Ryan Niederkohr | Profiles RNS

Ryan Niederkohr, MD

Assistant Professor

Boston University Chobanian & Avedisian School of Medicine

Radiology

Nuclear Medicine

MD, Ohio State University
BS, University of Notre Dame

Websites

Kaiser Permanente

About Me
I completed my medical education at The Ohio State University (2003), followed by residency training in nuclear medicine at Stanford University Medical Center (2007). I joined The Permanente Medical Group in 2008. My clinical interests include diagnostic and therapeutic nuclear medicine.
Roles and Responsibilities
In addition to my clinical duties, I serve as an assistant physician-in-chief at the KP Santa Clara Medical Center.
Professional Affiliations
I am proud to have held leadership positions in the Society of Nuclear Medicine and Molecular Imaging and The American Board of Nuclear Medicine.
Hobbies and interests
My hobbies include golf, skiing and aviation.

Kaiser Permanente Santa Clara Medical Center

Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.

iCite Analysis Copy PMIDs To Clipboard

Niederkohr RD, Hayden SP, Hamill JJ, Jones JP, Schaefferkoetter JD, Chiu E. Reproducibility of FDG PET/CT image-based cancer staging and standardized uptake values with simulated reduction of injected FDG dose or acquisition time. Am J Nucl Med Mol Imaging. 2021; 11(5):428-442.View Related Profiles.

Chiu, Edison
Niederkohr, Ryan

PMID: 34754613; PMCID: PMC8569332

Zukotynski KA, Niederkohr RD, Greenspan BS, Prior JO, Schöder H, Seltzer MA, Rohren EM, Yoo DC. An International Survey of PET/CT Clinical Reporting. J Nucl Med. 2019 Apr; 60(4):478-479. PMID: 30877176

Sanli Y, Zukotynski K, Mittra E, Chen DL, Nadel H, Niederkohr RD, Subramaniam RM. Update 2018: 18F-FDG PET/CT and PET/MRI in Head and Neck Cancer. Clin Nucl Med. 2018 Dec; 43(12):e439-e452. PMID: 30394934

Wright CL, Niederkohr RD, Knopp MU, Knopp MV. Online Social Media Practices in Nuclear Medicine and Molecular Imaging: A Concept to Incentivize Creation of Digital and Web-Based Content. J Nucl Med. 2017 06; 58(6):12N-14N. PMID: 28572291

Moghbel MC, Mittra E, Gallamini A, Niederkohr R, Chen DL, Zukotynski K, Nadel H, Kostakoglu L. Response Assessment Criteria and Their Applications in Lymphoma: Part 2. J Nucl Med. 2017 Jan; 58(1):13-22. PMID: 27879369; DOI: 10.2967/jnumed.116.184242;

Zukotynski K, Jadvar H, Hope T, Subramaniam RM, Van Loon K, Varma M, Niederkohr RD. SNMMI Comment on the 2016 Society of Surgical Oncology "Choosing Wisely" Recommendation on the Use of PET/CT in Colorectal Cancer. J Nucl Med. 2017 01; 58(1):11-12. PMID: 27688471; DOI: 10.2967/jnumed.116.182584;

Meltzer C, Budayr A, Chavez A, Dlott R, Greif W, Gurushanthaiah D, Klonecke A, Lando M, Leary J, Nayak S, Niederkohr R, Park J, Savitz A, Schwartz H. Evidence-Based Workflows for Thyroid and Parathyroid Surgery. Perm J. 2016; 20(3):57-73. PMID: 27479948; PMCID: PMC4991916; DOI: 10.7812/TPP/16-035;

Moghbel MC, Kostakoglu L, Zukotynski K, Chen DL, Nadel H, Niederkohr R, Mittra E. Response Assessment Criteria and Their Applications in Lymphoma: Part 1. J Nucl Med. 2016 Jun; 57(6):928-35. PMID: 27127227; DOI: 10.2967/jnumed.115.166280;

Olcott P, Pratx G, Johnson D, Mittra E, Niederkohr R, Levin CS. Clinical evaluation of a novel intraoperative handheld gamma camera for sentinel lymph node biopsy. Phys Med. 2014 May; 30(3):340-5. PMID: 24239343

Niederkohr RD, Chiu E, Katzel JA. 99mTc-oxidronate uptake within urothelial carcinoma confirmed with SPECT/CT imaging. Clin Nucl Med. 2013 Aug; 38(8):655-7.View Related Profiles.

Chiu, Edison
Niederkohr, Ryan

PMID: 23751825; DOI: 10.1097/RLU.0b013e3182952c18;

Showing 10 of 30 results. Show More

Niederkohr RD, Greenspan BS, Prior JO, Schöder H, Seltzer MA, Zukotynski KA, Rohren EM. Reporting guidance for oncologic 18F-FDG PET/CT imaging. J Nucl Med. 2013 May; 54(5):756-61. PMID: 23575994; DOI: 10.2967/jnumed.112.112177;

Niederkohr RD. Technical feasibility vs. clinical utility: a question of "can we?" vs. "should we?". Eur J Nucl Med Mol Imaging. 2012 Feb; 39(2):260-1. PMID: 22160199; DOI: 10.1007/s00259-011-2012-9;

Niederkohr RD, Levin LA. Author response: Bayesian estimation of sensitivity of temporal artery biopsies. Invest Ophthalmol Vis Sci. 2012 Feb 01; 53(2):586. PMID: 22298152

Schreck GA, Niederkohr RD. (153)Sm-EDTMP appears to accumulate only trivially within peritoneal ascites. J Nucl Med Technol. 2012 Mar; 40(1):50-1. PMID: 22235143; DOI: 10.2967/jnmt.111.097220;

Niederkohr RD, Cameron MJ, French CA. FDG PET/CT imaging of NUT midline carcinoma. Clin Nucl Med. 2011 Sep; 36(9):e124-6. PMID: 21825839; DOI: 10.1097/RLU.0b013e31821c9a23;

Niederkohr RD, Chiu E, Nielsen KR, Maclean M. Extramedullary hematopoiesis within paravertebral masses demonstrating prominent sestamibi and thallium uptake. Clin Nucl Med. 2009 Aug; 34(8):506-7.View Related Profiles.

Chiu, Edison
Niederkohr, Ryan

PMID: 19617727; DOI: 10.1097/RLU.0b013e3181abb7a6;

Saini N, Kloos RT, Niederkohr RD. Visual vignette. Sestamibi scan of an unusual cancer. Endocr Pract. 2008 Sep; 14(6):800. PMID: 18996806

Niederkohr RD, Daniels C, Raman SV. Concordant findings on myocardial perfusion SPECT and cardiac magnetic resonance imaging in a patient with myocarditis. J Nucl Cardiol. 2008 May-Jun; 15(3):466-8. PMID: 18513653

Mittra ES, Niederkohr RD, Rodriguez C, El-Maghraby T, McDougall IR. Uncommon causes of thyrotoxicosis. J Nucl Med. 2008 Feb; 49(2):265-78. PMID: 18199610; DOI: 10.2967/jnumed.107.041202;

Niederkohr RD, McDougall IR. Incidental gallbladder visualization on nonhepatobiliary nuclear medicine studies: case series and review of the literature. Clin Nucl Med. 2007 Dec; 32(12):915-9. PMID: 18030040

Niederkohr RD, Hwang BJ, Quon A. FDG PET/CT detection of a gossypiboma in the neck. Clin Nucl Med. 2007 Nov; 32(11):893-5. PMID: 18075434

Niederkohr RD, Rosenberg J, Shabo G, Quon A. Clinical value of including the head and lower extremities in 18F-FDG PET/CT imaging for patients with malignant melanoma. Nucl Med Commun. 2007 Sep; 28(9):688-95. PMID: 17667747

Mittra E, Vasanawala M, Niederkohr R, Rodriguez C, Segall G. A case of three synchronous primary tumors demonstrated by F-18 FDG PET. Clin Nucl Med. 2007 Aug; 32(8):666-7. PMID: 17667450

Niederkohr RD, Gamie SH. F-18 FDG PET as an imaging tool for detecting and staging metastatic basal-cell carcinoma. Clin Nucl Med. 2007 Jun; 32(6):491-2. PMID: 17515767

Niederkohr RD, Quon A. No apparent alteration of F-18 FDG biodistribution when injected shortly after insulin glargine. Clin Nucl Med. 2007 Apr; 32(4):302-3. PMID: 17413580

Niederkohr RD, Dadras SS, Leavitt M, McDougall IR. F-18 FDG PET/CT imaging of a subcutaneous scalp metastasis from primary carcinoma of the thyroid. Clin Nucl Med. 2007 Feb; 32(2):162-4. PMID: 17242580

Niederkohr RD, Levin LA. A Bayesian analysis of the true sensitivity of a temporal artery biopsy. Invest Ophthalmol Vis Sci. 2007 Feb; 48(2):675-80. PMID: 17251465

Niederkohr RD, McDougall IR. Reproducibility of whole-body 131I scan and serum thyrotropin and stimulated thyroglobulin values in patients studied twice after injection of recombinant human thyrotropin. Eur J Nucl Med Mol Imaging. 2007 Mar; 34(3):363-7. PMID: 17021814

Niederkohr RD, Gambhir SS. F-18 FDG PET/CT imaging of extramammary Paget disease of the perianal region. Clin Nucl Med. 2006 Sep; 31(9):561-3. PMID: 16921286

Niederkohr RD, Levin LA. Management of the patient with suspected temporal arteritis a decision-analytic approach. Ophthalmology. 2005 May; 112(5):744-56. PMID: 15878052

This graph shows the total number of publications by year, by first, middle/unknown, or last author.

Bar chart showing 30 publications over 13 distinct years, with a maximum of 8 publications in 2007

Bar chart showing 30 publications over 13 distinct years, with a maximum of 8 publications in 2007

Year	Publications
2005	1
2006	2
2007	8
2008	3
2009	1
2011	1
2012	3
2013	3
2016	4
2017	1
2018	1
2019	1
2021	1

Contact for Mentoring:

700 Lawrence Expy, 1st Floor Dept 120
Santa Clara CA 95051
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617.638.6610

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Chiu, Edison

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