Terry Takatoshi Yoshizumi, Ph.D., M.S.

Associate Professor in Radiology

Department:
Radiology

Division:
Radiology - General

Email:
yoshi003mcdukeedu

Mailing Address:
Box 3155 (2214 Elder Street), DUMC
Durham, NC 27710

Telephone:
919-684-2711

Training:
Ph.D., University of CincinnatiM.S., University of California at Los Angeles

Last Updated:
April 17, 2009

Research Interests:
Major research focus relates to the following areas:
New radiation detector development and evaluation;
2-D radiochromic film dosimetry in CT;
Development of 3-D dosimetry model in CT;
Application of Presage 3D dosimetry in CT;
Irradiator dosimetry;
Stack monitoring of radioactive tritium gas and radioactive iodine;
Shielding design of modern x-ray machines;
MDCT and cone-beam CT dosimetry;
Application of MOSFET technology in diagnostic radiology and interventional/cardiac cath lab;Small animal dosimetry; Breast dosimetry in tomosynthesis;
Radiation shielding calculations in accelerator facilities;
Radiation safety program administration and policy development;
Regulatory compliance;
Radiological emergency responses.

Publications:
2009 -- Pubmed # 19098206 -- Hurwitz LM, Yoshizumi TT, Goodman PC, Nelson RC, Toncheva G, Nguyen GB, Lowry C, Anderson-Evans C. Radiation dose savings for adult pulmonary embolus 64-MDCT using bismuth breast shields, lower peak kilovoltage, and automatic tube current modulation.  AJR Am J Roentgenol.  2009 Jan;192(1):244-53.

2009 -- Pubmed # 19346514 -- Marin D, Nelson RC, Samei E, Paulson EK, Ho LM, Boll DT, Delong DM, Yoshizumi TT, Schindera ST. Hypervascular Liver Tumors: Low Tube Voltage, High Tube Current Multidetector CT during Late Hepatic Arterial Phase for Detection--Initial Clinical Experience.  Radiology.  2009 Apr 3.

2009 -- Pubmed # 19188331 -- Shrimpton PC, Wall BF, Yoshizumi TT, Hurwitz LM, Goodman PC. Effective dose and dose-length product in CT.  Radiology.  2009 Feb;250(2):604-5.

2009 -- Pubmed # 19264831 -- Kim S, Yoshizumi TT, Frush DP, Anderson-Evans C, Toncheva G. Dosimetric characterisation of bismuth shields in CT: measurements and Monte Carlo simulations.  Radiat Prot Dosimetry.  2009;133(2):105-10.

2008 -- Pubmed # 18356429 -- Jaffe TA, Yoshizumi TT, Toncheva GI, Nguyen G, Hurwitz LM, Nelson RC. Early first-trimester fetal radiation dose estimation in 16-MDCT without and with automated tube current modulation.  AJR Am J Roentgenol.  2008 Apr;190(4):860-4.

2008 -- Pubmed # 19074786 -- Kim S, Yoshizumi TT, Toncheva G, Yoo S, Yin FF. COMPARISON OF RADIATION DOSES BETWEEN CONE BEAM CT AND MULTI DETECTOR CT: TLD MEASUREMENTS.  Radiat Prot Dosimetry.  2008 Dec 13.

2008 -- Pubmed # 18849682 -- Mettler FA Jr, Thomadsen BR, Bhargavan M, Gilley DB, Gray JE, Lipoti JA, McCrohan J, Yoshizumi TT, Mahesh M. Medical radiation exposure in the U.S. in 2006: preliminary results.  Health Phys.  2008 Nov;95(5):502-7.

2008 -- Pubmed # 18666818 -- De Lin M, Toncheva G, Nguyen G, Kim S, Anderson-Evans C, Johnson GA, Yoshizumi TT. Application of MOSFET detectors for dosimetry in small animal radiography using short exposure times.  Radiat Res.  2008 Aug;170(2):260-3.

2008 -- Pubmed # 18662559 -- Mettler FA Jr, Bhargavan M, Thomadsen BR, Gilley DB, Lipoti JA, Mahesh M, McCrohan J, Yoshizumi TT. Nuclear medicine exposure in the United States, 2005-2007: preliminary results.  Semin Nucl Med.  2008 Sep;38(5):384-91.

2008 -- Pubmed # 18566177 -- Mettler FA Jr, Huda W, Yoshizumi TT, Mahesh M. Effective doses in radiology and diagnostic nuclear medicine: a catalog.  Radiology.  2008 Jul;248(1):254-63.

2008 -- Pubmed # 18096533 -- Schindera ST, Nelson RC, Mukundan S Jr, Paulson EK, Jaffe TA, Miller CM, DeLong DM, Kawaji K, Yoshizumi TT, Samei E. Hypervascular liver tumors: low tube voltage, high tube current multi-detector row CT for enhanced detection--phantom study.  Radiology.  2008 Jan;246(1):125-32.

2008 -- Pubmed # 18183380 -- Gaca AM, Jaffe TA, Delaney S, Yoshizumi T, Toncheva G, Nguyen G, Frush DP. Radiation doses from small-bowel follow-through and abdomen/pelvis MDCT in pediatric Crohn disease.  Pediatr Radiol.  2008 Mar;38(3):285-91.

2008 -- Pubmed # 18212190 -- Schindera ST, Nelson RC, Toth TL, Nguyen GT, Toncheva GI, DeLong DM, Yoshizumi TT. Effect of patient size on radiation dose for abdominal MDCT with automatic tube current modulation: phantom study. AJR Am J Roentgenol. 2008 Feb;190(2):W100-5.

2008 -- Pubmed # 18094273 -- Coursey C, Frush DP, Yoshizumi T, Toncheva G, Nguyen G, Greenberg SB. Pediatric chest MDCT using tube current modulation: effect on radiation dose with breast shielding.  AJR Am J Roentgenol.  2008 Jan;190(1):W54-61.

2007 -- Pubmed # 17368219 -- Schindera ST, Nelson RC, Lee ER, Delong DM, Ngyen G, Toncheva G, Yoshizumi TT. Abdominal multislice CT for obese patients: effect on image quality and radiation dose in a phantom study. Acad Radiol. 2007 Apr;14(4):486-94.

2007 -- Pubmed # 17449779 -- Yoshizumi TT, Goodman PC, Frush DP, Nguyen G, Toncheva G, Sarder M, Barnes L. Validation of metal oxide semiconductor field effect transistor technology for organ dose assessment during CT: comparison with thermoluminescent dosimetry. AJR Am J Roentgenol. 2007 May;188(5):1332-6.

2007 -- Pubmed # 17579144 -- Hollingsworth CL, Yoshizumi TT, Frush DP, Chan FP, Toncheva G, Nguyen G, Lowry CR, Hurwitz LM. Pediatric cardiac-gated CT angiography: assessment of radiation dose. AJR Am J Roentgenol. 2007 Jul;189(1):12-8.

2007 -- Pubmed # 17515389 -- Mukundan S Jr, Wang PI, Frush DP, Yoshizumi T, Marcus J, Kloeblen E, Moore M. MOSFET dosimetry for radiation dose assessment of bismuth shielding of the eye in children.  AJR Am J Roentgenol.  2007 Jun;188(6):1648-50.

2006 -- Pubmed # 16373774 -- Jaffe TA, Nelson RC, Johnson GA, Lee ER, Yoshizumi TT, Lowry CR, Bullard AB, DeLong DM, Paulson EK. Optimization of multiplanar reformations from isotropic data sets acquired with 16-detector row helical CT scanner. Radiology. 2006 Jan;238(1):292-9.

2006 -- Pubmed # 16714665 -- Hurwitz LM, Yoshizumi TT, Reiman RE, Paulson EK, Frush DP, Nguyen GT, Toncheva GI, Goodman PC. Radiation dose to the female breast from 16-MDCT body protocols. AJR Am J Roentgenol. 2006 Jun;186(6):1718-22.

2006 -- Pubmed # 16498123 -- Hurwitz LM, Yoshizumi T, Reiman RE, Goodman PC, Paulson EK, Frush DP, Toncheva G, Nguyen G, Barnes L. Radiation dose to the fetus from body MDCT during early gestation. AJR Am J Roentgenol. 2006 Mar;186(3):871-6.

2006 -- Pubmed # 16862419 -- Frush DP, Yoshizumi T. Conventional and CT angiography in children: dosimetry and dose comparisons.  Pediatr Radiol.  2006 Jul 22.

2005 -- Pubmed # 15845791 -- Samei E, Lo JY, Yoshizumi TT, Jesneck JL, Dobbins JT 3rd, Floyd CE Jr, McAdams HP, Ravin CE. Comparative scatter and dose performance of slot-scan and full-field digital chest radiography systems. Radiology. 2005 Jun;235(3):940-9.

2003 -- Pubmed # 12702826 -- Gupta AK, Nelson RC, Johnson GA, Paulson EK, Delong DM, Yoshizumi TT. Optimization of eight-element multi-detector row helical CT technology for evaluation of the abdomen. Radiology. 2003 Jun;227(3):739-45.

2003 -- Pubmed # 12678177 -- Thomton FJ, Paulson EK, Yoshizumi TT, Frush DP, Nelson RC. Single versus multi-detector row CT: comparison of radiation doses and dose profiles. Acad Radiol. 2003 Apr;10(4):379-85.

2003 -- Pubmed # 12757315 -- Yoshizumi TT, Nelson RC. Radiation issues with multidetector row helical CT. Crit Rev Comput Tomogr. 2003;44(2):95-117.

2003 -- Pubmed # 14526095 -- Heneghan JP, McGuire KA, Leder RA, DeLong DM, Yoshizumi T, Nelson RC. Helical CT for nephrolithiasis and ureterolithiasis: comparison of conventional and reduced radiation-dose techniques. Radiology. 2003 Nov;229(2):575-80.

2003 -- Pubmed # 12540443 -- Fricke BL, Donnelly LF, Frush DP, Yoshizumi T, Varchena V, Poe SA, Lucaya J. In-plane bismuth breast shields for pediatric CT: effects on radiation dose and image quality using experimental and clinical data. AJR Am J Roentgenol. 2003 Feb;180(2):407-11.

2002 -- Pubmed # 11959701 -- Spielmann AL, Heneghan JP, Lee LJ, Yoshizumi T, Nelson RC. Decreasing the radiation dose for renal stone CT: a feasibility study of single- and multidetector CT. AJR Am J Roentgenol. 2002 May;178(5):1058-62.

2001 -- Pubmed # 11425990 -- Paulson EK, Sheafor DH, Enterline DS, McAdams HP, Yoshizumi TT. CT fluoroscopy--guided interventional procedures: techniques and radiation dose to radiologists. Radiology. 2001 Jul;220(1):161-7.

2000 -- Pubmed # 11045513 -- Yoshizumi TT. Design and development of a radioactive gas monitoring system in the positron emission tomography center. Health Phys. 2000 Nov;79(5 Suppl):S66-9.

1994 -- Pubmed # 9234327 -- Mazza SM, Yoshizumi T. 48V radionuclidic impurity in product streams from liquid cyclotron targets with titanium windows. Nucl Med Biol. 1994 May;21(4):677-9.

1990 -- Pubmed # 2231008 -- Yoshizumi TT, Suneja SK, Teal JS, Sutton AM, Collyer D. Defective parallel-hole collimator encountered in SPECT: a suggested approach to avoid potential problems. J Nucl Med. 1990 Nov;31(11):1892-3.

1989 -- Pubmed # 2917855 -- Yoshizumi TT, Chuprinko CA. Accidental CT scanning without A1 filtration and its dosimetry. Health Phys. 1989 Feb;56(2):253-4.

1989 -- Pubmed # 2762539 -- Yoshizumi TT, Suneja SK, Teal JS. Practical CT dosimetry. Radiol Technol. 1989 Jul-Aug;60(6):505-9.

1987 -- Pubmed # 3588883 -- Yoshizumi TT, Drummond KT, Freeman JO, Mullett MD. Radiation safety and protection of neonates in radiological examinations. Radiol Technol. 1987 May-Jun;58(5):405-8.

1983 -- Pubmed # 6606811 -- Cho ZH, Hilal SK, Ra JB, Hong KS, Bigler RE, Yoshizumi T, Wolf AP, Fowler JS. High-resolution circular ring positron tomograph with dichotomic sampling: Dichotom-I. Phys Med Biol. 1983 Nov;28(11):1219-34.

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