Publications by authors named "Ryan D Niederkohr"

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Advanced Imaging in Suspected Antenatal Pulmonary Embolism in Community Practice: Preferences, Indeterminacy, and Clinician Response.
David R Vinson, Madeline J Somers, Cydney E Middleton, Lara Zekar, Edward Qiao, Ryan D Niederkohr

Acad Emerg Med· December 2025

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Reproducibility of FDG PET/CT image-based cancer staging and standardized uptake values with simulated reduction of injected FDG dose or acquisition time.
Ryan D Niederkohr, Stephen P Hayden, James J Hamill, Judson P Jones, Joshua D Schaefferkoetter

Am J Nucl Med Mol Imaging· October 2021

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An International Survey of PET/CT Clinical Reporting.
Katherine A Zukotynski, Ryan D Niederkohr, Bennett S Greenspan, John O Prior, Heiko Schöder

J Nucl Med· April 2019

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Update 2018: 18F-FDG PET/CT and PET/MRI in Head and Neck Cancer.
Yasemin Sanli, Katherine Zukotynski, Erik Mittra, Delphine L Chen, Helen Nadel, Ryan D Niederkohr

Clin Nucl Med· December 2018

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Online Social Media Practices in Nuclear Medicine and Molecular Imaging: A Concept to Incentivize Creation of Digital and Web-Based Content.
Chadwick L Wright, Ryan D Niederkohr, Melanie U Knopp, Michael V Knopp

J Nucl Med· June 2017

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SNMMI Comment on the 2016 Society of Surgical Oncology "Choosing Wisely" Recommendation on the Use of PET/CT in Colorectal Cancer.
Katherine Zukotynski, Hossein Jadvar, Thomas Hope, Rathan M Subramaniam, Katherine Van Loon, Ryan D Niederkohr

J Nucl Med· January 2017

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99mTc-oxidronate uptake within urothelial carcinoma confirmed with SPECT/CT imaging.
Ryan D Niederkohr, Edison Chiu, Jed A Katzel

Clin Nucl Med· August 2013

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Reporting guidance for oncologic 18F-FDG PET/CT imaging.
Ryan D Niederkohr, Bennett S Greenspan, John O Prior, Heiko Schöder, Marc A Seltzer

J Nucl Med· May 2013

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(153)Sm-EDTMP appears to accumulate only trivially within peritoneal ascites.
Gene A Schreck, Ryan D Niederkohr

J Nucl Med Technol· March 2012

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Technical feasibility vs. clinical utility: a question of "can we?" vs. "should we?".
Ryan D Niederkohr

Eur J Nucl Med Mol Imaging· February 2012

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Author response: Bayesian estimation of sensitivity of temporal artery biopsies.
Ryan D Niederkohr, Leonard A Levin

Invest Ophthalmol Vis Sci· February 2012

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FDG PET/CT imaging of NUT midline carcinoma.
Ryan D Niederkohr, Michael J Cameron, Christopher A French

Clin Nucl Med· September 2011

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Extramedullary hematopoiesis within paravertebral masses demonstrating prominent sestamibi and thallium uptake.
Ryan D Niederkohr, Edison Chiu, Kenneth R K Nielsen, Margaret Maclean

Clin Nucl Med· August 2009

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Visual vignette. Sestamibi scan of an unusual cancer.
Naveen Saini, Richard T Kloos, Ryan D Niederkohr

Endocr Pract· September 2008

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Concordant findings on myocardial perfusion SPECT and cardiac magnetic resonance imaging in a patient with myocarditis.
Ryan D Niederkohr, Curt Daniels, Subha V Raman

J Nucl Cardiol· July 2008

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Uncommon causes of thyrotoxicosis.
Erik S Mittra, Ryan D Niederkohr, Cesar Rodriguez, Tarek El-Maghraby, I Ross McDougall

J Nucl Med· February 2008

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Incidental gallbladder visualization on nonhepatobiliary nuclear medicine studies: case series and review of the literature.
Ryan D Niederkohr, I Ross McDougall

Clin Nucl Med· December 2007

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FDG PET/CT detection of a gossypiboma in the neck.
Ryan D Niederkohr, Bryan J Hwang, Andrew Quon

Clin Nucl Med· November 2007

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Clinical value of including the head and lower extremities in 18F-FDG PET/CT imaging for patients with malignant melanoma.
Ryan D Niederkohr, Jarrett Rosenberg, Gregory Shabo, Andrew Quon

Nucl Med Commun· September 2007

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F-18 FDG PET as an imaging tool for detecting and staging metastatic basal-cell carcinoma.
Ryan D Niederkohr, Sherief H Gamie

Clin Nucl Med· June 2007

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No apparent alteration of F-18 FDG biodistribution when injected shortly after insulin glargine.
Ryan D Niederkohr, Andrew Quon

Clin Nucl Med· April 2007

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Reproducibility of whole-body 131I scan and serum thyrotropin and stimulated thyroglobulin values in patients studied twice after injection of recombinant human thyrotropin.
Ryan D Niederkohr, I Ross McDougall

Eur J Nucl Med Mol Imaging· March 2007

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F-18 FDG PET/CT imaging of a subcutaneous scalp metastasis from primary carcinoma of the thyroid.
Ryan D Niederkohr, Soheil S Dadras, Matthew Leavitt, I Ross McDougall

Clin Nucl Med· February 2007

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A Bayesian analysis of the true sensitivity of a temporal artery biopsy.
Ryan D Niederkohr, Leonard A Levin

Invest Ophthalmol Vis Sci· February 2007

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F-18 FDG PET/CT imaging of extramammary Paget disease of the perianal region.
Ryan D Niederkohr, Sanjiv S Gambhir

Clin Nucl Med· September 2006

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