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Simon Lennartz, Ph.D., M.D.

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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.
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  1. Lennartz S, Große Hokamp N, Zäske C, Zopfs D, Bratke G, Glauner A, Maintz D, Persigehl T, Chang DH, Hickethier T. Virtual monoenergetic images preserve diagnostic assessability in contrast media reduced abdominal spectral detector CT. Br J Radiol. 2020 Jul 24; 20200340. PMID: 32644824.
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  2. Zopfs D, Bousabarah K, Lennartz S, Santos DPD, Schlaak M, Theurich S, Reimer RP, Maintz D, Haneder S, Große Hokamp N. Evaluating body composition by combining quantitative spectral detector computed tomography and deep learning-based image segmentation. Eur J Radiol. 2020 Jul 12; 130:109153. PMID: 32717577.
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  3. Laukamp KR, Lennartz S, Hashmi A, Obmann M, Ho V, Große Hokamp N, Graner FP, Gilkeson R, Persigehl T, Gupta A, Ramaiya N. Iodine accumulation of the liver in patients treated with amiodarone can be unmasked using material decomposition from multiphase spectral-detector CT. Sci Rep. 2020 Apr 24; 10(1):6994. PMID: 32332860.
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  4. Zopfs D, Lennartz S, Pennig L, Glauner A, Abdullayev N, Bremm J, Große Hokamp N, Persigehl T, Kabbasch C, Borggrefe J, Laukamp KR. Virtual monoenergetic images and post-processing algorithms effectively reduce CT artifacts from intracranial aneurysm treatment. Sci Rep. 2020 Apr 20; 10(1):6629. PMID: 32313094.
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  5. Laukamp KR, Tirumani SH, Lennartz S, Hokamp NG, Gupta A, Pennig L, Persigehl T, Gilkeson R, Ramaiya N. Evaluation of equivocal small cystic pancreatic lesions with spectral-detector computed tomography. Acta Radiol. 2020 Apr 19; 284185120917119. PMID: 32306744.
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  6. Lennartz S, Zopfs D, Nobis A, Paquet S, Hoyer UCI, Zäske C, Goertz L, Kabbasch C, Laukamp KR, Große Hokamp N, Galldiks N, Borggrefe J. MRI Follow-up of Astrocytoma: Automated Coregistration and Color-Coding of FLAIR Sequences Improves Diagnostic Accuracy With Comparable Reading Time. J Magn Reson Imaging. 2020 Apr 04. PMID: 32246803.
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  7. Zopfs D, Lennartz S, Zaeske C, Merkt M, Laukamp KR, Reimer RP, Maintz D, Borggrefe J, Grosse Hokamp N. Phantomless assessment of volumetric bone mineral density using virtual non-contrast images from spectral detector computed tomography. Br J Radiol. 2020 May 01; 93(1109):20190992. PMID: 32101453.
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  8. Lennartz S, Zopfs D, Abdullayev N, Bratke G, Le Blanc M, Slebocki K, Wagner A, Wybranski C, Wahba R, Maintz D, Große Hokamp N, Persigehl T. Iodine overlays to improve differentiation between peritoneal carcinomatosis and benign peritoneal lesions. Eur Radiol. 2020 Jul; 30(7):3968-3976. PMID: 32125516.
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  9. Pennig L, Wagner A, Weiss K, Lennartz S, Grunz JP, Maintz D, Laukamp KR, Hickethier T, Naehle CP, Bunck AC, Doerner J. Correction to: Imaging of the pulmonary vasculature in congenital heart disease without gadolinium contrast: Intraindividual comparison of a novel Compressed SENSE accelerated 3D modified REACT with 4D contrast-enhanced magnetic resonance angiography. J Cardiovasc Magn Reson. 2020 Feb 21; 22(1):16. PMID: 32085782.
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  10. Lennartz S, Diederich S, Doehn C, Gebauer B, Grünwald V, Notohamiprodjo M, Sommer W, Schlemmer HP, Persigehl T. Radiological Monitoring of Modern Immunotherapy: A Novel Challenge for Interdisciplinary Patient Care. Rofo. 2020 Mar; 192(3):235-245. PMID: 31994155.
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  11. Pennig L, Wagner A, Weiss K, Lennartz S, Grunz JP, Maintz D, Laukamp KR, Hickethier T, Naehle CP, Bunck AC, Doerner J. Imaging of the pulmonary vasculature in congenital heart disease without gadolinium contrast: Intraindividual comparison of a novel Compressed SENSE accelerated 3D modified REACT with 4D contrast-enhanced magnetic resonance angiography. J Cardiovasc Magn Reson. 2020 01 23; 22(1):8. PMID: 31969137.
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  12. Laukamp KR, Große Hokamp N, Alabar O, Obmann VC, Lennartz S, Zopfs D, Gilkeson R, Ramaiya N, Gupta A. Metal artifacts from sternal wires: evaluation of virtual monoenergetic images from spectral-detector CT for artifact reduction. Clin Imaging. 2020 Apr; 60(2):249-256. PMID: 31968284.
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  13. Persigehl T, Lennartz S, Schwartz LH. iRECIST: how to do it. Cancer Imaging. 2020 Jan 03; 20(1):2. PMID: 31900236.
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  14. Laukamp KR, Lennartz S, Ho V, Große Hokamp N, Zopfs D, Gupta A, Graner FP, Borggrefe J, Gilkeson R, Ramaiya N. Evaluation of the liver with virtual non-contrast: single institution study in 149 patients undergoing TAVR planning. Br J Radiol. 2020 Feb 01; 93(1106):20190701. PMID: 31825655.
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  15. Laukamp KR, Ho V, Obmann VC, Herrmann K, Gupta A, Borggrefe J, Lennartz S, Große Hokamp N, Ramaiya N. Virtual non-contrast for evaluation of liver parenchyma and vessels: results from 25 patients using multi-phase spectral-detector CT. Acta Radiol. 2020 Aug; 61(8):1143-1152. PMID: 31856581.
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  16. Große Hokamp N, Lennartz S, Salem J, Pinto Dos Santos D, Heidenreich A, Maintz D, Haneder S. Dose independent characterization of renal stones by means of dual energy computed tomography and machine learning: an ex-vivo study. Eur Radiol. 2020 Mar; 30(3):1397-1404. PMID: 31773296.
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  17. Hickethier T, Kroeger JR, Lennartz S, Doerner J, Maintz D, Chang DH. Venous-phase chest CT with reduced contrast medium dose: Utilization of spectral low keV monoenergetic images improves image quality. Eur J Radiol. 2020 Jan; 122:108756. PMID: 31786505.
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  18. Laukamp KR, Zopfs D, Wagner A, Lennartz S, Pennig L, Borggrefe J, Ramaiya N, Große Hokamp N. CT artifacts from port systems: Virtual monoenergetic reconstructions from spectral-detector CT reduce artifacts and improve depiction of surrounding tissue. Eur J Radiol. 2019 Dec; 121:108733. PMID: 31739270.
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  19. Lennartz S, Große Hokamp N, Abdullayev N, Le Blanc M, Iuga AI, Bratke G, Zopfs D, Maintz D, Borggrefe J, Persigehl T. Diagnostic value of spectral reconstructions in detecting incidental skeletal muscle metastases in CT staging examinations. Cancer Imaging. 2019 Jul 17; 19(1):50. PMID: 31315666.
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  20. El Kayal N, Lennartz S, Ekdawi S, Holz J, Slebocki K, Haneder S, Wybranski C, Mohallel A, Eid M, Grüll H, Persigehl T, Borggrefe J, Maintz D, Heneweer C. Value of spectral detector computed tomography for assessment of pancreatic lesions. Eur J Radiol. 2019 Sep; 118:215-222. PMID: 31439245.
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  21. Zopfs D, Laukamp KR, Paquet S, Lennartz S, Pinto Dos Santos D, Kabbasch C, Bunck A, Schlamann M, Borggrefe J. Follow-up MRI in multiple sclerosis patients: automated co-registration and lesion color-coding improves diagnostic accuracy and reduces reading time. Eur Radiol. 2019 Dec; 29(12):7047-7054. PMID: 31201526.
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  22. Lennartz S, Abdullayev N, Zopfs D, Borggrefe J, Neuhaus VF, Persigehl T, Haneder S, Große Hokamp N. Intra-individual consistency of spectral detector CT-enabled iodine quantification of the vascular and renal blood pool. Eur Radiol. 2019 Dec; 29(12):6581-6590. PMID: 31175416.
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  23. Zopfs D, Laukamp KR, Pinto Dos Santos D, Sokolowski M, Große Hokamp N, Maintz D, Borggrefe J, Persigehl T, Lennartz S. Low-keV virtual monoenergetic imaging reconstructions of excretory phase spectral dual-energy CT in patients with urothelial carcinoma: A feasibility study. Eur J Radiol. 2019 Jul; 116:135-143. PMID: 31153554.
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  24. Laukamp KR, Lennartz S, Neuhaus VF, Große Hokamp N, Rau R, Le Blanc M, Abdullayev N, Mpotsaris A, Maintz D, Borggrefe J. Correction to: CT metal artifacts in patients with total hip replacements: for artifact reduction monoenergetic reconstructions and post-processing algorithms are both efficient but not similar. Eur Radiol. 2019 02; 29(2):1062. PMID: 29992385.
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  25. Laukamp KR, Zopfs D, Lennartz S, Pennig L, Maintz D, Borggrefe J, Große Hokamp N. Metal artifacts in patients with large dental implants and bridges: combination of metal artifact reduction algorithms and virtual monoenergetic images provides an approach to handle even strongest artifacts. Eur Radiol. 2019 Aug; 29(8):4228-4238. PMID: 30649598.
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  26. Lennartz S, Le Blanc M, Zopfs D, Große Hokamp N, Abdullayev N, Laukamp KR, Haneder S, Borggrefe J, Maintz D, Persigehl T. Dual-Energy CT-derived Iodine Maps: Use in Assessing Pleural Carcinomatosis. Radiology. 2019 03; 290(3):796-804. PMID: 30644812.
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  27. Neuhaus V, Grosse Hokamp N, Zopfs D, Laukamp K, Lennartz S, Abdullayev N, Maintz D, Borggrefe J. Reducing artifacts from total hip replacements in dual layer detector CT: Combination of virtual monoenergetic images and orthopedic metal artifact reduction. Eur J Radiol. 2019 Feb; 111:14-20. PMID: 30691660.
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  28. Borggrefe J, Neuhaus VF, Le Blanc M, Grosse Hokamp N, Maus V, Mpotsaris A, Lennartz S, Pinto Dos Santos D, Maintz D, Abdullayev N. Accuracy of iodine density thresholds for the separation of vertebral bone metastases from healthy-appearing trabecular bone in spectral detector computed tomography. Eur Radiol. 2019 Jun; 29(6):3253-3261. PMID: 30523450.
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  29. Lennartz S, Laukamp KR, Neuhaus V, Große Hokamp N, Le Blanc M, Maus V, Kabbasch C, Mpotsaris A, Maintz D, Borggrefe J. Dual-layer detector CT of the head: Initial experience in visualization of intracranial hemorrhage and hypodense brain lesions using virtual monoenergetic images. Eur J Radiol. 2018 Nov; 108:177-183. PMID: 30396652.
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  30. Zopfs D, Lennartz S, Laukamp K, Große Hokamp N, Mpotsaris A, Maintz D, Borggrefe J, Neuhaus V. Corrigendum to "Improved depiction of atherosclerotic carotid artery stenosis in virtual monoenergetic reconstructions of venous phase dual-layer computed tomography in comparison to polyenergetic reconstructions" [Eur. J. Radiol. 100 (March) (2018) 36-42]. Eur J Radiol. 2018 09; 106:209. PMID: 30031621.
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  31. Neuhaus V, Lennartz S, Abdullayev N, Große Hokamp N, Shapira N, Kafri G, Holz JA, Krug B, Hellmich M, Maintz D, Borggrefe J. Bone marrow edema in traumatic vertebral compression fractures: Diagnostic accuracy of dual-layer detector CT using calcium suppressed images. Eur J Radiol. 2018 Aug; 105:216-220. PMID: 30017283.
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  32. Laukamp KR, Lennartz S, Neuhaus VF, Große Hokamp N, Rau R, Le Blanc M, Abdullayev N, Mpotsaris A, Maintz D, Borggrefe J. CT metal artifacts in patients with total hip replacements: for artifact reduction monoenergetic reconstructions and post-processing algorithms are both efficient but not similar. Eur Radiol. 2018 Nov; 28(11):4524-4533. PMID: 29725834.
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  33. Hickethier T, Iuga AI, Lennartz S, Hauger M, Byrtus J, Luetkens JA, Haneder S, Maintz D, Doerner J. Virtual Monoenergetic Images From a Novel Dual-Layer Spectral Detector Computed Tomography Scanner in Portal Venous Phase: Adjusted Window Settings Depending on Assessment Focus Are Essential for Image Interpretation. J Comput Assist Tomogr. 2018 May/Jun; 42(3):350-356. PMID: 29369944.
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  34. Zopfs D, Lennartz S, Laukamp K, Große Hokamp N, Mpotsaris A, Maintz D, Borggrefe J, Neuhaus V. Improved depiction of atherosclerotic carotid artery stenosis in virtual monoenergetic reconstructions of venous phase dual-layer computed tomography in comparison to polyenergetic reconstructions. Eur J Radiol. 2018 Mar; 100:36-42. PMID: 29496077.
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  35. Burghartz M, Lennartz S, Schweinlin M, Hagen R, Kleinsasser N, Hackenberg S, Steußloff G, Scherzad A, Radeloff K, Ginzkey C, Walles H, Metzger M. Development of Human Salivary Gland-Like Tissue In Vitro. Tissue Eng Part A. 2018 02; 24(3-4):301-309. PMID: 28783453.
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  36. Rogacev KS, Heine GH, Silbernagel G, Kleber ME, Seiler S, Emrich I, Lennartz S, Werner C, Zawada AM, Fliser D, Böhm M, März W, Scharnagl H, Laufs U. PCSK9 Plasma Concentrations Are Independent of GFR and Do Not Predict Cardiovascular Events in Patients with Decreased GFR. PLoS One. 2016; 11(1):e0146920. PMID: 26799206.
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  37. Bolignano D, Lennartz S, Leonardis D, D'Arrigo G, Tripepi R, Emrich IE, Mallamaci F, Fliser D, Heine G, Zoccali C. High estimated pulmonary artery systolic pressure predicts adverse cardiovascular outcomes in stage 2-4 chronic kidney disease. Kidney Int. 2015 Jul; 88(1):130-6. PMID: 25692957.
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Funded by the NIH National Center for Advancing Translational Sciences through its Clinical and Translational Science Awards Program, grant number UL1TR002541.