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Primak, Andrew N.

0000-0003-4349-5587

Mayo Clinic

Siemens Healthcare (United States)

Citations 4

Three‐dimensional volumetric computed tomographic scoring as an objective outcome measure for chronic rhinosinusitis: clinical correlations and comparison to Lund‐Mackay scoring
Pallanch, John F., Yu, Lifeng , DeLone, David R. , Robb, Rich, Holmes, David R. , Camp, Jon J. , Edwards, P D, Ponikau, Jens U., Dearking, Amy C., Lane, John I. , Primak, Andrew N. , Shinkle, Aaron, Frigas, Evangelo, Ocel, Joseph J., Tombers, Nicole M. , Siwani, Rizwan, Orme, Nicholas M., Reed, Kurtis B., Jerath, Nivedita U. , Dhillon, Robinder, Kita, Hirohito , Yu, Lifeng , McCollough, Cynthia H. , Hagan, John P. , Kita, H

International Forum of Allergy & Rhinology | October 8, 2013 | Volume: 3 | Issue: 12 | Pages: 963-972

10.1002/alr.21219 Get It

BackgroundWe aimed to test the hypothesis that three‐dimensional (3D) volume‐based scoring of computed tomography (CT) images of the paranasal sinuses was superior to Lund‐Mackay CT scoring of disease severity in chronic rhinosinusitis (CRS). We determined correlation between changes in CT scores (using each scoring system) with changes in other measures of disease severity (symptoms, endoscopic scoring, and quality of life) in patients with CRS treated with triamcinolone.MethodsThe study group comprised 48 adult subjects with CRS. Baseline symptoms and quality of life were assessed. Endoscopy and CT scans were performed. Patients received a single systemic dose of intramuscular triamcinolone and were reevaluated 1 month later. Strengths of the correlations between changes in CT scores and changes in CRS signs and symptoms and quality of life were determined.ResultsWe observed some variability in degree of improvement for the different symptom, endoscopic, and quality‐of‐life parameters after treatment. Improvement of parameters was significantly correlated with improvement in CT disease score using both CT scoring methods. However, volumetric CT scoring had greater correlation with these parameters than Lund‐Mackay scoring.ConclusionVolumetric scoring exhibited higher degree of correlation than Lund‐Mackay scoring when comparing improvement in CT score with improvement in score for symptoms, endoscopic exam, and quality of life in this group of patients who received beneficial medical treatment for CRS.
Dual-Source Dual-Energy CT With Additional Tin Filtration: Dose and Image Quality Evaluation in Phantoms and In Vivo
Primak, Andrew N. , Giraldo, Juan Carlos Ramírez, Eusemann, Christian D. , Schmidt, Bernhard , Kantor, Birgit, Fletcher, Joel G. , McCollough, Cynthia H.

American Journal of Roentgenology | October 21, 2010 | Volume: 195 | Issue: 5 | Pages: 1164-1174

10.2214/ajr.09.3956 Get It

Dose to Radiosensitive Organs During Routine Chest CT: Effects of Tube Current Modulation
Angel, Erin , Yaghmai, Nazanin, Jude, Cecilia M., DeMarco, John J., Cagnon, Christopher H., Goldin, Jonathan , Primak, Andrew N. , Cody, Dianna D. , Stevens, Donna M., Cagnon, Chris H., McCollough, Cynthia H. , McNitt‐Gray, Michael F.

American Journal of Roentgenology | October 20, 2009 | Volume: 193 | Issue: 5 | Pages: 1340-1345

10.2214/ajr.09.2886 Get It

Dual-Energy CT Iodine-Subtraction Virtual Unenhanced Technique to Detect Urinary Stones in an Iodine-Filled Collecting System: A Phantom Study
Takahashi, Naoki , Hartman, Robert P. , Vrtiska, Terri J., Primak, Andrew N. , Dzyubak, O. P. , Mandrekar, Jayawant N. , Kawashima, Akira , Fletcher, Joel G. , McCollough, Cynthia H. , Takahashi, Naoki

American Journal of Roentgenology | April 22, 2008 | Volume: 190 | Issue: 5 | Pages: 1169-1173

10.2214/ajr.07.3154 Get It