Use of Model-Based Iterative Reconstruction (MBIR) in reduced-dose CT for routine follow-up of patients with malignant lymphoma: dose savings, image quality and phantom study

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• 作者：Edouard Hérin ; Fran?ois Gardavaud ; Mélanie Chiaradia…
• 关键词：Computed tomography ; Radiation dosage ; Image processing ; computer ; assisted ; Lymphoma ; Image enhancement
• 刊名：European Radiology
• 出版年：2015
• 出版时间：August 2015
• 年：2015
• 卷：25
• 期：8
• 页码：2362-2370
• 全文大小：551 KB
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  12.Recher C, Coiffier B, Haioun C et al (2011) Intensified chemotherapy with ACVBP plus rituximab versus standard CHOP plus rituximab for the treatment of diffuse large B-cell lymphoma (LNH03-2B): an open-label randomised phase 3 trial. Lancet 378:1858-867PubMed View Article
  13.Dreyling M, Thieblemont C, Gallamini A et al (2013) ESMO Consensus conferences: guidelines on malignant lymphoma. part 2: marginal zone lymphoma, mantle cell lymphoma, peripheral T-cell lymphoma. Ann Oncol. doi:10.-093/?annonc/?mds643
  14.Tilly H, Vitolo U, Walewski J et al (2012) Diffuse large B-cell lymphoma (DLBCL): ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up. Ann Oncol 23:vii78–vii82PubMed View Article
  15.Zelenetz AD, Gordon LI, Wierda WG et al (2014) Non-Hodgkin's lymphomas, version 4.2014. J Natl Compr Cancer Netw 12:1282-303
  16.Chalaye J, Luciani A, Enache C et al (2014) Clinical impact of contrast-enhanced computed tomography combined with low-dose F-fluorodeoxyglucose positron emission tomography/computed tomography on routine lymphoma patient management. Leuk Lymphoma. doi:10.-109/-0428194.-014.-00761 PubMed
  17.Cheson BD, Fisher RI, Barrington SF et al (2014) Recommendations for initial evaluation, staging, and response assessment of Hodgkin and non-Hodgkin lymphoma: the Lugano classification. J Clin Oncol. doi:10.-200/?jco.-013.-4.-800 PubMed Central
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• 作者单位：Edouard Hérin (1) (2)
  Fran?ois Gardavaud (1)
  Mélanie Chiaradia (1) (2)
  Pauline Beaussart (1)
  Philippe Richard (3)
  Madeleine Cavet (1) (2)
  Jean-Fran?ois Deux (1) (2)
  Corinne Haioun (2) (4)
  Emmanuel Itti (2) (5)
  Alain Rahmouni (1) (2)
  Alain Luciani (1) (2) (6) (7)
  
  1. AP-HP, H?pitaux Universitaires Henri Mondor, Imagerie Médicale, Créteil, 94010, France
  2. Faculté de Médecine, Université Paris Est Créteil, Créteil, 94010, France
  3. GE Healthcare France, Buc, France
  4. AP-HP, H?pitaux Universitaires Henri Mondor, Hémopathies Lympho?des, Créteil, 94010, France
  5. AP-HP, H?pitaux Universitaires Henri Mondor, Médecine Nucléaire, Créteil, 94010, France
  6. INSERM Unité U 955, Equipe 18, Créteil, 94010, France
  7. AP-HP, Groupe Henri Mondor Albert Chenevier, Imagerie Médicale, CHU Henri Mondor, 51 Avenue du Maréchal de Lattre de Tassigny, 94010, Créteil Cedex, France
  
• 刊物类别：Medicine
• 刊物主题：Medicine & Public Health
  Imaging and Radiology
  Diagnostic Radiology
  Interventional Radiology
  Neuroradiology
  Ultrasound
  Internal Medicine
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-1084

文摘

Objectives To evaluate both in vivo and in phantom studies, dose reduction, and image quality of body CT reconstructed with model-based iterative reconstruction (MBIR), performed during patient follow-ups for lymphoma. Methods This study included 40 patients (mean age 49?years) with lymphoma. All underwent reduced-dose CT during follow-up, reconstructed using MBIR or 50?% advanced statistical iterative reconstruction (ASIR). All had previously undergone a standard dose CT with filtered back projection (FBP) reconstruction. The volume CT dose index (CTDIvol), the density measures in liver, spleen, fat, air, and muscle, and the image quality (noise and signal to noise ratio, SNR) (ANOVA) observed using standard or reduced-dose CT were compared both in patients and a phantom study (Catphan 600) (Kruskal Wallis). Results The CTDIvol was decreased on reduced-dose body CT (4.06?mGy vs. 15.64?mGy p-lt;-.0001). SNR was higher in reduced-dose CT reconstructed with MBIR than in 50?% ASIR or than standard dose CT with FBP (patients, p?≤-.01; phantoms, p--.003). Low contrast detectability and spatial resolution in phantoms were not altered on MBIR-reconstructed CT (p?≥-.11). Conclusion Reduced-dose CT with MBIR reconstruction can decrease radiation dose delivered to patients with lymphoma, while keeping an image quality similar to that obtained on standard-dose CT. Key Points -In lymphoma patients, CT dose reduction is a major concern. -Reduced-dose body CT provides a fourfold radiation dose reduction. -Optimized CT reconstruction techniques (MBIR) can maintain image quality.