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Khalid V, Schønheyder HC, Larsen LH, Nielsen PT, Kappel A, Thomsen TR, Aleksyniene R, Lorenzen J, Ørsted I, Simonsen O, Jordal PL, Rasmussen S. Multidisciplinary Diagnostic Algorithm for Evaluation of Patients Presenting with a Prosthetic Problem in the Hip or Knee: A Prospective Study. Diagnostics (Basel) 2020; 10:diagnostics10020098. [PMID: 32053936 PMCID: PMC7168188 DOI: 10.3390/diagnostics10020098] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 01/28/2020] [Accepted: 02/04/2020] [Indexed: 12/17/2022] Open
Abstract
The predominant indications for revision surgery after total hip (THA) or knee arthroplasty (TKA) are an aseptic failure (AF) and prosthetic joint infection (PJI). Accurate diagnosis is crucial. Therefore, we evaluated prospectively a multidisciplinary diagnostic algorithm including multi-modal radionucleid imaging (RNI) and extended microbiological diagnostics. If the surgeon suspected PJI or AF, revision surgery was performed with multiple samples obtained in parallel for special culture procedures and later molecular analyses. Alternatively, if the underlying cause was not evident, RNI was scheduled comprising 99Tc—HDP SPECT/CT, 111In-labeled white blood cells combined with 99Tc-nanocoll bone marrow SPECT/CT, and 18F-FDG PET/CT. A multidisciplinary clinical team made a recommendation on the indication for a diagnostic procedure guided by RNI images or revision surgery. A total of 156 patients with 163 arthroplasties were included. Fifty-five patients underwent RNI. In all, 118 revision surgeries were performed in 112 patients: 71 on the indication of AF and 41 revision of PJI. Thirty-four patients were concluded with chronic pain, and revision surgery refrained. The effective median follow-up period was 13 months. A structured approach offered by the algorithm was useful for the clinician in the evaluation of patients with a failing TKA or THA. Surgical revision was possibly obviated in approximately 20% of patients where an explanation or cause of failure was not found. The algorithm served as an effective tool.
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Affiliation(s)
- Vesal Khalid
- Orthopaedic Research Unit, Aalborg University Hospital, 9000 Aalborg, Denmark (A.K.); (O.S.); (S.R.)
- Department of Orthopaedic Surgery, Aalborg University Hospital, 9000 Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, 9000 Aalborg, Denmark;
- Correspondence: ; Tel.: +45-31336988
| | - Henrik Carl Schønheyder
- Department of Clinical Medicine, Aalborg University, 9000 Aalborg, Denmark;
- Department of Clinical Microbiology, Aalborg University Hospital, 9000 Aalborg, Denmark;
| | - Lone Heimann Larsen
- Department of Clinical Microbiology, Aalborg University Hospital, 9000 Aalborg, Denmark;
- Center for Microbial Communities, Department of Biotechnology, Chemistry and Environmental Engineering, Aalborg University, 9000 Aalborg, Denmark;
| | - Poul Torben Nielsen
- Orthopaedic Research Unit, Aalborg University Hospital, 9000 Aalborg, Denmark (A.K.); (O.S.); (S.R.)
- Department of Orthopaedic Surgery, Aalborg University Hospital, 9000 Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, 9000 Aalborg, Denmark;
| | - Andreas Kappel
- Orthopaedic Research Unit, Aalborg University Hospital, 9000 Aalborg, Denmark (A.K.); (O.S.); (S.R.)
- Department of Orthopaedic Surgery, Aalborg University Hospital, 9000 Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, 9000 Aalborg, Denmark;
| | - Trine Rolighed Thomsen
- Center for Microbial Communities, Department of Biotechnology, Chemistry and Environmental Engineering, Aalborg University, 9000 Aalborg, Denmark;
- Danish Technological Institute, Medical Biotechnology, 8000 Aarhus C, Denmark; (J.L.); (P.L.J.)
| | - Ramune Aleksyniene
- Department of Nuclear Medicine, Aalborg University Hospital, 9000 Aalborg, Denmark;
| | - Jan Lorenzen
- Danish Technological Institute, Medical Biotechnology, 8000 Aarhus C, Denmark; (J.L.); (P.L.J.)
| | - Iben Ørsted
- Department of Infectious Disease, Aalborg University Hospital, 9000 Aalborg, Denmark;
| | - Ole Simonsen
- Orthopaedic Research Unit, Aalborg University Hospital, 9000 Aalborg, Denmark (A.K.); (O.S.); (S.R.)
- Department of Orthopaedic Surgery, Aalborg University Hospital, 9000 Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, 9000 Aalborg, Denmark;
| | - Peter Lüttge Jordal
- Danish Technological Institute, Medical Biotechnology, 8000 Aarhus C, Denmark; (J.L.); (P.L.J.)
| | - Sten Rasmussen
- Orthopaedic Research Unit, Aalborg University Hospital, 9000 Aalborg, Denmark (A.K.); (O.S.); (S.R.)
- Department of Orthopaedic Surgery, Aalborg University Hospital, 9000 Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, 9000 Aalborg, Denmark;
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Chakfé N, Diener H, Lejay A, Assadian O, Berard X, Caillon J, Fourneau I, Glaudemans AWJM, Koncar I, Lindholt J, Melissano G, Saleem BR, Senneville E, Slart RHJA, Szeberin Z, Venermo M, Vermassen F, Wyss TR, de Borst GJ, Bastos Gonçalves F, Kakkos SK, Kolh P, Tulamo R, Vega de Ceniga M, von Allmen RS, van den Berg JC, Debus ES, Koelemay MJW, Linares-Palomino JP, Moneta GL, Ricco JB, Wanhainen A. Editor's Choice - European Society for Vascular Surgery (ESVS) 2020 Clinical Practice Guidelines on the Management of Vascular Graft and Endograft Infections. Eur J Vasc Endovasc Surg 2020; 59:339-384. [PMID: 32035742 DOI: 10.1016/j.ejvs.2019.10.016] [Citation(s) in RCA: 266] [Impact Index Per Article: 66.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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203
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Bowles H, Ambrosioni J, Mestres G, Hernández-Meneses M, Sánchez N, Llopis J, Yugueros X, Almela M, Moreno A, Riambau V, Fuster D, Miró JM. Diagnostic yield of 18F-FDG PET/CT in suspected diagnosis of vascular graft infection: A prospective cohort study. J Nucl Cardiol 2020; 27:294-302. [PMID: 29907934 DOI: 10.1007/s12350-018-1337-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 06/04/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND Prosthetic vascular graft infection (PVGI) is a severe complication associated with high morbidity and mortality. Clinical diagnosis is complex, requiring image testing such as CT angiography or leukocyte scintigraphy, which has considerable limitations. The aim of this study was to know the diagnostic yield of PET/CT with 18F-Fluorodeoxyglucose (18F-FDG) in patients with suspected PVGI. METHODS We performed a prospective cohort study including 49 patients with suspected PVGI, median age of 62 ± 14 years. Three uptake patterns were defined following published recommendations: (i) focal, (ii) patched (PVGI criteria), and (iii) diffuse (no PVGI criterion). RESULTS Sensitivity, specificity, and positive and negative predictive values for 18F-FDG-PET/CT were 88%, 79%, 67%, and 93%, respectively. 18F-FDG-PET/CT identified 14/16 cases of PVGI showing a focal (n = 10) or patched pattern (n = 4), being true negative in 26/33 cases with either a diffuse pattern (n = 16) or without uptake (n = 10). Five of the seven false-positive cases (71%) showed a patched pattern and all coincided with the application of adhesives for PVG placement. CONCLUSIONS 18F-FDG-PET/CT is a useful technique for the diagnosis of PVGI. A patched pattern on PET/CT in patients in whom adhesives were applied for prosthetic vascular graft placement does not indicate infection.
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Affiliation(s)
- Hans Bowles
- Nuclear Medicine Department, Hospital Clínic i Provincial de Barcelona, Villarroel, 170, 08036, Barcelona, Spain
| | - Juan Ambrosioni
- Infectious Diseases Service, Hospital Clinic, Barcelona, Spain
- Institut d'Investigacions Biomèdiques Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
| | - Gaspar Mestres
- Cardiovascular Surgery Department, Hospital Clinic, Barcelona, Spain
| | | | - Nuria Sánchez
- Nuclear Medicine Department, Hospital Clínic i Provincial de Barcelona, Villarroel, 170, 08036, Barcelona, Spain
| | - Jaime Llopis
- Statistics Department, Faculty of Biology, University of Barcelona, Barcelona, Spain
| | - Xavier Yugueros
- Cardiovascular Surgery Department, Hospital Clinic, Barcelona, Spain
| | - Manel Almela
- Clinical Microbiology Department, Hospital Clínic, Barcelona, Spain
| | - Asunción Moreno
- Infectious Diseases Service, Hospital Clinic, Barcelona, Spain
- Institut d'Investigacions Biomèdiques Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
| | - Vicenç Riambau
- Cardiovascular Surgery Department, Hospital Clinic, Barcelona, Spain
| | - David Fuster
- Nuclear Medicine Department, Hospital Clínic i Provincial de Barcelona, Villarroel, 170, 08036, Barcelona, Spain.
- Institut d'Investigacions Biomèdiques Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain.
| | - Jose M Miró
- Infectious Diseases Service, Hospital Clinic, Barcelona, Spain
- Institut d'Investigacions Biomèdiques Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
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204
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Wang WX, Cheng ZT, Zhu JL, Xing MY, Zheng CF, Wang SJ, Xie NN, XianYu ZQ, Song JX. Combined clinical parameters improve the diagnostic efficacy of 18F-FDG PET/CT in patients with fever of unknown origin (FUO) and inflammation of unknown origin (IUO): A prospective study in China. Int J Infect Dis 2020; 93:77-83. [PMID: 31982625 DOI: 10.1016/j.ijid.2020.01.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/21/2019] [Accepted: 01/16/2020] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES To improve the diagnostic efficacy of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) for Chinese patients with fever of unknown origin (FUO) and inflammation of unknown origin (IUO), with combined clinical parameters. MATERIALS AND METHODS FUO/IUO patients who underwent a standard diagnostic work-up and 18F-FDG PET/CT scanning were enrolled and divided into a local uptake lesion subgroup and a non-specific abnormal uptake subgroup. Beneficial clinical parameters for improving the diagnostic efficacy of PET/CT were identified. RESULTS From January 2014 to January 2019, 253 FUO/IUO patients were studied. In total, 147 patients had local uptake lesions and 106 patients had non-specific abnormal uptake. In the local uptake lesion group, the positioning accuracy of PET/CT was 37.2% in grades 1 and 2, and 66.3% in grades 3 and 4. With the following combination of clinical parameters, the positioning accuracy increased to 75.0% and 90.0%, respectively: time from admission to performing PET/CT scanning <6.5 days and C-reactive protein level >95 mg/l. In the non-specific abnormal uptake group, the combination of sex (male), bicytopenia, and lactic dehydrogenase improved the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for diagnosing malignancy from 64.3%, 69%, 60%, and 72.7%, respectively, to 83.3%, 81%, 81.4%, and 82.9%, respectively. With the combination of sex (male), white blood count, serum ferritin level, and hepatosplenomegaly, the infection prediction model had a sensitivity, specificity, PPV, and NPV of 78%, 76.2%, 76.6%, and 77.6%, respectively. CONCLUSIONS Combined clinical parameters improved the localization diagnostic value of 18F-FDG PET/CT in the local uptake lesion subgroup and the etiological diagnostic value in the non-specific abnormal uptake subgroup.
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Affiliation(s)
- Wen-Xia Wang
- Department of Infectious Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030, Wuhan, China
| | - Zhao-Ting Cheng
- Department of Nuclear Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030 Wuhan, China
| | - Ji-Ling Zhu
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, 238 Jiefang Road, 430030, Wuhan, China
| | - Ming-You Xing
- Department of Infectious Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030, Wuhan, China
| | - Cai-Feng Zheng
- Department of Infectious Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030, Wuhan, China
| | - Si-Jun Wang
- Department of Infectious Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030, Wuhan, China
| | - Na-Na Xie
- Department of Infectious Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030, Wuhan, China
| | - Zhi-Qun XianYu
- Department of Nuclear Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030 Wuhan, China
| | - Jian-Xin Song
- Department of Infectious Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, 430030, Wuhan, China.
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Role of 18F-flurodeoxyglucose in orthopaedic implant-related infection: review of literature and experience. Nucl Med Commun 2020; 40:875-887. [PMID: 31365498 DOI: 10.1097/mnm.0000000000001063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Infection and inflammation are a common occurrence with orthopaedic procedures. Anatomical modalities can show the transformation in the disease process; however, these may occur later when compared with functional imaging modalities that are more likely to identify early disease patterns. Various molecular imaging modalities such as three-phase bone scintigraphy, labelled leucocyte scintigraphy, as well as radiolabelled antibiotics and immunoglobulins have been considered and have played key roles in assisting clinical decision-making. While 18F-flurodeoxyglucose (FDG) PET/computed tomography (CT) has been relatively well established in cancer pathways, it has the potential to contribute to surgical decision making for possible osteomyelitis post-metal implant surgery. In this article, we present a review of recently used tracers, and share our experience with using 18F-FDG PET/CT studies in a few diverse clinical settings related to post-metal implant osteomyelitis.
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206
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Kubota K, Ogawa M, Ji B, Watabe T, Zhang MR, Suzuki H, Sawada M, Nishi K, Kudo T. Basic Science of PET Imaging for Inflammatory Diseases. PET/CT FOR INFLAMMATORY DISEASES 2020. [PMCID: PMC7418531 DOI: 10.1007/978-981-15-0810-3_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
FDG-PET/CT has recently emerged as a useful tool for the evaluation of inflammatory diseases too, in addition to that of malignant diseases. The imaging is based on active glucose utilization by inflammatory tissue. Autoradiography studies have demonstrated high FDG uptake in macrophages, granulocytes, fibroblasts, and granulation tissue. Especially, activated macrophages are responsible for the elevated FDG uptake in some types of inflammation. According to one study, after activation by lipopolysaccharide of cultured macrophages, the [14C]2DG uptake by the cells doubled, reaching the level seen in glioblastoma cells. In activated macrophages, increase in the expression of total GLUT1 and redistributions from the intracellular compartments toward the cell surface have been reported. In one rheumatoid arthritis model, following stimulation by hypoxia or TNF-α, the highest elevation of the [3H]FDG uptake was observed in the fibroblasts, followed by that in macrophages and neutrophils. As the fundamental mechanism of elevated glucose uptake in both cancer cells and inflammatory cells, activation of glucose metabolism as an adaptive response to a hypoxic environment has been reported, with transcription factor HIF-1α playing a key role. Inflammatory cells and cancer cells seem to share the same molecular mechanism of elevated glucose metabolism, lending support to the notion of usefulness of FDGPET/CT for the evaluation of inflammatory diseases, besides cancer.
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207
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Malik D, Verma R, Gupta V, Belho ES, Drolia B, Seniaray N, Mahajan H. Semiquantitative Interpretation Criteria for Fluorodeoxyglucose-Positron Emission Tomography/Computed Tomography in Large-Vessel Vasculitis: Pattern Recognition and Correlation with Polymyalgia Rheumatica. Indian J Nucl Med 2019; 35:6-12. [PMID: 31949362 PMCID: PMC6958959 DOI: 10.4103/ijnm.ijnm_136_19] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 08/19/2019] [Accepted: 09/23/2019] [Indexed: 11/04/2022] Open
Abstract
Background Fluorine-18-fluorodeoxyglucose (18F-FDG)-positron emission tomography/computed tomography (PET/CT) is emerging as a useful imaging modality in suspected large-vessel vasculitis (LVV), owing to its ability to accumulate at the sites of inflammation within the arterial walls. However, there remains scope for standardization of reporting criteria to ensure reproducibility. Recently, a semiquantitative scoring system called "total vascular score" (TVS) has been suggested as a method to standardize and harmonize FDG PET/CT evaluation in LVV patients. The purpose of this study was to assess the clinical utility of the proposed semiquantitative grading scale in LVV patients. Materials and Methods Patients presenting with clinical symptoms of vasculitis, who had undergone a baseline FDG-PET/CT were evaluated. 18F-FDG uptake in the major vessels was quantified with standardized uptake values (SUVsmax) using four-point scale by three independent nuclear physicians. TVS was calculated based on the calculation of the vascular uptake values with respect to mediastinal blood pool and liver uptake and the number of vessels involved. Results A total of 106 PET-positive patients (74 males and 32 females) were evaluated. The most frequently involved vessels were thoracic aorta >abdominal aorta >subclavian arteries with mean SUVmax values of 4.05, 3.12, and 2.70, respectively. Mean TVS was 13.18 ± 3.4 (range 03-19) among 276 involved vessels. TVS showed significant positive correlation with erythrocyte sedimentation rate (r = 0.82; P < 0.005). 18 patients showed periarticular FDG uptake, with shoulder joint being the most commonly involved joint. Conclusion The simplified visual and semiquantitative grading scale for interpretation and reporting classification provides better objectivity in diagnosis, communication with referring clinicians, and planning in patients of LVV.
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Affiliation(s)
- Dharmender Malik
- Department of Nuclear Medicine and PET/CT, Centre for Advanced Research in Imaging, Neuroscience and Genomics (CARING), Sir Ganga Ram Hospital, New Delhi, India
| | - Ritu Verma
- Department of Nuclear Medicine and PET/CT, Centre for Advanced Research in Imaging, Neuroscience and Genomics (CARING), Sir Ganga Ram Hospital, New Delhi, India
| | - Vanshika Gupta
- Department of Nuclear Medicine and PET/CT, Centre for Advanced Research in Imaging, Neuroscience and Genomics (CARING), Sir Ganga Ram Hospital, New Delhi, India
| | - Ethel Shangne Belho
- Department of Nuclear Medicine and PET/CT, Centre for Advanced Research in Imaging, Neuroscience and Genomics (CARING), Sir Ganga Ram Hospital, New Delhi, India
| | - Babita Drolia
- Department of Nuclear Medicine and PET/CT, Centre for Advanced Research in Imaging, Neuroscience and Genomics (CARING), Sir Ganga Ram Hospital, New Delhi, India
| | - Nikhil Seniaray
- Department of Nuclear Medicine and PET/CT, Centre for Advanced Research in Imaging, Neuroscience and Genomics (CARING), Sir Ganga Ram Hospital, New Delhi, India
| | - Harsh Mahajan
- Department of Nuclear Medicine and PET/CT, Centre for Advanced Research in Imaging, Neuroscience and Genomics (CARING), Sir Ganga Ram Hospital, New Delhi, India
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Khalid V, Schønheyder HC, Nielsen PT, Kappel A, Thomsen TR, Aleksyniene R, Lorenzen J, Rasmussen S. 72 revision surgeries for aseptic failure after hip or knee arthroplasty: a prospective study with an extended diagnostic algorithm. BMC Musculoskelet Disord 2019; 20:600. [PMID: 31830947 PMCID: PMC6909479 DOI: 10.1186/s12891-019-2944-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 11/13/2019] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Unrecognized periprosthetic joint infections are a concern in revision surgery for aseptic failure (AF) after total hip (THA) or knee (TKA) arthroplasties. A gold diagnostic standard does not exist. The aim of the current study was to determine the prevalence of unrecognized periprosthetic joint infection (PJI) in a cohort of revision for AF, using an experimental diagnostic algorithm. METHODS The surgeons' suspicion of AF was based primarily on patient history and clinical evaluation. X-ray imaging was used to reveal mechanical problems. To rule out an infectious aetiology standard blood biochemical tests were ordered in most patients. Evaluation followed the existing practice in the institute. Cases were included if revision surgery was planned for suspected AF. Intraoperatively, five synovial tissue biopsies were obtained routinely. PJI was defined as ≥3 positive cultures with the same microorganism(s). Patients were followed for 1 year postoperatively. Protocol samples included joint fluid, additional synovial tissue biopsies, bone biopsy, swabs from the implant surface, and sonication of retrieved components. Routine and protocol samples were cultured with extended incubation (14 days) and preserved for batchwise 16S rRNA gene amplification. Patients were stratified based on culture results and a clinical status was obtained at study end. RESULTS A total of 72 revisions were performed on 71 patients (35 THA and 37 TKA). We found five of 72 cases of unrecognized PJI. Extended culture and protocol samples accounted for two of these. One patient diagnosed with AF was treated for a PJI during follow-up. The remaining patients did not change status from AF during follow-up. CONCLUSIONS We found a low prevalence of unrecognized periprosthetic joint infections in patients with an AF diagnosis. The algorithm strengthens the surgeons' preoperative diagnosis of a non-infective condition. Evaluation for a failing TKA or THA is complex. Distinguishing between AF and PJI pre-operatively was a clinical decision. Our data did not support additional testing in routine revision surgery for AF.
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Affiliation(s)
- Vesal Khalid
- Orthopaedic Research Unit, Aalborg University Hospital, Aalborg, Denmark. .,Department of Orthopaedic Surgery, Aalborg University Hospital, Aalborg, Denmark. .,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
| | - Henrik Carl Schønheyder
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.,Department of Clinical Microbiology, Aalborg University Hospital, Aalborg, Denmark
| | - Poul Torben Nielsen
- Orthopaedic Research Unit, Aalborg University Hospital, Aalborg, Denmark.,Department of Orthopaedic Surgery, Aalborg University Hospital, Aalborg, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Andreas Kappel
- Orthopaedic Research Unit, Aalborg University Hospital, Aalborg, Denmark.,Department of Orthopaedic Surgery, Aalborg University Hospital, Aalborg, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Trine Rolighed Thomsen
- Center for Microbial Communities, Department of Biotechnology, Chemistry and Environmental Engineering, Aalborg University, Aalborg, Denmark.,Danish Technological Institute, Medical Biotechnology, Aarhus, Denmark
| | - Ramune Aleksyniene
- Department of Nuclear Medicine, Aalborg University Hospital, Aalborg, Denmark
| | - Jan Lorenzen
- Danish Technological Institute, Medical Biotechnology, Aarhus, Denmark
| | - Sten Rasmussen
- Orthopaedic Research Unit, Aalborg University Hospital, Aalborg, Denmark.,Department of Orthopaedic Surgery, Aalborg University Hospital, Aalborg, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
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209
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An enlarged left adrenal gland is an indirect sign of infection on 18F-FDG PET/CT. Nucl Med Commun 2019; 40:758-763. [PMID: 30882551 DOI: 10.1097/mnm.0000000000001013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To determine whether hypermetabolisms of the spleen and bone marrow and an enlarged adrenal gland are significant indirect signs of infection on fluorine-18-fluorodeoxyglucose (F-FDG) PET/CT performed in patients with known or suspected infectious disease. PATIENTS AND METHODS Potential indirect signs of infection were as follows: (i) investigated in a retrospectively selected group of patients referred to F-FDG PET/CT for a known or suspected infectious disease and among whom the presence or absence of infectious foci was ascertained in 43 and 12 cases, respectively, and (ii) further validated in groups prospectively constituted of 12 patients with severe sepsis and of 39 control patients with no sign of any infectious disease. Standardised uptake values were determined on left adrenal gland, spleen and bone marrow, whereas the size of left adrenal gland was assessed by its maximal surface on unenhanced axial computed tomography (CT) slices. RESULTS Only the maximal surface of the left adrenal gland was a predictor in the initial study group (infection: 2.72±0.99 cm vs. no infection: 1.85±0.76 cm, P=0.004) and further validation groups (sepsis: 2.79±0.83 cm vs. controls: 1.91±0.67 cm, P=0.001). Patients with a greater than 1.8 cm maximal surface had more than two-fold higher infection rate than the other patients in the initial study group [88 (36/41) vs. 36% (4/11), P=0.001], even when only considering the subgroup with no evident infectious focus on F-FDG PET/CT [76 (16/21) vs. 30% (3/10), P=0.02]. CONCLUSION An enlarged left adrenal gland is a significant sign of infection on F-FDG PET/CT, even in the absence of any evident infectious focus on F-FDG PET/CT images.
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210
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Jødal L, Roivainen A, Oikonen V, Jalkanen S, Hansen SB, Afzelius P, Alstrup AKO, Nielsen OL, Jensen SB. Kinetic Modelling of [ 68Ga]Ga-DOTA-Siglec-9 in Porcine Osteomyelitis and Soft Tissue Infections. Molecules 2019; 24:molecules24224094. [PMID: 31766140 PMCID: PMC6891593 DOI: 10.3390/molecules24224094] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 11/07/2019] [Accepted: 11/10/2019] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND [68Ga]Ga-DOTA-Siglec-9 is a positron emission tomography (PET) radioligand for vascular adhesion protein 1 (VAP-1), a protein involved in leukocyte trafficking. The tracer facilitates the imaging of inflammation and infection. Here, we studied the pharmacokinetic modelling of [68Ga]Ga-DOTA-Siglec-9 in osteomyelitis and soft tissue infections in pigs. METHODS Eight pigs with osteomyelitis and soft tissue infections in the right hind limb were dynamically PET scanned for 60 min along with arterial blood sampling. The fraction of radioactivity in the blood accounted for by the parent tracer was evaluated with radio-high-performance liquid chromatography. One- and two-tissue compartment models were used for pharmacokinetic evaluation. Post-mortem soft tissue samples from one pig were analysed with anti-VAP-1 immunofluorescence. In each analysis, the animal's non-infected left hind limb was used as a control. RESULTS Tracer uptake was elevated in soft tissue infections but remained low in osteomyelitis. The kinetics of [68Ga]Ga-DOTA-Siglec-9 followed a reversible 2-tissue compartment model. The tracer metabolized quickly; however, taking this into account, produced more ambiguous results. Infected soft tissue samples showed endothelial cell surface expression of the Siglec-9 receptor VAP-1. CONCLUSION The kinetics of [68Ga]Ga-DOTA-Siglec-9 uptake in porcine soft tissue infections are best described by the 2-tissue compartment model.
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Affiliation(s)
- Lars Jødal
- Department of Nuclear Medicine, Aalborg University Hospital, DK-9000 Aalborg, Denmark;
- Correspondence: ; Tel.: +45-9766-5500
| | - Anne Roivainen
- Turku PET Centre, Turku University Hospital, FI-20520 Turku, Finland; (A.R.); (V.O.)
- Turku PET Centre, University of Turku, FI-20520 Turku, Finland
| | - Vesa Oikonen
- Turku PET Centre, Turku University Hospital, FI-20520 Turku, Finland; (A.R.); (V.O.)
- Turku PET Centre, University of Turku, FI-20520 Turku, Finland
| | - Sirpa Jalkanen
- MediCity Research Laboratory and Institute of Biomedicine, University of Turku, FI-20520 Turku, Finland;
| | - Søren B. Hansen
- Department of Nuclear Medicine and PET, Aarhus University Hospital, DK-8200 Aarhus, Denmark; (S.B.H.); (A.K.O.A.)
| | - Pia Afzelius
- North Zealand Hospital, Hillerød, Copenhagen University Hospital, DK-3400 Hillerød, Denmark;
| | - Aage K. O. Alstrup
- Department of Nuclear Medicine and PET, Aarhus University Hospital, DK-8200 Aarhus, Denmark; (S.B.H.); (A.K.O.A.)
| | - Ole L. Nielsen
- Department of Veterinary and Animal Sciences, University of Copenhagen, DK-1870 Copenhagen, Denmark;
| | - Svend B. Jensen
- Department of Nuclear Medicine, Aalborg University Hospital, DK-9000 Aalborg, Denmark;
- Department of Chemistry and Biosciences, Aalborg University, DK-9100 Aalborg, Denmark
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Role of Nuclear Medicine in the diagnosis of musculoskeletal infection: a review. Rev Esp Med Nucl Imagen Mol 2019. [DOI: 10.1016/j.remnie.2019.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Govaert G, Hobbelink M, Reininga I, Bosch P, Kwee TC, de Jong PA, Jutte PC, Vogely HC, Dierckx R, Leenen L, Glaudemans A, IJpma F. The accuracy of diagnostic Imaging techniques in patients with a suspected Fracture-related Infection (IFI) trial: study protocol for a prospective multicenter cohort study. BMJ Open 2019; 9:e027772. [PMID: 31501101 PMCID: PMC6738705 DOI: 10.1136/bmjopen-2018-027772] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION The optimal diagnostic imaging strategy for fracture-related infection (FRI) remains to be established. In this prospective study, the three commonly used advanced imaging techniques for diagnosing FRI will be compared. Primary endpoints are (1) determining the overall diagnostic performances of white blood cell (WBC) scintigraphy, fluorodeoxyglucose positron emission tomography (FDG-PET) and magnetic resonance imaging (MRI) in patients with suspected FRI and (2) establishing the most accurate imaging strategy for diagnosing FRI. METHODS AND ANALYSIS This study is a non-randomised, partially blinded, prospective cohort study involving two level 1 trauma centres in The Netherlands. All adult patients who require advanced medical imaging for suspected FRI are eligible for inclusion. Patients will undergo all three investigational imaging procedures (WBC scintigraphy, FDG-PET and MRI) within a time frame of 14 days after inclusion. The reference standard will be the result of at least five intraoperative sampled microbiology cultures, or, in case of no surgery, the clinical presence or absence of infection at 1 year follow-up. Initially, the results of all three imaging modalities will be available to the treating team as per local protocol. At a later time point, all scans will be centrally reassessed by nuclear medicine physicians and radiologists who are blinded for the identity of the patients and their clinical outcome. The discriminative ability of the imaging modalities will be quantified by several measures of diagnostic accuracy. ETHICS AND DISSEMINATION Approval of the study by the Institutional Review Board has been obtained prior to the start of this study. The results of this trial will be disseminated by publication of peer-reviewed manuscripts, presentation in abstract form at scientific meetings and data sharing with other investigators through academically established means. TRIAL REGISTRATION NUMBER The IFI trial is registered in the Netherlands Trial Register (NTR7490).
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Affiliation(s)
- Gam Govaert
- Department of Trauma Surgery, Utrecht University, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Mgg Hobbelink
- Department of Radiology and Nuclear Imaging, Utrecht University, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Ihf Reininga
- Department of Trauma Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - P Bosch
- Department of Trauma Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - T C Kwee
- Department of Radiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - P A de Jong
- Department of Radiology and Nuclear Imaging, Utrecht University, University Medical Center Utrecht, Utrecht, The Netherlands
| | - P C Jutte
- Department of Orthopaedic Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - H C Vogely
- Department of Orthopaedic Surgery, Utrecht University, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Rajo Dierckx
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Lph Leenen
- Department of Trauma Surgery, Utrecht University, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Awjm Glaudemans
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Ffa IJpma
- Department of Trauma Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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213
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Noriega-Álvarez E, Domínguez Gadea L, Orduña Diez MP, Peiró Valgañón V, Sanz Viedma S, García Jiménez R. Role of Nuclear Medicine in the diagnosis of musculoskeletal infection: a review. Rev Esp Med Nucl Imagen Mol 2019; 38:397-407. [PMID: 31488365 DOI: 10.1016/j.remn.2019.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 06/02/2019] [Accepted: 06/10/2019] [Indexed: 10/26/2022]
Abstract
Inflammatory and infectious osteoarticular diseases can cause serious consequences for the patient if they are not diagnosed on time. In the last decades, different modalities of nuclear medicine have allowed to study the physiopathology of these processes, and nowadays, they play an important role in diagnosis, characterization and monitoring of musculoskeletal infectious diseases. Therefore, it is essential that every nuclear medicine physician have a vision of the advantages and disadvantages of each method and know how to use them correctly in the diagnosis of the patient. This article highlights the role of nuclear medicine in standardizing the diagnostic approach in patients with infectious/inflammatory diseases, in particular in peripheral osteomyelitis, septic arthritis, prosthetic joint infections, infected diabetic foot and spinal infections. The authors reveal the role of the most common radionuclides tests, with their advantages and clinical indications, to achieve an adequate diagnosis of infection and inflammation.
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Affiliation(s)
- E Noriega-Álvarez
- Servicio de Medicina Nuclear, Hospital General Universitario de Ciudad Real, Ciudad Real, España; Grupo de Patología Musculoesquelética de la SEMNIM.
| | - L Domínguez Gadea
- Grupo de Patología Musculoesquelética de la SEMNIM; Servicio de Medicina Nuclear, Hospital Universitario La Paz, Madrid, España
| | - M P Orduña Diez
- Grupo de Patología Musculoesquelética de la SEMNIM; Servicio de Medicina Nuclear, Hospital Universitario Ramón y Cajal, Madrid, España
| | - V Peiró Valgañón
- Grupo de Patología Musculoesquelética de la SEMNIM; Diagnóstico por Imagen, Hospital Universitario de Fuenlabrada, Madrid, España
| | - S Sanz Viedma
- Grupo de Patología Musculoesquelética de la SEMNIM; Servicio de Medicina Nuclear, Hospital Universitario Virgen de la Victoria, Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA)
| | - R García Jiménez
- Grupo de Patología Musculoesquelética de la SEMNIM; Servicio de Medicina Nuclear, Hospital Universitario Virgen del Rocío, Sevilla, España
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Sheikh A, Anolik J, Maurer AH. Update on Serum Glucose and Metabolic Management of Clinical Nuclear Medicine Studies: Current Status and Proposed Future Directions. Semin Nucl Med 2019; 49:411-421. [PMID: 31470934 DOI: 10.1053/j.semnuclmed.2019.06.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Management of a patient's blood glucose or metabolism in nuclear medicine studies has become an integral aspect of daily work primarily due to the increasing use of F-18 flurodeoxyglucose (FDG) positron emission tomography (PET). Newer tracers such as F-18 Fluciclovine and C-11 Choline, are in theory subject to metabolic shifts and changes based on patients' insulin levels, and also require attention to achieving optimum patient preparation. Metabolic derangements can also affect other studies, such as gastric emptying (GE), the results of which are dependent upon the patient's blood glucose level during the time of imaging. The growing variety of diabetic medications has increased the complexity of the instructions which need to be given to patients. Current guidelines for patient preparation were developed in the past and have only slowly evolved with the introduction of newer oral medications. In addition to older insulin formulations newer formulations with different profiles of onset, duration, and consistency of action are being used. The wide spectrum of newer drugs now in use for treating diabetes has not been accompanied by any updated consensus on how to manage these drugs for imaging studies which require blood glucose level management. In this article we review these newer diabetes medications primarily to raise awareness of the changing landscape. Our focus will be on suggestions to optimize patient preparation and management for these studies. For each scenario, our suggestions will be given as summary proposals for best patient management. Our hope is that this discussion will stimulate multicenter studies to provide data to support new practice guidelines for metabolically dependent nuclear medicine procedures.
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Affiliation(s)
- Arif Sheikh
- Division of Nuclear Medicine; Department of Diagnostic, Molecular and Interventional Radiology, Mount Sinai Hospital, Icahn School of Medicine, New York, NY.
| | - Jonathan Anolik
- Section of Endocrinology, Department of Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, PA
| | - Alan H Maurer
- Section of Nuclear Medicine, Department of Radiology, Temple University Lewis Katz School of Medicine, Philadelphia, PA
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The Clinical Impact of Using 18F-FDG-PET/CT in the Diagnosis of Suspected Vasculitis: The Effect of Dose and Timing of Glucocorticoid Treatment. CONTRAST MEDIA & MOLECULAR IMAGING 2019; 2019:9157637. [PMID: 31531005 PMCID: PMC6735179 DOI: 10.1155/2019/9157637] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 08/07/2019] [Indexed: 01/18/2023]
Abstract
18F-Fluorodeoxyglucose positron-emission tomography (18F-FDG-PET) with computed tomography (CT) is effective for diagnosing large vessel vasculitis, but its usefulness in accurately diagnosing suspected, unselected vasculitis remains unknown. We evaluated the feasibility of 18F-FDG-PET/CT in real-life cohort of patients with suspicion of vasculitis. The effect of the dose and the timing of glucocorticoid (GC) medication on imaging findings were in special interest. 82 patients with suspected vasculitis were evaluated by whole-body 18F-FDG-PET/CT. GC treatment as prednisolone equivalent doses at the scanning moment and before imaging was evaluated. 38/82 patients were diagnosed with vasculitis. Twenty-one out of 38 patients had increased 18F-FDG accumulation in blood vessel walls indicating vasculitis in various sized vessels. Vasculitis patients with a positive vasculitis finding in 18F-FDG-PET/CT had a significantly shorter duration of GC use (median = 4.0 vs 7.0 days, P=0.034), and they used lower GC dose during the PET scan (median dose = 15.0 mg/day vs 40.0 mg/day, p=0.004) compared to 18F-FDG-PET/CT-negative patients. Vasculitis patients with a positive 18F-FDG-PET/CT result had significantly higher C-reactive protein (CRP) than patients with a negative 18F-FDG-PET/CT finding (mean value = 154.5 vs 90.4 mg/L, p=0.018). We found that 18F-FDG-PET/CT positivity was significantly associated with a lower dose and shorter duration of GC medication and higher CRP level in vasculitis patients. 18F-FDG-PET/CT revealed clinically significant information in over half of the patients and was effective in confirming the final diagnosis.
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FDG PET/CT of Infection: Should It Replace Labeled Leukocyte Scintigraphy of Inpatients? AJR Am J Roentgenol 2019; 213:1358-1365. [PMID: 31461320 DOI: 10.2214/ajr.18.20475] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVE. The purpose of this study was to compare the sensitivity, specificity, and helpfulness to referring clinicians of labeled leukocyte scintigraphy versus FDG PET/CT in inpatients with suspected infection. MATERIALS AND METHODS. In this retrospective study, labeled leukocyte scintigraphy and FDG PET/CT examinations performed from 2009 to 2017 for suspected infection in inpatients were identified. Sensitivity, specificity, and helpfulness of PET/CT versus labeled leukocyte scintigraphy were calculated by means of a mixed generalized linear model. Number of yearly tests and radiopharmaceutical costs were also assessed. RESULTS. Fifty-seven patients (30 men, 27 women; median age, 65 years; range, 21-91 years) underwent whole-body labeled leukocyte scintigraphy. Forty-two patients (30 male patients, 12 female patients; median age, 62.5 years; range, 12-91 years) underwent PET/CT for suspected infection. Labeled leukocyte scintigraphy was 66.7% sensitive, whereas the sensitivity of PET/CT was 89.7% (p = 0.0485). The higher sensitivity of PET/CT did not come at a cost to specificity, which was 73.3% as opposed to 76.9% for labeled leukocyte scintigraphy (p = 0.8050). The odds of a positive study being helpful increased 4.6-fold for PET/CT versus labeled leukocyte scintigraphy (p = 0.0412). From 2009 to 2011, 33 labeled leukocyte scintigraphic examinations were performed versus two PET/CT examinations; and from 2012 to 2014, 16 labeled leukocyte scintigraphic versus 22 PET/CT examinations; from 2015 to 2017, eight labeled leukocyte scintigraphic versus 18 PET/CT examinations. The cost of labeled leukocytes increased between 2009 and 2017, but that of FDG decreased. By 2017, a labeled leukocyte radiopharmaceutical dose was approximately 10 times the cost of an FDG dose. CONCLUSION. PET/CT was more sensitive than and as specific as labeled leukocyte scintigraphy for identifying a source of infection in inpatients, and it was more helpful to referring clinicians. Use of PET/CT increased over time and was associated with substantial savings in radiopharmaceutical cost.
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217
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Arnon-Sheleg E, Israel O, Keidar Z. PET/CT Imaging in Soft Tissue Infection and Inflammation-An Update. Semin Nucl Med 2019; 50:35-49. [PMID: 31843060 DOI: 10.1053/j.semnuclmed.2019.07.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Nuclear medicine procedures, including Ga-67 and labeled leucocyte SPECT/CT as well as PET/CT using 18F-FDG and recently Ga-68 tracers, have found extensive applications in the assessment of infectious and inflammatory processes in general and in soft tissues in particular. Recent published data focus on summarizing the available imaging information with the purpose of providing the referring clinicians with optimized evidence based results. Guidelines and/or recommendations of clinical societies have incorporated nuclear medicine tests (using both labeled leucocytes and FDG) in their suggested work-up for evaluation of infective endocarditis and in certain patients with suspected vascular graft infections. Joint guidelines of the European and American nuclear medicine societies include fever of unknown origin, sarcoidosis, and vasculitis among the major clinical indications that will benefit from nuclear medicine procedures, specifically from FDG PET/CT. Limitations and pitfalls for the use of radiotracers in assessment of infection and inflammation can be related to patient conditions (eg, diabetes mellitus), or to the biodistribution of a specific radiopharmaceutical. Limited presently available data on the use of functional and/or metabolic monitoring of response to infectious and inflammatory processes to treatment and with respect to the effect of drugs such as antibiotics and glucocorticoids on the imaging patterns of these patients need further confirmation.
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Affiliation(s)
- Elite Arnon-Sheleg
- Department of Nuclear Medicine, Galilee Medical Center, Naharia, Israel; Department of Diagnostic Radiology, Galilee Medical Center, Naharia, Israel.
| | - Ora Israel
- Department of Nuclear Medicine, Rambam Health Care Campus, Haifa, Israel; The B. Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Zohar Keidar
- Department of Nuclear Medicine, Rambam Health Care Campus, Haifa, Israel; The B. Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
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218
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Genovesi D, Bauckneht M, Altini C, Popescu CE, Ferro P, Monaco L, Borra A, Ferrari C, Caobelli F. The role of positron emission tomography in the assessment of cardiac sarcoidosis. Br J Radiol 2019; 92:20190247. [PMID: 31166768 PMCID: PMC6724628 DOI: 10.1259/bjr.20190247] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 05/06/2019] [Accepted: 05/09/2019] [Indexed: 12/12/2022] Open
Abstract
The myocardium and the cardiovascular system are often involved in patients with sarcoidosis. As therapy should be started as early as possible to avoid complications such as left ventricular dysfunction, a prompt and reliable diagnosis by means of non-invasive tests would be highly warranted. Among other techniques, 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) has emerged as a high sensitive tool to detect sites of inflammation before morphological changes are visible to conventional imaging techniques. We therefore aim at summarizing the most relevant findings in the literature on the use of 18F-fluorodeoxyglucose PET in the diagnostic workup of cardiac sarcoidosis and to underline future perspectives.
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Affiliation(s)
- Dario Genovesi
- Nuclear Medicine Unit, Fondazione CNR/Regione Toscana "Gabriele Monasterio", Pisa, Italy
| | | | - Corinna Altini
- Nuclear Medicine Unit, Interdisciplinar Department of Medicine, Policlinic of Bari- University of Bari “Aldo Moro”, Bari, Italy
| | | | - Paola Ferro
- Nuclear Medicine Department, IRCCS San Raffaele Hospital, Milan, Italy
| | - Lavinia Monaco
- Nuclear Medicine Department, University Milan Bicocca, Milan, Italy
| | - Anna Borra
- Department of Health Sciences (DISSAL), University of Genova, Genoa, Italy
| | - Cristina Ferrari
- Nuclear Medicine Unit, Interdisciplinar Department of Medicine, Policlinic of Bari- University of Bari “Aldo Moro”, Bari, Italy
| | - Federico Caobelli
- Clinic of Radiology & Nuclear Medicine, University Hospital Basel, University of Basel. Basel, Switzerland
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220
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Sunde SK, Beske T, Gerke O, Clausen LL, Hess S. FDG-PET/CT as a diagnostic tool in vascular graft infection: a systematic review and meta-analysis. Clin Transl Imaging 2019. [DOI: 10.1007/s40336-019-00336-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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221
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Diagnostic Performance of 18F-FDG PET/CT in Infectious and Inflammatory Diseases according to Published Meta-Analyses. CONTRAST MEDIA & MOLECULAR IMAGING 2019; 2019:3018349. [PMID: 31427907 PMCID: PMC6683817 DOI: 10.1155/2019/3018349] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 04/04/2019] [Accepted: 07/14/2019] [Indexed: 12/13/2022]
Abstract
Purpose To date, several meta-analyses have reported data about the diagnostic performance of 18F-FDG PET/CT in infectious and inflammatory diseases. This article aims to summarize the published evidence-based data about the diagnostic performance of 18F-FDG PET/CT in this setting. Methods A comprehensive computer literature search of meta-analyses published in PubMed/MEDLINE and Cochrane library database from January 2009 through December 2018 and regarding the diagnostic performance of 18F-FDG PET/CT in infectious and inflammatory diseases was carried out. This combination of key words was used: (i) “PET” OR “positron emission tomography” OR “FDG” OR “fluorodeoxyglucose” AND (ii) meta-analysis. Only records on inflammatory or infectious diseases were selected. Results The diagnostic performance of 18F-FDG PET/CT in detecting inflammatory and infectious diseases has been summarized taking into account 36 meta-analyses published in the literature. Evidence-based data demonstrated good diagnostic performance of 18F-FDG PET/CT for several inflammatory and infectious diseases, in particular cardiovascular infectious and inflammatory diseases and some musculoskeletal infections. Conclusions Evidence-based data about the diagnostic performance of 18F-FDG PET/CT in infectious and inflammatory diseases are increasing, with good diagnostic performance of this imaging method for some indications. More prospective multicenter studies and cost-effective analyses are warranted.
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Imaging acquisition technique influences interpretation of positron emission tomography vascular activity in large-vessel vasculitis. Semin Arthritis Rheum 2019; 50:71-76. [PMID: 31375256 DOI: 10.1016/j.semarthrit.2019.07.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 07/17/2019] [Accepted: 07/22/2019] [Indexed: 11/20/2022]
Abstract
OBJECTIVES To determine the impact of imaging acquisition time on interpretation of disease activity on 18F-fluorodeoxyglucose positron emission tomography (PET) in large-vessel vasculitis (LVV) and assess the relationship between clinical features and image acquisition time. METHODS Patients with giant cell arteritis (GCA) and Takayasu's arteritis (TAK) were recruited into a prospective, observational cohort. After a single injection of FDG, all patients underwent two sequential PET scans at one and two-hour time points. Images were interpreted for active vasculitis by subjective assessment, qualitative assessment, and semi-quantitative assessment. Agreement was assessed by percent agreement, Cohen's kappa, and McNemar's test. Multivariable logistic regression identified associations between PET activity and clinical variables. RESULTS 79 patients (GCA = 44, TAK = 35) contributed 168 paired one and two-hour PET studies. A total of 94 out of 168 scans (56%) were interpreted as active at the one-hour time point, and 129 scans (77%) were interpreted as active at the two-hour time point (p < 0.01). Associations between clinical variables and PET activity categories (dual inactive, delayed active, dual active) were evaluated. Using multivariable nominal regression, clinically active disease was significantly more common in patients in the delayed active group (Odds Ratio 1.94, 95%CI 1.13-3.53; p = 0.02) and the dual active group (Odds Ratio 1.71, 95%CI 1.06-2.93; p = 0.04) compared to the dual inactive group. CONCLUSIONS Imaging protocol significantly influences interpretation of PET activity in LVV. A substantial proportion of patients with LVV have PET activity only detected by delayed imaging. These patients were significantly more likely to have concomitant clinically-determined active disease.
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223
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Rahman WT, Wale DJ, Viglianti BL, Townsend DM, Manganaro MS, Gross MD, Wong KK, Rubello D. The impact of infection and inflammation in oncologic 18F-FDG PET/CT imaging. Biomed Pharmacother 2019; 117:109168. [PMID: 31334700 PMCID: PMC7104808 DOI: 10.1016/j.biopha.2019.109168] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 06/22/2019] [Accepted: 06/25/2019] [Indexed: 12/30/2022] Open
Abstract
Sites of infection and inflammation can be misleading in oncology PET/CT imaging because these areas commonly show 18F-FDG activity. Caution in the interpretation must be taken to avoid the misdiagnosis of malignancy. Utilization of both CT findings as well as patient history can help differentiate benign infectious and inflammatory processes from malignancy, although occasionally additional work-up may be required. This article discusses the mechanism of 18F-FDG uptake in infection and inflammation with illustrative examples.
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Affiliation(s)
- W Tania Rahman
- Nuclear Medicine Division, Department of Radiology, University of Michigan Hospital, Ann Arbor, MI, USA
| | - Daniel J Wale
- Nuclear Medicine Division, Department of Radiology, University of Michigan Hospital, Ann Arbor, MI, USA; Nuclear Medicine Service, Department of Veterans Affairs Health System, Ann Arbor, MI, USA.
| | - Benjamin L Viglianti
- Nuclear Medicine Division, Department of Radiology, University of Michigan Hospital, Ann Arbor, MI, USA; Nuclear Medicine Service, Department of Veterans Affairs Health System, Ann Arbor, MI, USA
| | - Danyelle M Townsend
- Division of Drug Discovery and Pharmaceutical Sciences, Medical University of South Carolina, USA
| | - Matthew S Manganaro
- Nuclear Medicine Division, Department of Radiology, University of Michigan Hospital, Ann Arbor, MI, USA
| | - Milton D Gross
- Nuclear Medicine Division, Department of Radiology, University of Michigan Hospital, Ann Arbor, MI, USA; Nuclear Medicine Service, Department of Veterans Affairs Health System, Ann Arbor, MI, USA
| | - Ka Kit Wong
- Nuclear Medicine Division, Department of Radiology, University of Michigan Hospital, Ann Arbor, MI, USA
| | - Domenico Rubello
- Department of Nuclear Medicine, Radiology, Neuroradiology, Interventional Radiology, Pathology, Santa Maria della Misericordia Hospital, Rovigo, Italy.
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224
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Zanoni L, Varani S, Attard L, Morigi JJ, Vanino E, Ortalli M, Fonti C, Viale P, Re MC, Fanti S, Ambrosini V. 18F-FDG PET/CT in visceral leishmaniasis: uptake patterns in the context of a multiannual outbreak in Northern Italy. Ann Nucl Med 2019; 33:716-723. [PMID: 31254270 DOI: 10.1007/s12149-019-01381-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Accepted: 06/18/2019] [Indexed: 12/21/2022]
Abstract
OBJECTIVES Visceral leishmaniasis (VL) is the most severe manifestation of the infection caused by the protozoan Leishmania, recently on increase in Italy and Spain. The aim of the study was to describe FDG uptake patterns in VL patients (pts) who underwent 18F-FDG PET/CT. METHODS A retrospective monocentric study of pts who underwent FDG PET/CT between 2008 and 2017 and later diagnosed with VL was performed. Semi-quantitative parameters were calculated in FDG-positive lesions: SUVmax, SUVmax spleen/SUVmax liver ratio (SLR), SUVmax focal/diffuse spleen ratio (FDR). RESULTS Overall, 23 pts were included. PET/CT was negative in 2 immunocompromised pts, positive in 21/23 (91%) [6 spleen only, 2 spleen + nodes, 7 spleen + bone marrow (BM), 4 spleen + BM + nodes, 1 spleen + BM + lung, 1 BM only + nodes, 2 nodes only]. Splenic involvement was demonstrated in 20/23 (87%) pts. Two different splenic patterns were observed: diffuse (13/20 pts, mean spleen SUVmax = 7.3 ± 4.2 [4.0-14.1], mean SLR = 2.2 ± 1.6 [1.3-6.7]) and focal over diffuse (7/20 pts, mean SUVmax = 12.6 ± 4.5 [9.5-20.5], mean SLR = 2.8 ± 0.8 [2.1-4.4], mean FDR = 2.1 ± 0.8 [1.2-3.6]). Extra-splenic FDG-avid findings were detected in 15/21 pts (65%): bone marrow in 13/15 (mean SUVmax = 4.0 ± 1.3 [2.8-6.0]), nodes in 67/15 and lung in 1/15. CONCLUSIONS PET/CT demonstrated splenic FDG uptake in all immunocompetent VL pts; two splenic patterns (diffuse/focal over diffuse) were observed and indistinguishable from splenic involvement by other disorders. The most frequent extra-splenic FDG-positive sites were BM and lymph nodes. Considering the potential disease aggressiveness and recent outbreaks in north-eastern Italy, VL should be considered in the differential diagnosis of FDG-positive splenic findings in pts from endemic areas or reporting travels to endemic countries.
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Affiliation(s)
- Lucia Zanoni
- Nuclear Medicine, S.Orsola-Malpighi Hospital, Azienda ospedaliero-universitaria di Bologna, Policlinico S.Orsola-Malpighi, Via Albertoni 15, 40138, Bologna, BO, Italy.
| | - Stefania Varani
- Unit of Microbiology, S.Orsola-Malpighi Hospital, Bologna, Italy.,Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Luciano Attard
- Unit of Infectious Diseases, S.Orsola-Malpighi Hospital, Bologna, Italy
| | - Joshua James Morigi
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy.,PET/CT Unit, Royal Darwin Hospital, 105 Rocklands drive, Tiwi, NT, Australia
| | - Elisa Vanino
- Unit of Infectious Diseases, S.Orsola-Malpighi Hospital, Bologna, Italy.,Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Margherita Ortalli
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Cristina Fonti
- Nuclear Medicine, S.Orsola-Malpighi Hospital, Azienda ospedaliero-universitaria di Bologna, Policlinico S.Orsola-Malpighi, Via Albertoni 15, 40138, Bologna, BO, Italy
| | - Pierluigi Viale
- Unit of Infectious Diseases, S.Orsola-Malpighi Hospital, Bologna, Italy.,Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Maria Carla Re
- Unit of Microbiology, S.Orsola-Malpighi Hospital, Bologna, Italy.,Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Stefano Fanti
- Nuclear Medicine, S.Orsola-Malpighi Hospital, Azienda ospedaliero-universitaria di Bologna, Policlinico S.Orsola-Malpighi, Via Albertoni 15, 40138, Bologna, BO, Italy.,Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Valentina Ambrosini
- Nuclear Medicine, S.Orsola-Malpighi Hospital, Azienda ospedaliero-universitaria di Bologna, Policlinico S.Orsola-Malpighi, Via Albertoni 15, 40138, Bologna, BO, Italy.,Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
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225
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Sconfienza LM, Signore A, Cassar-Pullicino V, Cataldo MA, Gheysens O, Borens O, Trampuz A, Wörtler K, Petrosillo N, Winkler H, Vanhoenacker FMHM, Jutte PC, Glaudemans AWJM. Diagnosis of peripheral bone and prosthetic joint infections: overview on the consensus documents by the EANM, EBJIS, and ESR (with ESCMID endorsement). Eur Radiol 2019; 29:6425-6438. [PMID: 31250170 DOI: 10.1007/s00330-019-06326-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 05/27/2019] [Accepted: 06/12/2019] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Peripheral bone infection (PBI) and prosthetic joint infection (PJI) are two different infectious conditions of the musculoskeletal system. They have in common to be quite challenging to be diagnosed and no clear diagnostic flowchart has been established. Thus, a conjoined initiative on these two topics has been initiated by the European Society of Radiology (ESR), the European Association of Nuclear Medicine (EANM), the European Bone and Joint Infection Society (EBJIS), and the European Society of Clinical Microbiology and Infectious Diseases (ESCMID). The purpose of this work is to provide an overview on the two consensus documents on PBI and PJI that originated by the conjoined work of the ESR, EANM, and EBJIS (with ESCMID endorsement). METHODS AND RESULTS After literature search, a list of 18 statements for PBI and 25 statements for PJI were drafted in consensus on the most debated diagnostic challenges on these two topics, with emphasis on imaging. CONCLUSIONS Overall, white blood cell scintigraphy and magnetic resonance imaging have individually demonstrated the highest diagnostic performance over other imaging modalities for the diagnosis of PBI and PJI. However, the choice of which advanced diagnostic modality to use first depends on several factors, such as the benefit for the patient, local experience of imaging specialists, costs, and availability. Since robust, comparative studies among most tests do not exist, the proposed flowcharts are based not only on existing literature but also on the opinion of multiple experts involved on these topics. KEY POINTS • For peripheral bone infection and prosthetic joint infection, white blood cell and magnetic resonance imaging have individually demonstrated the highest diagnostic performance over other imaging modalities. • Two evidence- and expert-based diagnostic flowcharts involving variable combination of laboratory tests, biopsy methods, and radiological and nuclear medicine imaging modalities are proposed by a multi-society expert panel. • Clinical application of these flowcharts depends on several factors, such as the benefit for the patient, local experience, costs, and availability.
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Affiliation(s)
- Luca Maria Sconfienza
- IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161, Milan, Italy. .,Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy.
| | - Alberto Signore
- Nuclear Medicine Unit, Faculty of Medicine and Psychology, Department of Medical-Surgical Sciences and Translational Medicine, "Sapienza" University, Rome, Italy
| | - Victor Cassar-Pullicino
- Department of Diagnostic Imaging, The Robert Jones and Agnes Hunt Orthopaedic and District Hospital, Oswestry, Shropshire, UK
| | - Maria Adriana Cataldo
- Infectious Disease Unit, National Institute for Infectious Diseases "L. Spallanzani", IRCCS, Rome, Italy
| | - Olivier Gheysens
- Department of Nuclear Medicine and Molecular Imaging, University Hospitals Leuven, Leuven, Belgium
| | - Olivier Borens
- Division of Orthopaedic Surgery and Traumatology, Septic surgical unit, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Andrej Trampuz
- Center for Musculoskeletal Surgery (CMSC), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Klaus Wörtler
- Department of Diagnostic and Interventional Radiology, Technische Universität München, Munich, Germany
| | - Nicola Petrosillo
- Infectious Disease Unit, National Institute for Infectious Diseases "L. Spallanzani", IRCCS, Rome, Italy
| | - Heinz Winkler
- Osteitis-Centre, Privatklinik Döbling, Vienna, Austria
| | - Filip M H M Vanhoenacker
- Department of Radiology, Antwerp University Hospital and Antwerp University, Antwerp, Belgium.,AZ Sint-Maarten, Belgium, Mechelen, Belgium.,University of Ghent, Ghent, Belgium
| | - Paul C Jutte
- Department of Orthopaedic Surgery, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Andor W J M Glaudemans
- Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
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226
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The use of labelled leucocyte scintigraphy to evaluate chronic periprosthetic joint infections: a retrospective multicentre study on 168 patients. Eur J Clin Microbiol Infect Dis 2019; 38:1625-1631. [PMID: 31218592 PMCID: PMC6695364 DOI: 10.1007/s10096-019-03587-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 05/13/2019] [Indexed: 01/07/2023]
Abstract
Labelled leucocyte scintigraphy (LS) is regarded as helpful when exploring bone and joint infections. The aim of this study was to evaluate the utility of LS for the diagnosis of chronic periprosthetic joint infections (PJIs) in patients exhibiting arthroplastic loosening. One hundred sixty-eight patients were referred to centres for treatment of complex PJI. One hundred fifty underwent LS using 99mTc-HMPAO (LLS); 18 also underwent anti-granulocyte scintigraphy (AGS) and 13 additional SPECT with tomodensitometry imaging (SPECT-CT). The LS results were compared with bone scan data. For all, the final diagnoses were determined microbiologically; perioperative samples were cultured. LS values were examined, as well as sensitivity by microorganism, anatomical sites, and injected activity. LS results were also evaluated according to the current use of antibiotics or not. The sensitivity, specificity, and positive predictive value of LLS were 72%, 60%, and 80%, respectively. LLS performed better than did AGS. SPECT-CT revealed the accurate locations of infections. The sensitivity of LS was not significantly affected by the causative pathogen or the injected activity. No correlation was evident between the current antibiotic treatment and the LS value. The test was more sensitive for knee (84%) than hip arthroplasty (57%) but was less specific for knee (52% vs. 75%). Sensitivity and specificity of LLS varied by the location of infection bone scan provide no additional value in PJI diagnosis. Current antibiotic treatment seems to have no influence on LS sensitivity as well as labelling leukocyte activity or pathogens responsible for chronic PJI.
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227
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Mitchell KB, Fleming MM, Anderson PO, Giesbrandt JG, Noble L, Reece-Stremtan S, Bartick M, Calhoun S, Dodd S, Elliott-Rudder M, Kair LR, Lappin S, Lawrence RA, LeFort Y, Marinelli KA, Marshall N, Murak C, Myers E, Okogbule-Wonodi A, Roberts A, Rosen-Carole C, Rothenberg S, Schmidt T, Seo T, Sriraman N, Stehel EK, Fleur RS, Wight N, Winter L. ABM Clinical Protocol #30: Radiology and Nuclear Medicine Studies in Lactating Women. Breastfeed Med 2019; 14:290-294. [PMID: 31107104 DOI: 10.1089/bfm.2019.29128.kbm] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A central goal of the Academy of Breastfeeding Medicine is the development of clinical protocols for managing common medical problems that may impact breastfeeding success. These protocols serve only as guidelines for the care of breastfeeding mothers and infants and do not delineate an exclusive course of treatment or serve as standards of medical care. Variations in treatment may be appropriate according to the needs of an individual patient.
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Affiliation(s)
- Katrina B Mitchell
- 1 Presbyterian Healthcare Services-MD Anderson Cancer Network, Albuquerque, New Mexico
| | | | - Philip O Anderson
- 3 Division of Clinical Pharmacy, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California
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228
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Johnsrud K, Skagen K, Seierstad T, Skjelland M, Russell D, Revheim ME. 18F-FDG PET/CT for the quantification of inflammation in large carotid artery plaques. J Nucl Cardiol 2019; 26:883-893. [PMID: 29209949 PMCID: PMC6517604 DOI: 10.1007/s12350-017-1121-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 10/19/2017] [Indexed: 11/26/2022]
Abstract
BACKGROUND There is currently no consensus on the methodology for quantification of 18F-FDG uptake in inflammation in atherosclerosis. In this study, we explore different methods for quantification of 18F-FDG uptake in carotid atherosclerotic plaques and correlate the uptake values to histological assessments of inflammation. METHODS AND RESULTS Forty-four patients with atherosclerotic stenosis ≥70% of the internal carotid artery underwent 18F-FDG PET/CT. Maximum standardized uptake values (SUVmax) from all plaque-containing slices were collected. SUVmax for the single highest and the mean of multiple slices with and without blood background correction (by subtraction (cSUV) or by division (target-to-background ratio (TBR)) were calculated. Following endarterectomy 30 plaques were assessed histologically. The length of the plaques at CT was 6-32 mm. The 18F-FDG uptake in the plaques was 1.15-2.66 for uncorrected SUVs, 1.16-3.19 for TBRs, and 0.20-1.79 for cSUVs. There were significant correlations between the different uptake values (r = 0.57-0.99, P < 0.001). Methods with and without blood background correction showed similar, moderate correlations to the amount of inflammation assessed at histology (r = 0.44-0.59, P < 0.02). CONCLUSIONS In large stenotic carotid plaques, 18F-FDG uptake reflects the inflammatory status as assessed at histology. Increasing number of PET slices or background correction did not change the correlation.
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Affiliation(s)
- Kjersti Johnsrud
- Division of Radiology and Nuclear Medicine, Oslo University Hospital, Postbox 4950, Nydalen, 0424, Oslo, Norway.
- Institute of Clinical Medicine, University of Oslo, Postbox 1171, Blindern, 0318, Oslo, Norway.
| | - Karolina Skagen
- Department of Neurology, Oslo University Hospital, Postbox 4950, Nydalen, 0424, Oslo, Norway
| | - Therese Seierstad
- Division of Radiology and Nuclear Medicine, Oslo University Hospital, Postbox 4950, Nydalen, 0424, Oslo, Norway
| | - Mona Skjelland
- Department of Neurology, Oslo University Hospital, Postbox 4950, Nydalen, 0424, Oslo, Norway
| | - David Russell
- Institute of Clinical Medicine, University of Oslo, Postbox 1171, Blindern, 0318, Oslo, Norway
- Department of Neurology, Oslo University Hospital, Postbox 4950, Nydalen, 0424, Oslo, Norway
| | - Mona-Elisabeth Revheim
- Division of Radiology and Nuclear Medicine, Oslo University Hospital, Postbox 4950, Nydalen, 0424, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Postbox 1171, Blindern, 0318, Oslo, Norway
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229
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Role of 18F-FDG PET/CT in Restrictive Allograft Syndrome After Lung Transplantation. Transplantation 2019; 103:823-831. [DOI: 10.1097/tp.0000000000002393] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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230
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Inflammatory Activity of Tumoral Calcinosis in a Patient With Fever of Unknown Origin. Clin Nucl Med 2019; 44:e289-e290. [DOI: 10.1097/rlu.0000000000002497] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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231
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FDG PET/CT for Early Detection and Localization of Left Ventricular Assist Device Infection. JACC Cardiovasc Imaging 2019; 12:722-729. [DOI: 10.1016/j.jcmg.2018.01.024] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 01/11/2018] [Accepted: 01/29/2018] [Indexed: 12/15/2022]
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232
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Afzelius P, Nielsen OL, Schønheyder HC, Alstrup A, Hansen SB. An untapped potential for imaging of peripheral osteomyelitis in paediatrics using [ 18F]FDG PET/CT -the inference from a juvenile porcine model. EJNMMI Res 2019; 9:29. [PMID: 30903403 PMCID: PMC6430261 DOI: 10.1186/s13550-019-0498-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 03/11/2019] [Indexed: 12/25/2022] Open
Abstract
PURPOSE To examine parameters affecting the detection of osteomyelitis (OM) by [18F]FDG PET/CT and to reduce tracer activity in a pig model. BACKGROUND [18F]FDG PET/CT is recommended for the diagnosis of OM in the axial skeleton of adults. In children, OM has a tendency to become chronic or recurrent, especially in low-income countries. Early diagnosis and initiation of therapy are therefore essential. We have previously demonstrated that [18F]FDG PET/CT is promising in juvenile Staphylococcus aureus (S. aureus) OM of peripheral bones in a pig model, not failing even small lesions. When using imaging in children, radiation exposure should be balanced against fast diagnostics in the individual case. METHODS Twenty juvenile pigs were inoculated with S. aureus. One week after inoculation, the pigs were [18F]FDG PET/CT scanned. PET list-mode acquired data of a subgroup were retrospectively processed in order to simulate and examine the image quality obtainable with an injected activity of 132 MBq, 44 MBq, 13.2 MBq, and 4.4 MBq, respectively. RESULTS All lesions were detected by [18F]FDG PET and CT. Some lesions were very small (0.01 cm3), and others were larger (4.18 cm3). SUVmax was higher when sequesters (p = 0.023) and fistulas were formed (p < 0.0001). The simulated data demonstrated that it was possible to reduce the activity to 4.4 MBq without compromising image quality in pigs. CONCLUSIONS [18F]FDG PET/CT localized even small OM lesions in peripheral bones. It was possible to reduce the injected activity considerably without compromising image quality, impacting the applicability of PET/CT in peripheral OM in children.
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Affiliation(s)
- P. Afzelius
- Department of Diagnostic Imaging, Section of Clinical Physiology and Nuclear Medicine, North Zealand Hospital, Dyrehavevej 29, 3400 Hillerod, Denmark
- Department of Nuclear Medicine, Aalborg University Hospital, Aalborg, Denmark
| | - O. L. Nielsen
- Department of Veterinary and Animal Science, University of Copenhagen, Copenhagen, Denmark
| | - H. C. Schønheyder
- Department of Clinical Microbiology, Aalborg University Hospital, Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - A.K.O. Alstrup
- Department of Nuclear Medicine and PET, Aarhus University Hospital, Aarhus, Denmark
| | - S. B. Hansen
- Department of Nuclear Medicine and PET, Aarhus University Hospital, Aarhus, Denmark
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233
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Kloiber R, Koslowsky IL, Tchajkov I, Rabin HR. Pattern-Based Interpretation Criteria for 18F-Fludeoxyglucose Positron Emission Tomography/Computed Tomography in the Assessment of Pyogenic Spine Infection. Can Assoc Radiol J 2019; 69:397-408. [PMID: 30390960 DOI: 10.1016/j.carj.2018.06.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 06/01/2018] [Accepted: 06/11/2018] [Indexed: 12/17/2022] Open
Affiliation(s)
- Reinhard Kloiber
- Department of Radiology, University of Calgary, Foothills Medical Centre, Calgary, Alberta, Canada.
| | - Ingrid L Koslowsky
- Department of Radiology, University of Calgary, Foothills Medical Centre, Calgary, Alberta, Canada
| | - Ilja Tchajkov
- Department of Radiology, University of Calgary, Foothills Medical Centre, Calgary, Alberta, Canada
| | - Harvey R Rabin
- Departments of Medicine, and Microbiology, Immunology and Infectious Diseases, University of Calgary, Foothills Medical Centre, Calgary, Alberta, Canada
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234
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18F-FDG PET/CT in the Diagnosis and Management of Continuous Flow Left Ventricular Assist Device Infections: A Case Series and Review of the Literature. ASAIO J 2019; 64:e11-e19. [PMID: 28234643 PMCID: PMC5839716 DOI: 10.1097/mat.0000000000000552] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Supplemental Digital Content is available in the text. Implantable continuous flow left ventricular assist devices (LVADs) are increasingly used in end-stage heart failure treatment as a bridge-to-transplant and destination therapy (DT). However, LVADs still have major drawbacks, such as infections that can cause morbidity and mortality. Unfortunately, appropriate diagnosis of LVAD-related and LVAD-specific infections can be very cumbersome. The differentiation between deep and superficial infections is crucial in clinical decision-making. Despite a decade of experience in using fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) to diagnose various infections, its use in LVAD patients remains scarce. In this case series, we review the current evidence in literature and describe our single center experience using 18F-FDG PET/CT for the diagnosis and management of LVAD infections.
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235
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236
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FDG-PET/CT for Detecting an Infection Focus in Patients With Bloodstream Infection: Factors Affecting Diagnostic Yield. Clin Nucl Med 2019; 44:99-106. [PMID: 30516689 DOI: 10.1097/rlu.0000000000002381] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
PURPOSE To investigate the diagnostic performance of F-fluoro-2-deoxy-D-glucose (FDG) PET/ CT for the detection of an infection focus in patients with a bloodstream infection (BSI) and to identify factors influencing the diagnostic yield of FDG-PET/CT. METHODS This retrospective single-center study included 185 consecutive patients with a BSI who underwent an FDG-PET/CT scan for the detection of an infection focus between 2010 and 2017. The final diagnosis at hospital discharge was used as reference standard. Diagnostic performance of FDG-PET/CT for the detection of an infection focus was assessed, and logistic regression analyses were performed to identify factors associated with FDG-PET/CT yield. RESULTS An infection focus was identified on FDG-PET/CT in 120 (64.8%) of 185 patients. FDG-PET/CT achieved a sensitivity of 80.2%, specificity of 79.6%, positive predictive value of 90.8%, and a negative predictive value of 61.4% for detecting an infection focus in patients with a BSI. Blood cultures positive for enterococci (odds ratio, 0.14; P = 0.019) and days of antibiotic treatment before FDG-PET/CT (odds ratio, 0.94 per day increase; P = 0.014) were statistically significant independent predictors of a lower odds of detecting an infection focus on FDG-PET/CT. In patients who received antibiotics for less than 7 days before FDG-PET/CT, an infection focus was found in 71% (56/79). In patients who received antibiotics for 8 to 14 days before FDG-PET/CT, an infection focus was found in 52% (22/42). After 15 to 21 days of antibiotic treatment, an infection focus was found in 61% (8/13), and for 22 days or more, this declined to 38% (5/13). CONCLUSIONS FDG-PET/CT is a useful method for detecting an infection focus in patients with BSI. However, longer duration of antibiotic treatment before FDG-PET/CT and bacteremia with enterococci reduce the diagnostic yield of FDG-PET/CT. These factors should be taken into account when considering an FDG-PET/CT scan for this indication.
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237
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PET Radiopharmaceuticals for Specific Bacteria Imaging: A Systematic Review. J Clin Med 2019; 8:jcm8020197. [PMID: 30736324 PMCID: PMC6406348 DOI: 10.3390/jcm8020197] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 01/30/2019] [Accepted: 02/04/2019] [Indexed: 12/13/2022] Open
Abstract
Background: Bacterial infections are still one of the main factors associated with mortality worldwide. Many radiopharmaceuticals were developed for bacterial imaging, both with single photon emission computed tomography (SPECT) and positron emission tomography (PET) isotopes. This review focuses on PET radiopharmaceuticals, performing a systematic literature review of published studies between 2005 and 2018. Methods: A systematic review of published studies between 2005 and 2018 was performed. A team of reviewers independently screened for eligible studies. Because of differences between studies, we pooled the data where possible, otherwise, we described separately. Quality of evidence was assessed by Quality Assessment of Diagnostic Accuracy Studies (QUADAS) approach. Results: Eligible papers included 35 published studies. Because of the heterogeneity of animal models and bacterial strains, we classified studies in relation to the type of bacterium: Gram-positive, Gram-negative, Gram-positive and negative, others. Conclusions: Results highlighted the availability of many promising PET radiopharmaceuticals for bacterial imaging, despite some bias related to animal selection and index test, but few have been translated to human subjects. Results showed a lack of standardized infection models and experimental settings.
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238
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Sachpekidis C, Larribère L, Kopp-Schneider A, Hassel JC, Dimitrakopoulou-Strauss A. Can benign lymphoid tissue changes in 18F-FDG PET/CT predict response to immunotherapy in metastatic melanoma? Cancer Immunol Immunother 2019; 68:297-303. [PMID: 30478475 PMCID: PMC11028352 DOI: 10.1007/s00262-018-2279-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 11/23/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND An association between immune-related adverse events (irAEs) caused by immunotherapeutic agents and the clinical benefit of immunotherapy has been suggested. We retrospectively evaluated by means of 18F-FDG PET/CT lymphoid tissue changes in the mediastinal/hilar lymph nodes and the spleen in response to ipilimumab administration in metastatic melanoma. METHODS A total of 41 patients with unresectable metastatic melanoma underwent 18F-FDG PET/CT before the start of ipilimumab (baseline PET/CT), after two cycles (interim PET/CT) and at the end of treatment (late PET/CT). Data analysis was focused on the mediastinal/hilar lymph nodes and the spleen. The patients' best clinical response (BCR) was used as reference. RESULTS According to the BCR reference, 31 patients showed disease control (DC) and 10 patients showed progressive disease (PD). Mediastinal/hilar lymph node evaluation revealed that in total 4 patients in the interim or late PET/CT (10%) demonstrated a 'sarcoid-like lymphadenopathy' as response to treatment (LN-positive). All LN-positive patients responded to ipilimumab with DC. On the other hand, no significant differences between the DC and PD groups regarding both semi-quantitative and quantitative 18F-FDG PET spleen-related parameters at baseline and as response to treatment were detected. CONCLUSION Based on our findings, 10% patients in the interim or late PET/CT showed 'sarcoid-like lymphadenopathy' as response to treatment. All these patients showed disease control, implying a relation between the appearance of sarcoid-like lymphadenopathy and the clinical benefit of anti-CTLA-4 therapy. On the other hand, quantitative 18F-FDG PET analysis of the spleen showed a poor performance in predicting clinical benefit to ipilimumab.
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Affiliation(s)
- Christos Sachpekidis
- Clinical Cooperation Unit Nuclear Medicine, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69210, Heidelberg, Germany.
- Department of Nuclear Medicine, University Hospital Heidelberg, Heidelberg, Germany.
| | - Lionel Larribère
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, Mannheim, Germany
| | | | - Jessica C Hassel
- Department of Dermatology and National Center for Tumor Diseases, University Hospital Heidelberg, Heidelberg, Germany
| | - Antonia Dimitrakopoulou-Strauss
- Clinical Cooperation Unit Nuclear Medicine, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69210, Heidelberg, Germany
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Diaz-Ledezma C, Espinosa-Mendoza R, Gallo J, Glaudemans A, Gómez-García F, Goodman S, Kaminek M, Le Roux TLB, Llinás A, Nieslanikova E, Quinn L, Sculco P, Svoboda M. General Assembly, Diagnosis, Imaging: Proceedings of International Consensus on Orthopedic Infections. J Arthroplasty 2019; 34:S215-S223. [PMID: 30360979 DOI: 10.1016/j.arth.2018.09.073] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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240
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Consensus document for the diagnosis of prosthetic joint infections: a joint paper by the EANM, EBJIS, and ESR (with ESCMID endorsement). Eur J Nucl Med Mol Imaging 2019; 46:971-988. [PMID: 30683987 PMCID: PMC6450843 DOI: 10.1007/s00259-019-4263-9] [Citation(s) in RCA: 108] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 01/02/2019] [Indexed: 12/13/2022]
Abstract
Background For the diagnosis of prosthetic joint infection, real evidence-based guidelines to aid clinicians in choosing the most accurate diagnostic strategy are lacking. Aim and Methods To address this need, we performed a multidisciplinary systematic review of relevant nuclear medicine, radiological, orthopaedic, infectious, and microbiological literature to define the diagnostic accuracy of each diagnostic technique and to address and provide evidence-based answers on uniform statements for each topic that was found to be important to develop a commonly agreed upon diagnostic flowchart. Results and Conclusion The approach used to prepare this set of multidisciplinary guidelines was to define statements of interest and follow the procedure indicated by the Oxford Centre for Evidence-based Medicine (OCEBM). Electronic supplementary material The online version of this article (10.1007/s00259-019-4263-9) contains supplementary material, which is available to authorized users.
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241
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Glaudemans AWJM, Jutte PC, Cataldo MA, Cassar-Pullicino V, Gheysens O, Borens O, Trampuz A, Wörtler K, Petrosillo N, Winkler H, Signore A, Sconfienza LM. Consensus document for the diagnosis of peripheral bone infection in adults: a joint paper by the EANM, EBJIS, and ESR (with ESCMID endorsement). Eur J Nucl Med Mol Imaging 2019; 46:957-970. [PMID: 30675635 PMCID: PMC6450853 DOI: 10.1007/s00259-019-4262-x] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 01/02/2019] [Indexed: 01/15/2023]
Abstract
Introduction In adults with a suspicion of peripheral bone infection, evidence-based guidelines in choosing the most accurate diagnostic strategy are lacking. Aim and methods To provide an evidence-based, multidisciplinary consensus document on the diagnostic management of adult patients with PBIs, we performed a systematic review of relevant infectious, microbiological, orthopedic, radiological, and nuclear medicine literature. Delegates from four European societies (European Bone and Joint Infection Society, European Society of Microbiology and Infectious Diseases, European Society or Radiology, and European Association of Nuclear Medicine) defined clinical questions to be addressed, thoroughly reviewed the literature pertinent to each of the questions, and thereby evaluated the diagnostic accuracy of each diagnostic technique. Inclusion of the papers per statement was based on a PICO (Population/problem – Intervention/indicator – Comparator – Outcome) question following the strategy reported by the Oxford Centre for Evidence-based Medicine. For each statement, the level of evidence was graded according to the 2011 review of the Oxford Centre for Evidence-based Medicine. All approved statements were addressed taking into consideration the available diagnostic procedures, patient acceptance, tolerability, complications, and costs in Europe. Finally, a commonly agreed-upon diagnostic flowchart was developed. Electronic supplementary material The online version of this article (10.1007/s00259-019-4262-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Andor W J M Glaudemans
- Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Center, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9700 RB, Groningen, The Netherlands.
| | - Paul C Jutte
- Department of Orthopaedic Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Maria Adriana Cataldo
- Clinical and Research Department on of Infectious Diseases, "L. Spallanzani", IRCCS-Rome, Rome, Italy
| | - Victor Cassar-Pullicino
- Department of Diagnostic Imaging, Robert Jones & Agnes Hunt Orthopaedic Hospital NHS Trust, Oswestry, Shropshire, UK
| | - Olivier Gheysens
- Department of Nuclear Medicine and Molecular Imaging, University Hospitals Leuven, Leuven, Belgium
| | - Olivier Borens
- Division of Orthopaedic Surgery and Traumatology, Lausanne University Hospital, Lausanne, Switzerland
| | - Andrej Trampuz
- Center for Muskuloskeletal Surgery, Charité - Universitätsmedicin Berlin, Berlin, Germany
| | - Klaus Wörtler
- 69 Division Institut für Diagnostische und Interventionelle Radiologie, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany
| | - Nicola Petrosillo
- Clinical and Research Department on of Infectious Diseases, "L. Spallanzani", IRCCS-Rome, Rome, Italy
| | - Heinz Winkler
- Osteitis-Centre, Privatklinik Döbling, Vienna, Austria
| | - Alberto Signore
- Nuclear Medicine Unit, Faculty of Medicine and Psychology, Department of Medical-Surgical Sciences and Translational Medicine, "Sapienza" University, Rome, Italy
| | - Luca Maria Sconfienza
- Unit of Diagnostic and Interventional Radiology, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy.,Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
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242
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Martínez-Rodríguez I, González-Gay MA, Prieto-Peña D, Banzo I. Molecular imaging in large vessel vasculitis has come to stay. ANNALS OF TRANSLATIONAL MEDICINE 2019; 6:S2. [PMID: 30613578 DOI: 10.21037/atm.2018.08.26] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Isabel Martínez-Rodríguez
- Department of Nuclear Medicine, Marqués de Valdecilla University Hospital, Molecular Imaging Group (IDIVAL), University of Cantabria, Santander, Spain
| | - Miguel A González-Gay
- Department of Rheumatology, Marqués de Valdecilla University Hospital, Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases (IDIVAL), University of Cantabria, Santander, Spain.,Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Diana Prieto-Peña
- Department of Rheumatology, Marqués de Valdecilla University Hospital, Epidemiology, Genetics and Atherosclerosis Research Group on Systemic Inflammatory Diseases (IDIVAL), University of Cantabria, Santander, Spain
| | - Ignacio Banzo
- Department of Nuclear Medicine, Marqués de Valdecilla University Hospital, Molecular Imaging Group (IDIVAL), University of Cantabria, Santander, Spain
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243
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Tseng JR, Chang YH, Yang LY, Wu CT, Chen SY, Wan CH, Hsiao IT, Yen TC. Potential usefulness of 68Ga-citrate PET/CT in detecting infected lower limb prostheses. EJNMMI Res 2019; 9:2. [PMID: 30607646 PMCID: PMC6318156 DOI: 10.1186/s13550-018-0468-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 12/12/2018] [Indexed: 01/12/2023] Open
Abstract
Background Prosthetic joint infections may lead to failures of total joint arthroplasty. Radionuclide imaging can play a diagnostic role in identifying such infections, which require two-stage exchange arthroplasty (instead of simple revision surgery performed in non-infected cases). Although 18F-FDG PET/CT has emerged as a novel diagnostic tool in this setting, the clinical usefulness of 68Ga-citrate PET/CT has not been previously investigated. This single-center prospective study was designed to address this issue. Methods Between January 2016 and October 2017, we examined 34 patients with clinically proven or suspected prosthetic hip/knee joint infections scheduled to undergo surgery. All patients underwent 68Ga-citrate PET/CT scans and sequential 18F-FDG PET/CT imaging for comparative purposes. Intraoperative findings and the results of microbiological analyses of surgical specimens served as gold standard. The diagnostic results were examined according to (1) image interpretation based on radiotracer uptake patterns and (2) quantitative analysis using volumes of interest (VOIs) to calculate standard uptake values (SUVs) and metabolic volumes (MVs). Results A total of 26 (76%) patients were diagnosed as having infections. Based on radiotracer uptake pattern criteria, the sensitivity, specificity, and accuracy of 68Ga-citrate PET/CT and 18F-FDG PET/CT were 92%, 88%, and 91% and 100%, 38%, and 85%, respectively. MV was significantly higher in the infected group when 68Ga-citrate PET/CT was used (422.45 vs. 303.65 cm3, p = 0.027), whereas no significant differences were observed on 18F-FDG PET/CT. According to receiver operating characteristic (ROC) curve analysis, a cut-off value of 370.86 for MV resulted in a sensitivity of 61.5% and a specificity of 87.5% (area under curve: 0.75, 95% confidence interval: 0.57–0.88, p = 0.035). Conclusions Subject to future confirmation, our data provide preliminary evidence that 68Ga-citrate PET/CT may have a complimentary role to 18F-FDG PET/CT in detecting prosthetic joint infections, being characterized by a higher specificity and the possibility to discriminate between an infectious condition and sterile inflammation. Trial registration This prospective study was registered at clinicaltrials.gov (registration number: NCT02855190).
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Affiliation(s)
- Jing-Ren Tseng
- Department of Nuclear Medicine and Center for Advanced Molecular Imaging and Translation, Chang Gung Memorial Hospital at Linkou, No. 5, Fu-Hsing ST., Kwei-Shan, Taoyuan, Taiwan.,Department of Medical Imaging and Radiological Science and Healthy Aging Center, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yu-Han Chang
- Bone and Joint Research Center and Department of Orthopaedic Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Lan-Yan Yang
- Biostatistics Unit, Clinical Trial Center, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Chen-Te Wu
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Szu-Yuan Chen
- Bone and Joint Research Center and Department of Orthopaedic Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Chih-Hsing Wan
- Department of Nuclear Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Ing-Tsung Hsiao
- Department of Nuclear Medicine and Center for Advanced Molecular Imaging and Translation, Chang Gung Memorial Hospital at Linkou, No. 5, Fu-Hsing ST., Kwei-Shan, Taoyuan, Taiwan. .,Department of Medical Imaging and Radiological Science and Healthy Aging Center, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Tzu-Chen Yen
- Department of Nuclear Medicine and Center for Advanced Molecular Imaging and Translation, Chang Gung Memorial Hospital at Linkou, No. 5, Fu-Hsing ST., Kwei-Shan, Taoyuan, Taiwan. .,Department of Medical Imaging and Radiological Science and Healthy Aging Center, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
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244
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Chung HW, Kim JH, Sung IK, Lee SY, Park HS, Shim CS, Bang HY, So Y, Lee EJ. FDG PET/CT to predict the curability of endoscopic resection for early gastric cancer. J Cancer Res Clin Oncol 2019; 145:759-764. [DOI: 10.1007/s00432-018-02832-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 12/21/2018] [Indexed: 12/14/2022]
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245
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Two decades of SPECT/CT - the coming of age of a technology: An updated review of literature evidence. Eur J Nucl Med Mol Imaging 2019; 46:1990-2012. [PMID: 31273437 PMCID: PMC6667427 DOI: 10.1007/s00259-019-04404-6] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 06/14/2019] [Indexed: 02/08/2023]
Abstract
PURPOSE Single-photon emission computed tomography (SPECT) combined with computed tomography (CT) was introduced as a hybrid SPECT/CT imaging modality two decades ago. The main advantage of SPECT/CT is the increased specificity achieved through a more precise localization and characterization of functional findings. The improved diagnostic accuracy is also associated with greater diagnostic confidence and better inter-specialty communication. METHODS This review presents a critical assessment of the relevant literature published so far on the role of SPECT/CT in a variety of clinical conditions. It also includes an update on the established evidence demonstrating both the advantages and limitations of this modality. CONCLUSIONS For the majority of applications, SPECT/CT should be a routine imaging technique, fully integrated into the clinical decision-making process, including oncology, endocrinology, orthopaedics, paediatrics, and cardiology. Large-scale prospective studies are lacking, however, on the use of SPECT/CT in certain clinical domains such as neurology and lung disorders. The review also presents data on the complementary role of SPECT/CT with other imaging modalities and a comparative analysis, where available.
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246
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Blaizot R, Fernandez P, Cogrel O, Beylot-Barry M, Pham-Ledard A. Three cases of bacterial osteomyelitis associated with hidradenitis suppurativa. Br J Dermatol 2018; 180:1537-1538. [PMID: 30588606 DOI: 10.1111/bjd.17593] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- R Blaizot
- Department of Dermatology, Centre Hospitalier Universitaire de Bordeaux, F-33000, Bordeaux, France.,EA 3593, Ecosystèmes Amazoniens et Pathologies Tropicales, University of French Guiana, Cayenne, French Guiana
| | - P Fernandez
- Department of Nuclear Imaging, Centre Hospitalier Universitaire de Bordeaux, F-33000, Bordeaux, France.,INCIA, UMR CNRS 5287, University of Bordeaux, Bordeaux, France
| | - O Cogrel
- Department of Dermatology, Centre Hospitalier Universitaire de Bordeaux, F-33000, Bordeaux, France
| | - M Beylot-Barry
- Department of Dermatology, Centre Hospitalier Universitaire de Bordeaux, F-33000, Bordeaux, France.,INSERM U1053, Bordeaux Research in Translational Oncology, Team 3 - Oncogenesis of cutaneous lymphomas, University of Bordeaux, Bordeaux, France
| | - A Pham-Ledard
- Department of Dermatology, Centre Hospitalier Universitaire de Bordeaux, F-33000, Bordeaux, France.,INSERM U1053, Bordeaux Research in Translational Oncology, Team 3 - Oncogenesis of cutaneous lymphomas, University of Bordeaux, Bordeaux, France
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247
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Haykal T, Rahman Al Bizri A, Dawood T, Osterholzer D. Salmonella Typhimurium para-aortic root abscess managed non-surgically. IDCases 2018; 15:e00476. [PMID: 30591906 PMCID: PMC6307035 DOI: 10.1016/j.idcr.2018.e00476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 12/06/2018] [Accepted: 12/06/2018] [Indexed: 11/18/2022] Open
Abstract
Introduction Para-aortic root abscess is a destructive vascular condition that can result in significant morbidity and mortality. We describe a rare case of para-aortic root abscess due to Salmonella Typhimurium that was successfully managed medically. Presentation of case A 72-year-old diabetic man with a prosthetic aortic graft presented with fever and expressive aphasia with left sided weakness. Magnetic resonance imaging (MRI) of the brain showed multiple embolic cerebral vascular accidents. Computed tomography angiography (CTA) of the chest showed a 5.7 × 2.7 cm (cm) para-aortic root abscess. Blood cultures grew Salmonella Typhimurium. The patient was started on ceftriaxone initially, and then ciprofloxacin was added on day 5. Given an unacceptably high risk of mortality expected with surgery, the patient was managed medically. After five months of both ceftriaxone and ciprofloxacin, ceftriaxone was stopped. Twelve months later, the patient is doing well on ciprofloxacin alone with a plan for lifelong suppression. Discussion Cases of para-aortic root abscess due to Salmonella Typhimurium have not been reported in the literature. There are no guidelines to dictate the antibiotic choice or management of para-aortic root abscess due to Salmonella Typhimurium. Conclusion This report adds to the body of literature regarding the treatment of this infection including successful non-surgical management.
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Affiliation(s)
- Tarek Haykal
- Hurley Medical Center, Department of Internal Medicine, Flint, MI, USA
- Michigan State University, College of Human Medicine, East Lansing, MI, USA
- Corresponding author at: Hurley Medical Center, Department of Internal Medicine, Flint, MI, USA.
| | - Abdul Rahman Al Bizri
- American University of Beirut, Department of Internal Medicine, Division of Infectious Diseases, Beirut, Lebanon
| | - Thair Dawood
- Hurley Medical Center, Department of Internal Medicine, Flint, MI, USA
- Michigan State University, College of Human Medicine, East Lansing, MI, USA
| | - Danielle Osterholzer
- Hurley Medical Center, Department of Internal Medicine, Flint, MI, USA
- Michigan State University, College of Human Medicine, East Lansing, MI, USA
- Hurley Medical Center, Division of Infectious Diseases, Flint, MI, USA
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248
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Kiernan MS, Delbeke D. What Lies Within?: Imaging to Detect Ventricular Assist Device Infection. JACC Cardiovasc Imaging 2018; 12:730-732. [PMID: 30553668 DOI: 10.1016/j.jcmg.2018.04.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 04/04/2018] [Indexed: 01/30/2023]
Affiliation(s)
- Michael S Kiernan
- Division of Cardiology and the CardioVascular Center, Tufts Medical Center, Boston Massachusetts.
| | - Dominique Delbeke
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, Tennessee
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Poststernotomy Complications: A Multimodal Review of Normal and Abnormal Postoperative Imaging Findings. AJR Am J Roentgenol 2018; 211:1194-1205. [DOI: 10.2214/ajr.18.19782] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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250
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Garrido Durán C, Payeras Capó MA, García Caparrós C, Giménez García M, Daumal Domenech J. Clinical-endoscopic relevance of incidental colorectal lesions detected by PET-CT. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2018; 110:434-439. [PMID: 29976073 DOI: 10.17235/reed.2018.4719/2016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIM to determine the proportion of incidental colon lesions detected by PET-CT and their correlation with the endoscopic and histological findings. In addition, to determine the maximum standardized uptake value (SUVmax) that can discriminate between benign and malignant lesions in our series of cases. METHODS this was a retrospective study of 3,000 patients evaluated by PET-CT for staging or response to treatment of primary neoplasms, between 2011 and 2015. Patients with incidental uptake in the colon were included in the study. Exclusion criteria included an incomplete, poorly prepared or abandoned colonoscopy, inflammatory bowel disease and treatment with metformin. RESULTS the study cohort comprised 71 patients evaluated by PET-CT and subsequently analyzed by endoscopy; 69% were male with a mean age of 65.77 ± 11.2. The rate of incidental colon lesions found by PET-CT was 1.73%, with 52 incidental colonic uptakes reported in 50 patients. The location of the uptake was the rectum (19.23%), sigmoid colon (34.62%), descending colon (13.46%), transverse colon (1.9%), ascending colon (19.23%), cecum (9.62%) and ileocolic anastomosis (1.92%). Thirty-five pathological colonoscopies (71.15%) were identified: the findings included five neoplasms (13.51%), two inflammatory lesions (5.4%) and 30 adenomatous polyps (81.1%). Significant differences were found between neoplastic SUVmax (11.7 g/ml; p = 0.03) and polyps (9.26 g/ml; p = 0.04) in relation to inflammatory lesions and normal endoscopies (6.05 g/ml). There were no differences in terms of the size of the polyps, nor the presence or absence of high grade dysplasia (p = 0.12 and 0.33). Both PET-CT and endoscopy proved consistent for locating lesions (k 0.90; CI 95% 0.86-0.93). CONCLUSION there is a good correlation between the findings identified by PET-CT and the endoscopic study. In our study, a SUVmax > 11 g/ml suggests a malignant pathology, which aids the prioritization of an endoscopic study.
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