tissue in Kidney Stone Formers: A New Methodology for Genomic Study. J Endourol. 2017 Sep; 31(9):922-929. PMID: 28719978.
      View in: PubMed
    10. Chi T, Usawachintachit M, Weinstein S, Kohi MP, Taylor A, Tzou DT, Chang HC, Stoller M, Mongan J. Contrast Enhanced Ultrasound as a Radiation-Free Alternative to Fluoroscopic Nephrostogram for Evaluating Ureteral Patency. J Urol. 2017 Dec; 198(6):1367-1373. PMID: 28743528.
      View in: PubMed
    11. Chi T. Editorial Comment. J Urol. 2017 Aug; 198(2):400. PMID: 28457841.
      View in: PubMed
    12. Taguchi K, Yasui T, Milliner DS, Hoppe B, Chi T. Genetic Risk Factors for Idiopathic Urolithiasis: A Systematic Review of the Literature and Causal Network Analysis. Eur Urol Focus. 2017 Feb; 3(1):72-81. PMID: 28720371.
      View in: PubMed
    13. Usawachintachit M, Isaacson DS, Taguchi K, Tzou DT, Hsi RS, Sherer BA, Stoller ML, Chi T. A Prospective Case-Control Study Comparing LithoVue, a Single-Use, Flexible Disposable Ureteroscope, with Flexible, Reusable Fiber-Optic Ureteroscopes. J Endourol. 2017 05; 31(5):468-475. PMID: 28287823.
      View in: PubMed
    14. Wang RC, Addo N, Chi T, Moore C, Mallin M, Shiboski S, Stoller M, Smith-Bindman R. Medical expulsive therapy use in emergency department patients diagnosed with ureteral stones. Am J Emerg Med. 2017 Aug; 35(8):1069-1074. PMID: 28291706.
      View in: PubMed
    15. Chi T. Editorial Comment. Urology. 2017 04; 102:59-60. PMID: 28233589.
      View in: PubMed
    16. Zee T, Bose N, Zee J, Beck JN, Yang S, Parihar J, Yang M, Damodar S, Hall D, O'Leary MN, Ramanathan A, Gerona RR, Killilea DW, Chi T, Tischfield J, Sahota A, Kahn A, Stoller ML, Kapahi P. a-Lipoic acid treatment prevents cystine urolithiasis in a mouse model of cystinuria. Nat Med. 2017 Mar; 23(3):288-290. PMID: 28165480.
      View in: PubMed
    17. Hudnall M, Usawachintachit M, Metzler I, Tzou DT, Harrison B, Lobo E, Chi T. Ultrasound Guidance Reduces Percutaneous Nephrolithotomy Cost Compared to Fluoroscopy. Urology. 2017 May; 103:52-58. PMID: 28024969.
      View in: PubMed
    18. Tzou DT, Weinstein S, Usawachintachit M, Mongan J, Greene KL, Chi T. Contrast Enhanced Ultrasound Detects Recurrent Renal Cell Carcinoma in the Setting of Chronic Renal Insufficiency. Clin Genitourin Cancer. 2017 08; 15(4):e735-e737. PMID: 28131753.
      View in: PubMed
    19. Usawachintachit M, Tzou DT, Mongan J, Taguchi K, Weinstein S, Chi T. Feasibility of Retrograde Ureteral Contrast Injection to Guide Ultrasonographic Percutaneous Renal Access in the Nondilated Collecting System. J Endourol. 2017 02; 31(2):129-134. PMID: 27809568.
      View in: PubMed
    20. Tasian GE, Ross ME, Song L, Grundmeier RW, Massey J, Denburg MR, Copelovitch L, Warner S, Chi T, Killilea DW, Stoller ML, Furth SL. Dietary Zinc and Incident Calcium Kidney Stones in Adolescence. J Urol. 2017 May; 197(5):1342-1348. PMID: 27889417.
      View in: PubMed
    21. Usawachintachit M, Tzou DT, Mongan J, Weinstein S, Chi T. Antegrade ultrasound contrast injection facilitates accurate nephrostomy tube positioning during percutaneous nephrolithotomy. Int J Urol. 2017 Mar; 24(3):239-240. PMID: 27862356.
      View in: PubMed
    22. Tzou DT, Taguchi K, Chi T, Stoller ML. Animal models of urinary stone disease. Int J Surg. 2016 Dec; 36(Pt D):596-606. PMID: 27840313.
      View in: PubMed
    23. Tzou DT, Usawachintachit M, Taguchi K, Chi T. Ultrasound Use in Urinary Stones: Adapting Old Technology for a Modern-Day Disease. J Endourol. 2017 Apr; 31(S1):S89-S94. PMID: 27733052.
      View in: PubMed
    24. Chang HC, Tzou DT, Usawachintachit M, Duty BD, Hsi RS, Harper JD, Sorensen MD, Stoller ML, Sur RL, Chi T. Rationale and Design of the Registry for Stones of the Kidney and Ureter (ReSKU): A Prospective Observational Registry to Study the Natural History of Urolithiasis Patients. J Endourol. 2016 12; 30(12):1332-1338. PMID: 27758162.
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    25. Metzler IS, Smith-Bindman R, Moghadassi M, Wang RC, Stoller ML, Chi T. Emergency Department Imaging Modality Effect on Surgical Management of Nephrolithiasis: A Multicenter, Randomized Clinical Trial. J Urol. 2017 Mar; 197(3 Pt 1):710-714. PMID: 27773846.
      View in: PubMed
    26. Chi T, Usawachintachit M, Mongan J, Kohi MP, Taylor A, Jha P, Chang HC, Stoller M, Goldstein R, Weinstein S. Feasibility of Antegrade Contrast-enhanced US Nephrostograms to Evaluate Ureteral Patency. Radiology. 2017 Apr; 283(1):273-279. PMID: 28234551.
      View in: PubMed
    27. Usawachintachit M, Tzou DT, Hu W, Li J, Chi T. X-ray-free Ultrasound-guided Percutaneous Nephrolithotomy: How to Select the Right Patient? Urology. 2017 Feb; 100:38-44. PMID: 27720776.
      View in: PubMed
    28. Sanford TH, Myers F, Chi T, Bagga HS, Taylor AG, Stoller ML. Emphysematous pyelonephritis: the impact of urolithiasis on disease severity. Transl Androl Urol. 2016 Oct; 5(5):774-779. PMID: 27785435.
      View in: PubMed
    29. Filippou P, Odisho A, Ramaswamy K, Usawachintachit M, Hu W, Li J, Chi T. Using an abdominal phantom to teach urology residentes ultrasound-guided percutaneous needle placement. Int Braz J Urol. 2016 Jul-Aug; 42(4):717-26. PMID: 27564282; PMCID: PMC5006767.
    30. Usawachintachit M, Masic S, Allen IE, Li J, Chi T. Adopting Ultrasound Guidance for Prone Percutaneous Nephrolithotomy: Evaluating the Learning Curve for the Experienced Surgeon. J Endourol. 2016 08; 30(8):856-63. PMID: 27150671; PMCID: PMC4964751 [Available on 08/01/17].
    31. Chi T, Usawachintachit M, Filippou P, Bayne D, Hu W, Chang H, Xia L, Chen Q, Xue W, He H, Long Q, Arsovska O, Taylor E, Paterson R, Sur RL, Chew B, Stoller ML, Li J. Significant differences in struvite and cystine stone frequency seen among Chinese nephrolithiasis patients living in North America compared to those living in China. Transl Androl Urol. 2016 Jun; 5(3):375-80. PMID: 27298786; PMCID: PMC4893518.
    32. Usawachintachit M, Masic S, Chang HC, Allen IE, Chi T. Ultrasound Guidance to Assist Percutaneous Nephrolithotomy Reduces Radiation Exposure in Obese Patients. Urology. 2016 Dec; 98:32-38. PMID: 27112513.
      View in: PubMed
    33. Truesdale MD, Elmer-Dewitt M, Sandri M, Schmidt B, Metzler I, Gadzinski A, Stoller ML, Chi T. Methylene Blue Injection as an Alternative to Antegrade Nephrostography to Assess Urinary Obstruction After Percutaneous Nephrolithotomy. J Endourol. 2016 Apr; 30(4):476-82. PMID: 26732844; PMCID: PMC4939449 [Available on 04/01/17].
    34. Chi T, Masic S, Li J, Usawachintachit M. Ultrasound Guidance for Renal Tract Access and Dilation Reduces Radiation Exposure during Percutaneous Nephrolithotomy. Adv Urol. 2016; 2016:3840697. PMID: 27042176; PMCID: PMC4793096.
    35. Chu C, Masic S, Usawachintachit M, Hu W, Yang W, Stoller M, Li J, Chi T. Ultrasound-Guided Renal Access for Percutaneous Nephrolithotomy: A Description of Three Novel Ultrasound-Guided Needle Techniques. J Endourol. 2016 Feb; 30(2):153-8. PMID: 26414304; PMCID: PMC4761800 [Available on 02/01/17].
    36. Chi T. Editorial Comment. Urology. 2015 Nov; 86(5):921. PMID: 26590037; PMCID: PMC4966653.
    37. Hsi RS, Spieker AJ, Stoller ML, Jacobs DR, Reiner AP, McClelland RL, Kahn AJ, Chi T, Szklo M, Sorensen MD. Coronary Artery Calcium Score and Association with Recurrent Nephrolithiasis: The Multi-Ethnic Study of Atherosclerosis. J Urol. 2016 Apr; 195(4 Pt 1):971-6. PMID: 26454103; PMCID: PMC4966606.
    38. Ramaswamy K, Killilea DW, Kapahi P, Kahn AJ, Chi T, Stoller ML. The elementome of calcium-based urinary stones and its role in urolithiasis. Nat Rev Urol. 2015 Oct; 12(10):543-57. PMID: 26334088; PMCID: PMC4875766.
    39. Selekman RE, Harris CR, Filippou P, Chi T, Alwaal A, Blaschko SD, Breyer BN. Validation of a Visual Prostate Symptom Score in Men With Lower Urinary Tract Symptoms in a Health Safety Net Hospital. Urology. 2015 Aug; 86(2):354-8. PMID: 26169006; PMCID: PMC4551494.
    40. Killilea DW, Westropp JL, Shiraki R, Mellema M, Larsen J, Kahn AJ, Kapahi P, Chi T, Stoller ML. Elemental Content of Calcium Oxalate Stones from a Canine Model of Urinary Stone Disease. PLoS One. 2015; 10(6):e0128374. PMID: 26066810.
      View in: PubMed
    41. Chi T, Kim MS, Lang S, Bose N, Kahn A, Flechner L, Blaschko SD, Zee T, Muteliefu G, Bond N, Kolipinski M, Fakra SC, Mandel N, Miller J, Ramanathan A, Killilea DW, Br├╝ckner K, Kapahi P, Stoller ML. A Drosophila model identifies a critical role for zinc in mineralization for kidney stone disease. PLoS One. 2015; 10(5):e0124150. PMID: 25970330; PMCID: PMC4430225.
    42. Tran G, Ramaswamy K, Chi T, Meng M, Freise C, Stoller ML. Laparoscopic Nephrectomy with Autotransplantation: Safety, Efficacy and Long-Term Durability. J Urol. 2015 Sep; 194(3):738-743. PMID: 25801764; PMCID: PMC4966611.
    43. Ramaswamy K, Marx V, Laser D, Kenny T, Chi T, Bailey M, Sorensen MD, Grubbs RH, Stoller ML. Targeted microbubbles: a novel application for the treatment of kidney stones. BJU Int. 2015 Jul; 116(1):9-16. PMID: 25402588; PMCID: PMC4433869.
    44. Bayne D, Taylor ER, Hampson L, Chi T, Stoller ML. Determinants of nephrostomy tube dislodgment after percutaneous nephrolithotomy. J Endourol. 2015 Mar; 29(3):289-92. PMID: 25387085; PMCID: PMC4516952.
    45. Masterson JH, Woo JR, Chang DC, Chi T, L'Esperance JO, Stoller ML, Sur RL. Dyslipidemia is associated with an increased risk of nephrolithiasis. Urolithiasis. 2015 Feb; 43(1):49-53. PMID: 25193087; PMCID: PMC4527684.
    46. Chi T, Taylor E, Stoller ML. Treating the cystine stone former presents a singular clinical challenge. Transl Androl Urol. 2014 Sep; 3(3):234. PMID: 26816770; PMCID: PMC4708580.
    47. Chi T, Taylor E, Stoller ML. Alexander Randall may have had it right after all. Transl Androl Urol. 2014 Sep; 3(3):255. PMID: 26816775; PMCID: PMC4708579.
    48. Chi T, Taylor E, Stoller ML. Looking beyond the guidelines for perioperative antibiotics in nephrolithiasis. Transl Androl Urol. 2014 Sep; 3(3):302. PMID: 26816782; PMCID: PMC4708569.
    49. Chi T, Taylor E, Stoller ML. Moderation may be the best fad diet for urinary stone disease. Transl Androl Urol. 2014 Sep; 3(3):313. PMID: 26816784; PMCID: PMC4708575.
    50. Chi T, Stoller ML. Kidney stone disease. Transl Androl Urol. 2014 Sep; 3(3):227. PMID: 26815592; PMCID: PMC4708564.
    51. Chi T, Taylor E, Stoller ML. Gastric bypass surgery patients warrant special attention for preventing urinary stones. Transl Androl Urol. 2014 Sep; 3(3):250. PMID: 26816773; PMCID: PMC4708581.
    52. Chi T, Taylor E, Stoller ML. Ureteral stents are part of an ever-expanding technology horizon. Transl Androl Urol. 2014 Sep; 3(3):320. PMID: 26815735; PMCID: PMC4708565.
    53. Chi T, Taylor E, Stoller ML. The link between metabolic syndrome and nephrolithiasis: a white whale for understanding urinary stone disease. Transl Androl Urol. 2014 Sep; 3(3):296. PMID: 26816780; PMCID: PMC4708573.
    54. Chi T, Taylor E, Stoller ML. Making sense of dietary calcium and urinary stone disease. Transl Androl Urol. 2014 Sep; 3(3):241. PMID: 26816772; PMCID: PMC4708566.
    55. Chi T, Taylor E, Stoller ML. Balancing the utility of new technology against cost in urinary stone disease. Transl Androl Urol. 2014 Sep; 3(3):328. PMID: 26816787; PMCID: PMC4708568.
    56. Chi T, Taylor E, Stoller ML. Reactive oxygen species may unite many mechanisms by which calcium oxalate stones form. Transl Androl Urol. 2014 Sep; 3(3):277. PMID: 26816776; PMCID: PMC4708570.
    57. Chi T, Taylor E, Stoller ML. The days of cost effective management for nephrolithiasis are already upon us. Transl Androl Urol. 2014 Sep; 3(3):284. PMID: 26816778; PMCID: PMC4708576.
    58. Sorensen MD, Hsi RS, Chi T, Shara N, Wactawski-Wende J, Kahn AJ, Wang H, Hou L, Stoller ML. Dietary intake of fiber, fruit and vegetables decreases the risk of incident kidney stones in women: a Women's Health Initiative report. J Urol. 2014 Dec; 192(6):1694-9. PMID: 24859445.
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    59. Sorensen MD, Chi T, Shara NM, Wang H, Hsi RS, Orchard T, Kahn AJ, Jackson RD, Miller J, Reiner AP, Stoller ML. Activity, energy intake, obesity, and the risk of incident kidney stones in postmenopausal women: a report from the Women's Health Initiative. J Am Soc Nephrol. 2014 Feb; 25(2):362-9. PMID: 24335976; PMCID: PMC3904570.
    60. Miller J, Chi T, Kapahi P, Kahn AJ, Kim MS, Hirata T, Romero MF, Dow JA, Stoller ML. Drosophila melanogaster as an emerging translational model of human nephrolithiasis. J Urol. 2013 Nov; 190(5):1648-56. PMID: 23500641.
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    61. Blaschko SD, Chi T, Miller J, Flechner L, Fakra S, Kapahi P, Kahn A, Stoller ML. Strontium substitution for calcium in lithogenesis. J Urol. 2013 Feb; 189(2):735-9. PMID: 23260568.
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    62. Taylor E, Miller J, Chi T, Stoller ML. Complications associated with percutaneous nephrolithotomy. Transl Androl Urol. 2012 Dec; 1(4):223-8. PMID: 26816715; PMCID: PMC4708158.
    63. Bagga HS, Chi T, Miller J, Stoller ML. New insights into the pathogenesis of renal calculi. Urol Clin North Am. 2013 Feb; 40(1):1-12. PMID: 23177630; PMCID: PMC4165395.
    64. Blaschko SD, Miller J, Chi T, Flechner L, Fakra S, Kahn A, Kapahi P, Stoller ML. Microcomposition of human urinary calculi using advanced imaging techniques. J Urol. 2013 Feb; 189(2):726-34. PMID: 23021997.
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    65. Kovshilovskaya B, Chi T, Miller J, Stoller ML. Systemic implications of urinary stone disease. Transl Androl Urol. 2012 Jun; 1(2):89-96. PMID: 26816692; PMCID: PMC4708212.
    66. Sorensen MD, Kahn AJ, Reiner AP, Tseng TY, Shikany JM, Wallace RB, Chi T, Wactawski-Wende J, Jackson RD, O'Sullivan MJ, Sadetsky N, Stoller ML. Impact of nutritional factors on incident kidney stone formation: a report from the WHI OS. J Urol. 2012 May; 187(5):1645-9. PMID: 22425103; PMCID: PMC4165387.
    67. Chi T, Miller J, Stoller ML. Randall plaque versus renal stone? Transl Androl Urol. 2012 Mar; 1(1):66-70. PMID: 26816689; PMCID: PMC4713222.
    68. Chi T, Stoller ML. Stones: Passing a stone in your sleep might be easier than you think. Nat Rev Urol. 2011 Aug 30; 8(10):533-4. PMID: 21878879; PMCID: PMC4165386.
    69. Le JD, Eisner BH, Tseng TY, Chi T, Stoller ML. Laterality of nephrocalcinosis in kidney stone formers with severe hypocitraturia. BJU Int. 2011 Jan; 107(1):106-10. PMID: 20590541; PMCID: PMC4165396.
    70. Mwamukonda KB, Chi T, Shindel AW, Lue TF. Androgen blockade for the treatment of high-flow priapism. J Sex Med. 2010 Jul; 7(7):2532-7. PMID: 20456623.
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    71. Chi T, Eisner BH, Berger AD, Stoller ML. An ex-vivo evaluation of the application and strength of a novel laparoscopic knot substitute device. J Endourol. 2010 Jan; 24(1):95-8. PMID: 19929424.
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    72. Smith JF, Brant WO, Fradet V, Shindel AW, Vittinghoff E, Chi T, Huang YC, Davis CB, Conti S, Lue TF. Penile sonographic and clinical characteristics in men with Peyronie's disease. J Sex Med. 2009 Oct; 6(10):2858-67. PMID: 19732312.
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    73. Chi T, Eisner B, Stoller ML. Renal arteriovenous malformation. J Urol. 2009 Sep; 182(3):1174-5. PMID: 19625031.
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    74. Stoller ML, Chi T, Eisner BH, Shami G, Gentle DL. Changes in urinary stone risk factors in hypocitraturic calcium oxalate stone formers treated with dietary sodium supplementation. J Urol. 2009 Mar; 181(3):1140-4. PMID: 19152919.
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    75. Elliott SP, McAninch JW, Chi T, Doyle SM, Master VA. Management of severe urethral complications of prostate cancer therapy. J Urol. 2006 Dec; 176(6 Pt 1):2508-13. PMID: 17085144.
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    76. Chi T, Feldstein VA, Nguyen HT. Increased echogenicity as a predictor of poor renal function in children with grade 3 to 4 hydronephrosis. J Urol. 2006 May; 175(5):1898-901. PMID: 16600795.
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    77. Master VA, Chi T, Simko JP, Weinberg V, Carroll PR. The independent impact of extended pattern biopsy on prostate cancer stage migration. J Urol. 2005 Nov; 174(5):1789-93; discussion 1793. PMID: 16217288.
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    78. Cooperberg MR, Chi T, Jad A, Cha I, Turek PJ. Variability in testis biopsy interpretation: implications for male infertility care in the era of intracytoplasmic sperm injection. Fertil Steril. 2005 Sep; 84(3):672-7. PMID: 16169401.
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