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Dharia AA, Guillotte AR, De Stefano FA, Birney MJ, Rouse AG, Ohiorhenuan IE. Coronal Deformity is Associated With Uptake on Single Photon Emission Computed Tomography in Patients With Low Back Pain. Global Spine J 2024:21925682241265302. [PMID: 38896877 DOI: 10.1177/21925682241265302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/21/2024] Open
Abstract
STUDY DESIGN Retrospective Cohort Study. OBJECTIVE Single Photon Emission Computed Tomography/Computed Tomography (SPECT/CT) is emerging as a valuable imaging test for identifying pain generators within the lumbar spine. The relationship between radiotracer uptake on SPECT/CT and anatomic biomechanical parameters has not been previously studied. METHODS We performed a retrospective review of all patients seen at our institution between 2021-2023 who obtained SPECT/CT scans for workup of thoracolumbar back pain. Patient data including demographic, clinical symptoms, and surgical history were collected. Radiology reports were reviewed for evidence of pathologic degeneration and increased bone metabolism on SPECT/CT. Biomechanical parameters were measured from standing scoliosis plain radiographs. Patients were stratified into two cohorts by either presence or absence of asymmetric coronal uptake on SPECT/CT. RESULTS 160 patients met inclusion criteria. Patients were primarily male (55%) with average age 55 ± 15 years. 87 (54%) patients demonstrated asymmetric uptake on SPECT/CT. These patients were older (P < 0.001), but with similar gender, prior fusion history, sacroiliitis, adjacent segment degeneration, and pseudoarthrosis (P > 0.05). This cohort had more disc disease, facet arthropathy, and greater degree of coronal scoliosis and coronal imbalance (P < 0.001). There were significantly more sites of uptake in the asymmetric cohort, and uptake was preferentially observed in the concavity of the lumbar curve (P < 0.001). There were no significant differences in sagittal balance or spinopelvic mismatch between cohorts (P > 0.05). CONCLUSION Asymmetric uptake on SPECT/CT was associated with coronal deformity in patients with low back pain. Further prospective studies are warranted to assess the effect of coronal deformity on pain generation.
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Affiliation(s)
- Anand A Dharia
- Department of Neurological Surgery, University of Kansas Medical Center, Kansas, KS, USA
| | - Andrew R Guillotte
- Department of Neurological Surgery, University of Kansas Medical Center, Kansas, KS, USA
| | - Frank A De Stefano
- Department of Neurological Surgery, University of Kansas Medical Center, Kansas, KS, USA
| | - Mia J Birney
- University of Kansas School of Medicine, Kansas, KS, USA
| | - Adam G Rouse
- Department of Neurological Surgery, University of Kansas Medical Center, Kansas, KS, USA
| | - Ifije E Ohiorhenuan
- Department of Neurological Surgery, University of Kansas Medical Center, Kansas, KS, USA
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2
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Jankowski PP, Chan JP. Advances in Imaging (Intraop Cone-Beam Computed Tomography, Synthetic Computed Tomography, Bone Scan, Low-Dose Protocols). Neurosurg Clin N Am 2024; 35:161-172. [PMID: 38423732 DOI: 10.1016/j.nec.2023.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Spine surgery has seen a rapid advance in the refinement and development of 3-dimensional and nuclear imaging modalities in recent years. Cone-beam CT has proven to be a valuable tool for improving the accuracy of pedicle screw placement. The use of synthetic CT and low-dose CT have also emerged as modalities which allow for little to no radiation while streamlining imaging workflows. Bone scans also serve to provide functional information about bone metabolism in both the preoperative and postoperative monitoring phases.
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Affiliation(s)
- Pawel P Jankowski
- Hoag Spine Center, 520 Superior Avenue, #300, Newport Beach, CA 92663, USA.
| | - Justin P Chan
- University of California, Irvine, 101 The City Drive South, Orange, CA 92868, USA
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Awosika T, Davidar AD, Hersh AM, Menta A, Weber-Levine C, Alomari S, Khan MA, Theodore N. SPECT/CT and PET/CT for the Evaluation of Persistent or Recurrent Pain After Spine Surgery: A Systematic Review and Case Series. World Neurosurg 2024; 182:e344-e359. [PMID: 38013108 DOI: 10.1016/j.wneu.2023.11.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 11/29/2023]
Abstract
OBJECTIVE The differential diagnosis for postoperative back pain is broad, and conventional imaging modalities are not always conclusive. Therefore, we performed a systematic review of the literature and present case studies describing the use of single-photon emission CT (SPECT)/CT or positron emission tomography (PET)/CT in the diagnosis of back pain following spine surgery. METHODS A systematic review was conducted according to PRISMA guidelines across 5 databases. Relevant keywords included PET/CT, bone SPECT/CT, and pseudarthrosis. The studies were assessed for diagnostic accuracy of the imaging technologies. RESULTS A total of 2,444 studies were screened, 91 were selected for full-text review, and 21 were ultimately included. Six retrospective studies investigated the use of SPECT/CT with a total sample size of 309 patients. Two of these studies used SPECT/CT to predict screw loosening in over 50% of patients. Eight studies examined the use of 18-fluoride sodium fluoride (18F-NaF) PET/CT. Among these studies, measures of diagnostic accuracy varied but overall demonstrated the ability of 18F-NaF PET/CT to detect screw loosening and pseudarthrosis. Seven studies examined 18F-fluorodeoxyglucose (FDG) PET/CT and supported its utility in the diagnosis of postoperative infections in the spine. CONCLUSIONS PET/CT and SPECT/CT are useful in the evaluation of postoperative pain of the spine, especially in patients for whom conventional imaging modalities yield inconclusive results. More diagnostic accuracy studies with strong reference standards are needed to compare hybrid imaging to conventional imaging.
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Affiliation(s)
- Tolulope Awosika
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - A Daniel Davidar
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Andrew M Hersh
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Arjun Menta
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Carly Weber-Levine
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Safwan Alomari
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Majid Aziz Khan
- Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Nicholas Theodore
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
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Karimi H, Rodrigues R, Patel S, Patel J, Kosarchuk J, Kryzanski J. A systematic review and update on diagnosis and treatment of new onset sacroiliac joint dysfunction after lumbar fusion. Acta Neurochir (Wien) 2024; 166:43. [PMID: 38280117 DOI: 10.1007/s00701-024-05918-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 11/20/2023] [Indexed: 01/29/2024]
Abstract
BACKGROUND Sacroiliac joint dysfunction (SIJD) after lumbar/lumbosacral fusion has become increasingly recognized as the utilization of lumbar fusion has grown. Despite the significant morbidity associated with this condition, uncertainty regarding its diagnosis and treatment remains. We aim to update the current knowledge of the etiology, diagnosis, and treatment of post-lumbar surgery SIJD. METHODS PRISMA guidelines were used to search the PubMed/Medline, Web of Science, Cochrane Reviews, Embase, and OVID databases for literature published in the last 10 years. The ROBIS tool was utilized for risk of bias assessment. Statistical analyses were performed using the R foundation. A Fisher's exact test was performed to determine the risk of SIJD based on operative technique, gender, and symptom onset timeline. Odds ratios were reported with 95% confidence intervals. A p-value [Formula: see text] 0.05 was considered statistically significant. RESULTS Seventeen publications were included. The incidence of new onset SIJD was 7.0%. The mean age was 56 years, and the follow-up length was 30 months. SIJD was more common with fixed lumbar fusion vs floating fusion (OR = 1.48 [0.92, 2.37], p = 0.083), fusion of [Formula: see text] 3 segments (p < 0.05), and male gender increased incidence of SIJD (OR = 1.93 [1.27, 2.98], p = 0.001). Intra-articular injection decreased the Visual Analogue Scale (VAS) score by 75%, while radiofrequency ablation (RFA) reduced the score by 90%. An open approach resulted in a 13% reduction in VAS score versus 68 and 29% for SIJ fixation using the iFuse and DIANA approaches, respectively. CONCLUSIONS Lumbar fusion predisposes patients to SIJD, likely through manipulation of the SIJ's biomechanics. Definitive diagnosis of SIJD remains multifaceted and a newer modality such as SPECT/CT may find a future role. When conservative measures are ineffective, RFA and SIJ fixation using the iFuse System yield the greatest improvement VAS and ODI.
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Affiliation(s)
- Helen Karimi
- Department of Neurosurgery, Tufts Medical Center, Tufts University School of Medicine, 800 Washington St, Boston, MA, 02111, USA.
| | - Rahul Rodrigues
- Department of Neurosurgery, Tufts Medical Center, Tufts University School of Medicine, 800 Washington St, Boston, MA, 02111, USA
| | - Shrey Patel
- Department of Neurosurgery, Tufts Medical Center, Tufts University School of Medicine, 800 Washington St, Boston, MA, 02111, USA
| | - Jainith Patel
- Department of Neurosurgery, Tufts Medical Center, Tufts University School of Medicine, 800 Washington St, Boston, MA, 02111, USA
| | - Jacob Kosarchuk
- Department of Neurosurgery, Tufts Medical Center, Tufts University School of Medicine, 800 Washington St, Boston, MA, 02111, USA
| | - James Kryzanski
- Department of Neurosurgery, Tufts Medical Center, Tufts University School of Medicine, 800 Washington St, Boston, MA, 02111, USA
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Huneidi M, Jankowski PP, Bouyer B, Damade C, Vital JM, Gille O, Boissière L. Contribution of MRI and imaging exams in the diagnosis of lumbar pseudarthrosis. Orthop Traumatol Surg Res 2024:103817. [PMID: 38246489 DOI: 10.1016/j.otsr.2024.103817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 10/25/2023] [Accepted: 01/16/2024] [Indexed: 01/23/2024]
Abstract
INTRODUCTION The diagnosis of pseudoarthrosis is based on imaging and clinical exam findings. The standard for pseudarthrosis diagnosis remains postoperative observation through computer tomography (CT) and patient's symptoms. This can be further augmented by dynamic X-ray imaging or nuclear positron emission tomography (PET) CT to demonstrate an absence of fusion by showing a persistence of mobility. However, there is not a uniform diagnostic approach that is a standard of care amongst spine practioners. The aim of this study is to describe the timeline and diagnostic analysis for pseudoarthrosis between the initial surgery and follow-up procedure. METHODS This is a single-center retrospective observational study. The aim was to enroll patients reoperated for pseudarthrosis after 1 or 2 level lumbar fusions, between August 1st, 2008 and August 1st, 2018. The exams were reviewed by one surgeon and one radiologist, defining a status either in favor of pseudarthrosis, or against it, or inconclusive, based on the radiological criteria mentioned below. We then investigated different combinations of exams and their specific chronology before a diagnosis was established. RESULTS Forty-four patients were included, 70.5% male and with a mean age of 47.3 years. The median time between the 2 surgeries was 23.7 months. Plain X-rays supported the diagnosis in 38.7% of cases, dynamic X-rays showed hypermobility in 50% of cases. The CT-scan demonstrated pseudarthrosis in 94,4% of cases. A MODIC 1 signal was observed in 87,2% of cases on MRI. SPECT-CT showed a tracer uptake in 70% of cases. CONCLUSION Reducing the time to reintervention is a key objective for improving the management and clinical outcomes of these patients. We suggest that MRI is an additional tool in combination with CT in the assessment of suspected mechanical pseudarthrosis, in order to optimize the diagnosis and shorten the time to revision surgery. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Maxime Huneidi
- Department of Orthopaedic Surgery, University Hospital of Bordeaux, Spinal Unit, Bordeaux, France.
| | | | - Benjamin Bouyer
- Department of Orthopaedic Surgery, University Hospital of Bordeaux, Spinal Unit, Bordeaux, France
| | - Camille Damade
- Department of Orthopaedic Surgery, University Hospital of Bordeaux, Spinal Unit, Bordeaux, France
| | - Jean-Marc Vital
- Department of Orthopaedic Surgery, University Hospital of Bordeaux, Spinal Unit, Bordeaux, France
| | - Olivier Gille
- Department of Orthopaedic Surgery, University Hospital of Bordeaux, Spinal Unit, Bordeaux, France
| | - Louis Boissière
- Department of Orthopaedic Surgery, University Hospital of Bordeaux, Spinal Unit, Bordeaux, France
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Nigh ED, Finkel RA, Sayari AJ, Lanman TH, Baron EM, Cuellar JM. An Atypical Presentation of Early Periprosthetic Infection After Cervical Disc Arthroplasty: A Case Report. JBJS Case Connect 2023; 13:01709767-202309000-00001. [PMID: 37418554 DOI: 10.2106/jbjs.cc.22.00679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2023]
Abstract
CASE A 22-year-old woman with Klippel-Feil syndrome who underwent cervical disc arthroplasty (CDA) presented 3 months postoperatively with worsening neck pain and radiculopathy. Work-up was negative for infection, but single-photon emission computed tomography revealed increased metabolic activity in the vertebral body below the implant. During revision, the implant was grossly loose and multiple cultures grew Cutibacterium acnes. She was treated with an antibiotic course and conversion to anterior fusion without recurrence. CONCLUSION This report highlights the rare presentation of an early periprosthetic infection after CDA caused by C. acnes.
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Affiliation(s)
- Evan D Nigh
- Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, Los Angeles, California
| | - Ryan A Finkel
- Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, Los Angeles, California
| | - Arash J Sayari
- Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, Los Angeles, California
| | - Todd H Lanman
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, California
| | - Eli M Baron
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, California
| | - Jason M Cuellar
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, California
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Thurston D, Hurley P, Raheel F, James S, Gadvi R, Botchu R, Gardner AC, Mehta JS. A Comparison of Magnetic Resonance Imaging and SPECT-CT Imaging in Complex Spine Pathology: Does SPECT-CT Provide Additional Diagnostic Information Over Magnetic Resonance Imaging? Global Spine J 2023:21925682231163812. [PMID: 36939636 DOI: 10.1177/21925682231163812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/21/2023] Open
Abstract
STUDY DESIGN Retrospective cohort study. OBJECTIVE Magnetic Resonance Imaging (MRI) is often regarded as the gold standard for spinal pathology, as it provides good structural visualisation. SPECT-CT, however, provides combined structural and functional information. There is a paucity of literature comparing SPECT-CT with MRI in the spine. Our aim was to determine whether SPECT-CT provides additional information to MRI in individuals with complex spinal pathology, including deformity, which altered management. METHODS We conducted a retrospective review of all individuals seen at our tertiary spinal unit that were investigated with both MRI and SPECT-CT of the spine between 2007-2020. We reviewed imaging reports, and collated diagnoses, surgical treatment and the relative contributions of MRI and SPECT-CT to management decisions. RESULTS 104 individuals identified, with a mean age of 30 years (89 females and 15 males). Diagnostic categories were adolescent, adult, and congenital deformity, degenerative pathology, and miscellaneous pathology. MRI returned positive findings in 58 (55.8%), and SPECT-CT in 41 (39.4%) cases. SPECT-CT identified 10 cases of facet joint degeneration, 5 of increased uptake around metalwork suggestive of loosening, 1 pseudoarthrosis, 1 partial failure of fusion and 1 osteoid osteoma which were not reported on MRI, all in individuals who had previously undergone spinal instrumentation. Despite this, SPECT-CT only altered management for 6 individuals (5.8%). CONCLUSIONS MRI is less useful in the setting of previous instrumentation due to metal artefact. Where MRI is inconclusive, particularly in individuals with previous spinal instrumentation, SPECT-CT may provide a diagnosis, but is not recommended as primary imaging.
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Affiliation(s)
- Daniel Thurston
- The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | - Patrick Hurley
- The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | - Falaq Raheel
- The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | - Steven James
- The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | - Rakesh Gadvi
- The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | - Rajesh Botchu
- The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | - Adrian C Gardner
- The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
| | - Jwalant S Mehta
- The Royal Orthopaedic Hospital NHS Foundation Trust, Birmingham, UK
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Review of the role of bone-SPECT/CT in tarsal coalitions. Nucl Med Commun 2023; 44:115-130. [PMID: 36630216 DOI: 10.1097/mnm.0000000000001643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Tarsal coalition (TC) is a congenital abnormal connection (fibrous, cartilaginous, or osseous) between two or more bones in the hind and midfoot, mostly consisting of calcaneonavicular or talocalcaneal coalition, and is often asymptomatic. However, TCs may result in foot motion limitation and pain with or without flatfoot (pes planus), arising in adolescents and young adults. Appropriate imaging is needed to pinpoint foot pain in the (suspected) TC, starting with plain radiographs. Still, normal radiographs do not exclude TCs. Computed tomography (CT) and MRI are frequently used advanced imaging techniques. CT alone has known limited sensitivity in cartilaginous and fibrous TCs and correlation between CT abnormalities and pain may be challenging, as solely anatomical changes in TCs are often asymptomatic. MRI can depict soft tissue abnormalities in TC with high accuracy. Nonetheless, after the implantation of metallic osteosynthesis material, MRI is often limited due to image distortion, signal loss, and misregistration. Bone scintigraphy with [99mTc]Tc-diphosphonate single photon emission computed tomography/CT (bone-SPECT/CT) is a known sensitive tool to detect osteoblastic bone pathology. However, the literature concerning bone-SPECT/CT in TC patients is limited. This article reviews bone-SPECT/CT patterns in TCs, how it complements other imaging techniques and their relation to clinical complaints. Bone-SPECT/CT excels in accurate bone pathology characterization in TC, confidently excluding synchronous lesions elsewhere, and offering optimal insight into osseous structures and 3D-localization of bone metabolism for surgery planning. Furthermore, even with implanted osteosynthesis material, bone-SPECT/CT can pinpoint the culprit pain generator, where MRI is either contra-indicated or considerably hampered.
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Shapovalov V, Lobo B, Liker M. SPECT/CT IMAGING FOR DIAGNOSIS AND MANAGEMENT OF FAILED CERVICAL SPINE SYNDROME. INTERDISCIPLINARY NEUROSURGERY 2022. [DOI: 10.1016/j.inat.2022.101699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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10
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Benson JC, Lehman VT, Sebastian AS, Larson NA, Nassr A, Diehn FE, Wald JT, Murthy NS. Successful fusion versus pseudarthrosis after spinal instrumentation: a comprehensive imaging review. Neuroradiology 2022; 64:1719-1728. [PMID: 35701631 DOI: 10.1007/s00234-022-02992-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 06/02/2022] [Indexed: 02/07/2023]
Abstract
PURPOSE Following spinal instrumentation and fusion, differentiating between successful arthrodesis and pseudoarthrosis on imaging can be challenging. Interpretation of such examinations requires understanding both the expected evolution of postoperative findings and the subtle indicators of pseudoarthrosis across multiple imaging modalities. Due to this level of intricacy, many clinicians lack familiarity with the subject beyond the more rudimentary concepts. METHODS This review provides an in-depth overview of the imaging of the post-operative spine, with particular emphasis on differentiating between pseudoarthrosis and arthrodesis. RESULTS A comprehensive overview of imaging of the post-operative spine is given, including the most common imaging modalities utilized, the expected post-operative findings, imaging findings in pseudoarthrosis, and imaging definitions of fusion. CONCLUSION Differentiating between pseudoarthrosis and arthrodesis in the postoperative spine is complex, and requires a robust understanding of various findings across many different modalities.
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Affiliation(s)
- John C Benson
- Department of Radiology, Mayo Clinic, 723 6th St. SW , Rochester, MN, 55902, USA.
| | - Vance T Lehman
- Department of Radiology, Mayo Clinic, 723 6th St. SW , Rochester, MN, 55902, USA
| | | | - Noelle A Larson
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Ahmad Nassr
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Felix E Diehn
- Department of Radiology, Mayo Clinic, 723 6th St. SW , Rochester, MN, 55902, USA
| | - John T Wald
- Department of Radiology, Mayo Clinic, 723 6th St. SW , Rochester, MN, 55902, USA
| | - Naveen S Murthy
- Department of Radiology, Mayo Clinic, 723 6th St. SW , Rochester, MN, 55902, USA
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Noriega-Álvarez E, Pena Pardo FJ, Jiménez Londoño GA, García Vicente A. Gamma camera imaging of musculoskeletal infections. Nucl Med Mol Imaging 2022. [DOI: 10.1016/b978-0-12-822960-6.00215-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Koppula BR, Morton KA, Al-Dulaimi R, Fine GC, Damme NM, Brown RKJ. SPECT/CT in the Evaluation of Suspected Skeletal Pathology. ACTA ACUST UNITED AC 2021; 7:581-605. [PMID: 34698290 PMCID: PMC8544734 DOI: 10.3390/tomography7040050] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/10/2021] [Accepted: 09/16/2021] [Indexed: 01/16/2023]
Abstract
Dedicated multi-slice single-photon emission computed tomography/computed tomography (SPECT/CT) cameras have become widely available and are becoming a mainstay of clinical practice. The integration of SPECT and CT allow for precise anatomic location of scintigraphic findings. Fusion imaging with SPECT/CT can improve both sensitivity and specificity by reducing equivocal interpretation in comparison to planar scintigraphy or SPECT alone. This review article addresses the technique, basic science principles, and applications of integrated SPECT/CT in the evaluation of musculoskeletal pathology.
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Radiographic evaluation of low back pain after lumbar fusion using Technetium-99 single-photon emission computed tomography: Impact on clinical decision-making and outcome. INTERDISCIPLINARY NEUROSURGERY 2021. [DOI: 10.1016/j.inat.2021.101089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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14
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Imaging Assessment of the Postoperative Spine: An Updated Pictorial Review of Selected Complications. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9940001. [PMID: 34113681 PMCID: PMC8154286 DOI: 10.1155/2021/9940001] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 04/25/2021] [Accepted: 05/05/2021] [Indexed: 02/05/2023]
Abstract
Imaging of the postoperative spine requires the identification of several critical points by the radiologist to be written in the medical report: condition of the underlying cortical and cancellous bone, intervertebral disc, and musculoskeletal tissues; location and integrity of surgical implants; evaluation of the success of decompression procedures; delineation of fusion status; and identification of complications. This article presents a pictorial narrative review of the most common findings observed in noninstrumented and instrumented postoperative spines. Complications in the noninstrumented spine were grouped in early (hematomas, pseudomeningocele, and postoperative spine infection) and late findings (arachnoiditis, radiculitis, recurrent disc herniation, spinal stenosis, and textiloma). Complications in the instrumented spine were also sorted in early (hardware fractures) and late findings (adjacent segment disease, hardware loosening, and implant migration). This review also includes a short description of the most used diagnostic techniques in postoperative spine imaging: plain radiography, ultrasound (US), computed tomography (CT), magnetic resonance (MR), and nuclear medicine. Imaging of the postoperative spine remained a challenging task in the early identification of complications and abnormal healing process. It is crucial to consider the advantages and disadvantages of the imaging modalities to choose those that provide more accurate spinal status information during the follow-up. Our review is directed to all health professionals dealing with the assessment and care of the postoperative spine.
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Mertens J, Lootens T, Vercruysse J, Van Den Bossche B, Berwouts D, Lambert B, Van den Wyngaert T. Bone SPECT/CT in the Evaluation of Painful Total Ankle Replacement: Validation of Localization Scheme and Preliminary Evaluation of Diagnostic Patterns. Clin Nucl Med 2021; 46:361-368. [PMID: 33630798 DOI: 10.1097/rlu.0000000000003545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE Third-generation total ankle replacement (TAR) is an increasingly popular and effective treatment for end-stage osteoarthritis, yet identifying causes of failure remains challenging. We evaluated integrated bone SPECT/CT in recurrent pain after TAR by validating a standardized reporting scheme, identifying uptake patterns, and assessing diagnostic performance and impact on clinical management. PATIENTS AND METHODS A total of 24 TARs in 16 patients with persistent or recurrent pain received integrated bone SPECT/CT using diagnostic CT settings. Images were retrospectively reviewed, and a novel localization scheme was validated by assessing interrater agreement. Distinct uptake patterns were identified, and diagnostic test characteristics were estimated. Reference standard consisted of clinical follow-up, laboratory findings, and subsequent procedures, including revision surgery. RESULTS Standardized scoring of bone SPECT/CT uptake was highly reproducible (intraclass correlation coefficient, 0.79; 95% confidence interval [CI], 0.75-0.82). The final diagnoses were gutter impingement (n = 12), periprosthetic (stress) fracture (n = 5), loosening (n = 5), tarsal arthritis (n = 1), and erysipelas (n = 1). Overall, the diagnostic test characteristics of bone SPECT/CT were as follows: sensitivity of 100% (95% CI, 82%-100%), specificity of 80% (95% CI, 28%-99%), and accuracy of 96% (95% CI, 79%-100%). Gutter impingement, periprosthetic fracture, and loosening were correctly identified in all cases revealing distinct uptake patterns. Importantly, persistent diffuse uptake was frequently observed, warranting cautious interpretation. Bone SPECT/CT impacted clinical management in 86%, with symptomatic improvement in 83% of patients. CONCLUSIONS Integrated bone SPECT/CT of painful TARs may benefit from standardized localization to reveal distinct uptake patterns representing common complications after TAR. Initial results show highly promising diagnostic value with potentially important impact on clinical management.
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Nuclear Medicine in the diagnosis of pathologies of the spine: the role of hybrid imaging. Rev Esp Med Nucl Imagen Mol 2021. [DOI: 10.1016/j.remnie.2020.10.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Nuclear Medicine in the diagnosis of pathologies of the spine: role of hybrid imaging. Rev Esp Med Nucl Imagen Mol 2020; 40:37-49. [PMID: 33041242 DOI: 10.1016/j.remn.2020.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/31/2020] [Accepted: 08/31/2020] [Indexed: 11/24/2022]
Abstract
Clinical problems in the human spine are still common in our society, often causing pain and can also limit movement. Back pain is a very common clinical entity, although difficult to diagnose due to its multifactorial nature. There are multiple processes that can alter the structure of the spine, injure vertebrae and/or the surrounding tissue. For the study of the spine, image diagnosis is essential, and within this, molecular hybrid techniques play an important role by providing us with an image of functional and morphological fusion. Among these, SPECT/CT is key in the diagnosis of traumatic and stress pathology, allowing us to locate hidden vertebral fractures, and is also very useful in degenerative and post-surgical pathology. On the other hand, PET/CT with 18F-FDG also plays an important role in the management and monitoring of infectious and oncological processes. This review describes the application of these hybrid techniques in the different pathologies of the spine and the findings of their images, being very useful for the diagnostic assessment and therapeutic management of the patient.
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Dang L, Zhu J, Liu Z, Liu X, Jiang L, Wei F, Song C. A new approach to the treatment of spinal instability: Fusion or structural reinforcement without surgery? Med Hypotheses 2020; 144:109900. [PMID: 32562916 DOI: 10.1016/j.mehy.2020.109900] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/24/2020] [Accepted: 05/28/2020] [Indexed: 02/06/2023]
Abstract
Spinal instability related low back pain is a common condition resulting from degeneration and loss of stiffness of the intervertebral joint. In order to restore stability, highly invasive surgical fusion is needed for patients who are not responding to conservative treatment. Given the risk and complications of surgery, there has been the urge for improvement with a less invasive solution. Formation of vertebral body osteophytes is a common observation that has been treated as a degenerative condition. However, recent studies have associated it with reduced motion of spinal segments. Unlike the traditional view, we regard it as adaptive reactions aiming to repair and hypothesize that the spinal segments could be stabilized or fused by intentionally induced osteophytes growth at the mobile parts of the intervertebral joint. This could be achieved by injecting Bone Morphogenetic Proteins to the anterior ends of the vertebral bodies and/or the facet joints on both sides of two consecutive vertebrae percutaneously. If verified, it would be the first time that fusion could be achieved without surgery. Hence it would provide a valuable alternative to current treatments of spinal instability. Preliminary test in favor of this hypothesis is presented and we recommend that a formal study with sufficient number of samples is needed for verification.
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Affiliation(s)
- Lei Dang
- Department of Orthopedics, Peking University 3rd Hospital, Beijing Key Laboratory of Spinal Disease Research, No. 49 North Garden Rd., Haidian District, Beijing 100191, PR China
| | - Jinglin Zhu
- Department of Orthopedics, Beijing Shijitan Hospital, No. 10 Tieyi Rd., Yangfangdian Subdistrict, Haidian District, Beijing, PR China
| | - Zhongjun Liu
- Department of Orthopedics, Peking University 3rd Hospital, Beijing Key Laboratory of Spinal Disease Research, No. 49 North Garden Rd., Haidian District, Beijing 100191, PR China
| | - Xiaoguang Liu
- Department of Orthopedics, Peking University 3rd Hospital, Beijing Key Laboratory of Spinal Disease Research, No. 49 North Garden Rd., Haidian District, Beijing 100191, PR China
| | - Liang Jiang
- Department of Orthopedics, Peking University 3rd Hospital, Beijing Key Laboratory of Spinal Disease Research, No. 49 North Garden Rd., Haidian District, Beijing 100191, PR China
| | - Feng Wei
- Department of Orthopedics, Peking University 3rd Hospital, Beijing Key Laboratory of Spinal Disease Research, No. 49 North Garden Rd., Haidian District, Beijing 100191, PR China
| | - Chunli Song
- Department of Orthopedics, Peking University 3rd Hospital, Beijing Key Laboratory of Spinal Disease Research, No. 49 North Garden Rd., Haidian District, Beijing 100191, PR China.
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Nuclear Medicine Imaging Techniques of the Musculoskeletal System. Clin Nucl Med 2020. [DOI: 10.1007/978-3-030-39457-8_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Noriega-Álvarez E, Ribot PZ. Role of SPECT/CT in bone pathology: Is this technique still a valid option? Rev Esp Med Nucl Imagen Mol 2019; 38:205-206. [PMID: 31256849 DOI: 10.1016/j.remn.2019.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 03/30/2019] [Accepted: 04/01/2019] [Indexed: 10/26/2022]
Affiliation(s)
- E Noriega-Álvarez
- Servicio de Medicina Nuclear del Hospital General Universitario de Ciudad Real. Presidente del Grupo de Trabajo de Patología Músculo-Esquelética de la SEMNIM. EANM's Inflammation & Infection Committee Member.
| | - P Zorrilla Ribot
- Jefe del Servicio de Servicio de Traumatología y Cirugía Ortopédica del Hospital General Universitario de Ciudad Real
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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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The role of bone SPECT/CT in patients with persistent or recurrent lumbar pain following lumbar spine stabilization surgery. Eur J Nucl Med Mol Imaging 2018; 46:989-998. [PMID: 30191260 DOI: 10.1007/s00259-018-4141-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 08/19/2018] [Indexed: 02/06/2023]
Abstract
PURPOSE Despite recent advances in lumbar spine stabilization surgery (LSSS), a high number of patients continue to complain of persistent/recurrent lumbar pain after LSSS. Conventional imaging (plain radiography, CT and MRI) is commonly performed to assess potential lumbar pain generators, but findings are equivocal in approximately 20% of patients. The purpose of this study was to assess the diagnostic performance of 99mTc-HDP bone SPECT/CT in identifying potential pain generators in patients with persistent/recurrent lumbar pain after LSSS but in whom conventional diagnostic imaging is inconclusive. METHODS A total of 187 patients (median age 56 years, 70 men) with persistent/recurrent lumbar pain following LSSS with inconclusive conventional imaging (plain radiography, CT and/or MRI) underwent 99mTc-HDP bone SPECT/CT and were included in the study. Tracer uptake on SPECT/CT, as an indicator of ongoing or altered osteoblastic activity, was assessed in the lumbar spine stabilization segment(s) and in adjacent segments. Uptake intensity was graded as (1) high (the same as or more than iliac crest uptake), (2) mild (the same as or more than nondiseased vertebral uptake but less than iliac crest uptake), or (3) negative (normal scan). Mild and high uptake were regarded as positive. RESULTS In 160 of the 187 patients (85.6%), SPECT/CT showed positive mild or high tracer uptake in the LSSS region. More than half of the patients had abnormal tracer uptake in the stabilized segments (56.7%) and/or in the adjacent segments (55.6%). Although positive stabilized segment findings were commonly seen at <2 years (70.3%) and the rate decreased with time after LSSS, they were seen at >6 years after surgery in 38.2% of patients. In 51.4% of patients, abnormal activity was seen in the adjacent segments <2 years after LSSS, suggesting early/accelerated degeneration after surgery. The proportion of patients with abnormal activity in the adjacent segments increased to 67.3% at >6 years after LSSS (p < 0.05). Positive SPECT/CT findings in the stabilized segments were more frequent in patients with three or more stabilized segments (p < 0.05), but were not more frequent in the adjacent segments. Overall, positive SPECT/CT guided therapy in 64% of patients, which included facet joint/nerve root injections or re-do surgery at active sites and/or adjacent sites. CONCLUSION Bone SPECT/CT is a sensitive diagnostic tool for identifying altered osteoblastic activity, which might be a pain generator in patients with persistent/recurrent pain after lumbar surgery especially when conventional imaging is inconclusive.
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Gnanasegaran G, Paycha F, Strobel K, van der Bruggen W, Kampen WU, Kuwert T, Van den Wyngaert T. Bone SPECT/CT in Postoperative Spine. Semin Nucl Med 2018; 48:410-424. [PMID: 30193648 DOI: 10.1053/j.semnuclmed.2018.06.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Back pain is a common problem and the diagnosis and treatment depend on the clinical presentation, yet overlap between pain syndromes is common. Imaging of patients with chronic back pain in both pre- and postoperative scenarios include radiological, radionuclide, and hybrid techniques. In general, these techniques have their own advantages and limitations. The aim of surgery is to eliminate pathologic segmental motion and accompanying symptoms, especially pain. However, surgical procedures are not without complications and localizing the cause of the pain is often challenging. Radiobisphosphonate bone SPECT/CT is reported to be useful in evaluating benign orthopedic conditions and it often provides valuable information such as accurate localization and characterization of bone abnormalities. In this review, routinely used spinal surgical techniques and procedures are discussed, as well as the acute and delayed complications related to spinal surgery, the role of conventional imaging, and the potential uses of radionuclide bone SPECT/CT to diagnose pseudoarthrosis, cage subsidence, loosening and misalignment, hardware failure, and postoperative infection.
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Affiliation(s)
- Gopinath Gnanasegaran
- Department of Nuclear Medicine, Royal Free London NHS Foundation Trust, London, UK..
| | - Frédéric Paycha
- Department of Nuclear Medicine, Hôpital Lariboisière, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Klaus Strobel
- Department of Radiology and Nuclear Medicine, Lucerne Cantonal Hospital, Lucerne, Switzerland
| | - Wouter van der Bruggen
- Department of Radiology and Nuclear Medicine, Slingeland Hospital, Doetinchem, The Netherlands
| | | | - Torsten Kuwert
- Clinic of Nuclear Medicine, University Hospital Erlangen, Erlangen, Germany
| | - Tim Van den Wyngaert
- Department of Nuclear Medicine, Antwerp University Hospital, Edegem, Belgium.; Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium
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Mohan HK, Strobel K, van der Bruggen W, Gnanasegaran G, Kampen WU, Kuwert T, Van den Wyngaert T, Paycha F. The role of hybrid bone SPECT/CT imaging in the work-up of the limping patient: a symptom-based and joint-oriented review. Eur J Hybrid Imaging 2018; 2:8. [PMID: 29782592 PMCID: PMC5954706 DOI: 10.1186/s41824-018-0026-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 01/17/2018] [Indexed: 12/30/2022] Open
Abstract
A vast spectrum of lower limb bone and joint disorders (hip, knee, ankle, foot) present with a common clinical presentation: limping. Too often this symptom generates an inefficient cascade of imaging studies. This review attempts to optimise the diagnostic effectiveness of bone scintigraphy using the hybrid SPECT/CT technique in relation to the diagnostic clues provided by other imaging modalities, discusses the appropriate clinical indications, optimal scintigraphic procedures and illustrates updated image pattern-oriented reporting. Frequent lower limb bone and joint pathologies that can now be reliably diagnosed using hybrid bone SPECT/CT imaging will be reviewed. Bone SPECT/CT can be an effective problem-solving tool in patients with persistent limping when careful history taking, clinical examination, and first-line imaging modalities fail to identify the underlying cause.
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Affiliation(s)
- H K Mohan
- Department of Nuclear Medicine, Sri Shankara Cancer Hospital and Research Centre, Bengaluru, India
| | - K Strobel
- 2Department of Radiology and Nuclear Medicine, Lucerne Cantonal Hospital, Lucerne, Switzerland
| | - W van der Bruggen
- 3Department of Radiology and Nuclear Medicine, Slingeland Hospital, Doetinchem, The Netherlands
| | - G Gnanasegaran
- 4Department of Nuclear Medicine, Royal Free London NHS Foundation Trust, London, UK
| | - W U Kampen
- Nuclear Medicine Spitalerhof, Hamburg, Germany
| | - T Kuwert
- 6Clinic of Nuclear Medicine, University Hospital Erlangen, Erlangen, Germany
| | - T Van den Wyngaert
- 7Department of Nuclear Medicine, Antwerp University Hospital, Wilrijkstraat 10, 2650 Edegem, Belgium.,8Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Belgium
| | - F Paycha
- 9Department of Nuclear Medicine, Hôpital Lariboisière, Assistance Publique-Hôpitaux de Paris, Paris, France
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