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Wong JHD, Ismail WH. Addressing challenges in diagnostic X-ray dosimetry: uncertainties and corrections for Al 2O 3:C-based optically stimulated luminescent dosimeters. Phys Eng Sci Med 2024:10.1007/s13246-024-01407-y. [PMID: 38526646 DOI: 10.1007/s13246-024-01407-y] [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: 07/19/2023] [Accepted: 02/14/2024] [Indexed: 03/27/2024]
Abstract
The use of Al2O3:C-based optically stimulated luminescent dosimeters (OSLDs) in diagnostic X-ray is a challenge because of their energy dependence (ED) and variability of element sensitivity factors (ESFs). This study aims to develop a method to determine ED and ESFs of Landauer nanoDot™ OSLDs for clinical X-ray and investigate the uncertainties associated with ESF and ED correction factors. An area of 2 × 2 cm2 at the central axis of the X-ray field was used to establish the ESFs. A total of 80 OSLDs were categorized into "controlled" (n = 40) and "less-controlled" groups (n = 40). The ESFs of the OSLDs were determined using an 80 kVp X-ray beam quality in free-air geometry. The OSLDs were cross-calibrated with an ion chamber to establish the average calibration coefficient and ESFs. The OSLDs were then irradiated at tube potentials ranging from 50 to 150 kVp to determine their ED. The uniformity of the X-ray field was ± 1.5% at 100 cm source-to-surface distance. The batch homogeneities of user-defined ESFs were 2.4% and 8.7% for controlled and less-controlled OSLDs, respectively. The ED of OSLDs ranged from 1.125 to 0.812 as tube potential increased from 50 kVp to 150 kVp. The total uncertainty of OSLDs, without ED correction, could be as high as 16%. After applying ESF and ED correction, the total uncertainties were reduced to 6.3% in controlled OLSDs and 11.6% in less-controlled ones. OSLDs corrected with user-defined ESF and ED can reduce the uncertainty of dose measurements in diagnostic X-rays, particularly in managing less-controlled OSLDs.
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Affiliation(s)
- Jeannie Hsiu Ding Wong
- Department of Biomedical Imaging, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
- Medical Physics Laboratory, Radiation Safety and Health Division, Malaysian Nuclear Agency, 43000, Bangi, Kajang, Selangor, Malaysia.
- Universiti Malaya Research Imaging Centre (UMRIC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Wan Hazlinda Ismail
- Medical Physics Laboratory, Radiation Safety and Health Division, Malaysian Nuclear Agency, 43000, Bangi, Kajang, Selangor, Malaysia
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2
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Peel TN, Cherk M, Yap K. Imaging in osteoarticular infection in adults. Clin Microbiol Infect 2024; 30:312-319. [PMID: 37940000 DOI: 10.1016/j.cmi.2023.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/18/2023] [Accepted: 11/02/2023] [Indexed: 11/10/2023]
Abstract
BACKGROUND Osteoarticular infections are uncommon and required a multimodal approach for diagnosis. Imaging forms an important component of this multimodal approach. OBJECTIVES In this narrative review, we describe the different imaging modalities, features of osteoarticular infections present on these imaging approaches and recommendations for which imaging modality should be considered in different types of osteoarticular infections. SOURCES This narrative review was based on literature review from PubMed and was limited to bacterial infections in adult patients. CONTENT Imaging modalities include modalities that provide information on the anatomy or radionuclide imaging that provides information about the metabolic activity of the area of interest. Anatomical imaging includes plain radiographs (X-ray), computed tomography, and magnetic resonance imaging. Radionuclide approaches include three-phase bone scintigraphy, gallium scans, white blood cell scintigraphy, and 18F-fluorodeoxy-glucose positron emission tomography. The optimal radiological modality for diagnosis is influenced by multiple factors, including infection location, presence of metalware, timing of infection from any preceding surgery or fracture, antibiotic use, and patient comorbidities. Local availability of scanning modality, tracer supply, technical expertise, and patient access also influences choice. IMPLICATIONS A collaborative approach with imaging, pathology and clinical input in a multidisciplinary setting is paramount for the diagnosis of osteoarticular infections. Increasing research and improvements in technology will further improve the utility and accuracy of imaging approaches for imaging in osteoarticular infections.
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Affiliation(s)
- Trisha N Peel
- Department of Infectious Diseases, Monash University and Alfred Health, Melbourne, VIC, Australia.
| | - Martin Cherk
- Department of Nuclear Medicine & PET, Alfred Health, Melbourne, VIC, Australia; Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Kenneth Yap
- Department of Nuclear Medicine & PET, Alfred Health, Melbourne, VIC, Australia; Central Clinical School, Monash University, Melbourne, VIC, Australia
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3
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Compagnone D, Cecchinato R, Pezzi A, Langella F, Damilano M, Redaelli A, Vanni D, Lamartina C, Berjano P, Boriani S. Diagnostic Approach and Differences between Spinal Infections and Tumors. Diagnostics (Basel) 2023; 13:2737. [PMID: 37685273 PMCID: PMC10487270 DOI: 10.3390/diagnostics13172737] [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: 06/20/2023] [Revised: 08/08/2023] [Accepted: 08/19/2023] [Indexed: 09/10/2023] Open
Abstract
STUDY DESIGN A systematic review of the literature about differential diagnosis between spine infection and bone tumors of the spine. BACKGROUND AND PURPOSE The differential diagnosis between spine infection and bone tumors of the spine can be misled by the prevalence of one of the conditions over the other in different areas of the world. A review of the existing literature on suggestive or even pathognomonic imaging aspects of both can be very useful for correctly orientating the diagnosis and deciding the most appropriate area for biopsy. The purpose of our study is to identify which imaging technique is the most reliable to suggest the diagnosis between spine infection and spine bone tumor. METHODS A primary search on Medline through PubMed distribution was made. We identified five main groups: tuberculous, atypical spinal tuberculosis, pyogenic spondylitis, and neoplastic (primitive and metastatic). For each group, we evaluated the commonest localization, characteristics at CT, CT perfusion, MRI, MRI with Gadolinium, MRI diffusion (DWI) and, in the end, the main features for each group. RESULTS A total of 602 studies were identified through the database search and a screening by titles and abstracts was performed. After applying inclusion and exclusion criteria, 34 articles were excluded and a total of 22 full-text articles were assessed for eligibility. For each article, the role of CT-scan, CT-perfusion, MRI, MRI with Gadolinium and MRI diffusion (DWI) in distinguishing the most reliable features to suggest the diagnosis of spine infection versus bone tumor/metastasis was collected. CONCLUSION Definitive differential diagnosis between infection and tumor requires biopsy and culture. The sensitivity and specificity of percutaneous biopsy are 72% and 94%, respectively. Imaging studies can be added to address the diagnosis, but a multidisciplinary discussion with radiologists and nuclear medicine specialists is mandatory.
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Affiliation(s)
| | | | - Andrea Pezzi
- IRCCS Ospedale Galeazzi—Sant’Ambrogio, 20157 Milan, Italy
- Residency Program in Orthopaedics and Traumatology, University of Milan, 20141 Milan, Italy
| | | | - Marco Damilano
- IRCCS Ospedale Galeazzi—Sant’Ambrogio, 20157 Milan, Italy
| | | | - Daniele Vanni
- IRCCS Ospedale Galeazzi—Sant’Ambrogio, 20157 Milan, Italy
| | | | - Pedro Berjano
- IRCCS Ospedale Galeazzi—Sant’Ambrogio, 20157 Milan, Italy
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Mireles-Cano N, Álvarez-Canales JA, Huitrón-García MJ, Quezada M, Macías AE, Mosqueda-Gómez JL. Fluoroscopy-Guided Percutaneous Transpedicular Biopsy Versus Posterolateral Endoscopy for Infective Spondylodiskitis Diagnosis: A Comparative Study. World Neurosurg 2023; 170:e827-e833. [PMID: 36481445 DOI: 10.1016/j.wneu.2022.11.137] [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: 11/25/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
OBJECTIVE We sought to determine the concordance in frequency of microbiologic isolation and species identification in specimens obtained by 2 methods. METHODS Intervertebral disk specimens were taken simultaneously from each patient using percutaneous needle and posterolateral endoscopic biopsies. The isolates were reported in frequencies and concordance using the chi square and Cohen kappa tests. RESULTS Thirty patients were recruited. The average age was 58.1 years, and 15 patients were women. The clinical evolution time was 7 ± 4 months. The causative organism was identified in 12 (40%) specimens obtained by fluoroscopy-guided percutaneous transpedicular biopsy and in 14 (46.6%) obtained by posterolateral endoscopy. The most common organism isolated was Staphylococcus aureus in 3 patients with the percutaneous technique and in 5 with the endoscopic one; Escherichia coli was isolated in 3 patients with each method. The kappa test showed a high degree of agreement between both methods (kappa = 0.86); the agreement in bacterial species identification was 100%. CONCLUSIONS Fluoroscopy-guided percutaneous biopsy and endoscopic sampling have a good degree of concordance for both, frequency of organism isolation and identification in patients with infectious spondylodiskitis.
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Affiliation(s)
- Nicolás Mireles-Cano
- High Specialty Regional Hospital Bajio, Health Secretariat, León, Guanajuato, Mexico; Department of Medicine and Nutrition, Laboratory of Microbiology, University of Guanajuato, León, Guanajuato, Mexico
| | - José A Álvarez-Canales
- High Specialty Regional Hospital Bajio, Health Secretariat, León, Guanajuato, Mexico; Department of Medicine and Nutrition, Laboratory of Microbiology, University of Guanajuato, León, Guanajuato, Mexico.
| | - Mary Jose Huitrón-García
- Department of Medicine and Nutrition, Laboratory of Microbiology, University of Guanajuato, León, Guanajuato, Mexico
| | - Marianne Quezada
- Department of Medicine and Nutrition, Laboratory of Microbiology, University of Guanajuato, León, Guanajuato, Mexico
| | - Alejandro E Macías
- Department of Medicine and Nutrition, Laboratory of Microbiology, University of Guanajuato, León, Guanajuato, Mexico
| | - Juan L Mosqueda-Gómez
- High Specialty Regional Hospital Bajio, Health Secretariat, León, Guanajuato, Mexico; Department of Medicine and Nutrition, Laboratory of Microbiology, University of Guanajuato, León, Guanajuato, Mexico
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Baryeh K, Anazor F, Iyer S, Rajagopal T. Spondylodiscitis in adults: diagnosis and management. Br J Hosp Med (Lond) 2022; 83:1-9. [DOI: 10.12968/hmed.2021.0448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Spondylodiscitis is often diagnosed late in its course because its symptoms are vague. The incidence in adults increases with age, being seen most commonly in men in their 50s and 60s, so the presence of other medical conditions or infections can make it more difficult to identify spondylodiscitis. Diagnosis is made based on clinical suspicion, raised levels of inflammatory markers, a positive blood or tissue biopsy culture and radiological findings. Once a diagnosis is confirmed, treatment must be started promptly. The mainstay of treatment is medical management, with antibiotics tailored to the relevant organism, as well as immobilisation. Where surgery is indicated, the aims are debridement of infected tissue, tissue sampling, neural decompression and stabilisation. Spondylodiscitis is associated with high rates of mortality and morbidity and should be treated promptly to ensure the best outcome.
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Affiliation(s)
- Kwaku Baryeh
- Department of Trauma and Orthopaedics, Royal Berkshire Hospital, Reading, UK
- Department of Medical Education, West Middlesex University Hospital, Middlesex, UK
| | - Fitzgerald Anazor
- Department of Trauma and Orthopaedics, Royal Berkshire Hospital, Reading, UK
| | - Shabnam Iyer
- Department of Microbiology, Royal Berkshire Hospital, Reading, UK
| | - Trichy Rajagopal
- Department of Trauma and Orthopaedics, Royal Berkshire Hospital, Reading, UK
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C-arm Fluoroscopy-Guided Percutaneous Needle Biopsy for the Diagnosis of Spinal Infection: A Study of 203 Consecutive Patients. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:4155113. [PMID: 35958931 PMCID: PMC9363168 DOI: 10.1155/2022/4155113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/12/2022] [Indexed: 11/24/2022]
Abstract
C-arm fluoroscopy-guided percutaneous needle biopsy (PNB) is a commonly used biopsy method, which shows similar diagnostic outcomes to CT-guided biopsy. This study aimed to evaluate the diagnostic value of C-arm fluoroscopy-guided percutaneous needle biopsy (PNB) for spinal infection. A total of 30 male and 73 female patients with suspected spinal infection were enrolled. Among enrolled patients, the spinal lesion was mainly located in the thoracic (T3-T12, 48.28%) and lumbar vertebra (L1-L5, 46.80%), and T12 was the most frequently involved site. C-arm fluoroscopy-guided PNB was performed for the isolation of biopsy samples in these patients. The overall detection rate of pathological changes in bone tissues was 94.1% (191/203), including 92 granulomata with caseous necrosis, 81 inflammatory tissues, 18 tumor tissues, and 12 bone tissues without visible pathological changes. After excluding the tumors, the detection rate of pathogenic microorganisms in liquid tissues was 50.27% (93/185), including 68 Mycobacterium tuberculosis, and 25 other microorganisms. Spinal tuberculosis was diagnosed in 118 (58%) cases, and nonspecific spinal infection with microorganisms other than Mycobacterium tuberculosis was diagnosed in 25 (12.7%) cases. Definite diagnosis was not determined in the left 42 (20.5%) patients with neither positive pathological nor pathogenic results. C-arm fluoroscopy-guided PNB is effective in the detection of pathological changes and pathogenic microorganisms, which is a practical approach for the diagnosis of spinal infection with high accuracy.
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7
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Supple S, Ahmad S, Gaddikeri S, Jhaveri MD. Treatment of Metastatic Spinal Disease; what the Radiologist needs to know. Br J Radiol 2022; 95:20211300. [PMID: 35604660 PMCID: PMC10996317 DOI: 10.1259/bjr.20211300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 03/23/2022] [Accepted: 03/28/2022] [Indexed: 11/05/2022] Open
Abstract
Advancements in technology and multidisciplinary management have revolutionized the treatment of spinal metastases. Imaging plays a pivotal role in determining the treatment course for spinal metastases. This article aims to review the relevant imaging findings in spinal metastases from the perspective of the treating clinician, describe the various treatment options, and discuss factors influencing choice for each available treatment option. Cases that once required radical surgical resection or low-dose conventional external beam radiation therapy, or both, are now being managed with separation surgery, spine stereotactic radiosurgery/stereotactic body radiation therapy, or both, with decreased morbidity, improved local control, and more durable pain control. The primary focus in determining treatment choice is now on tumor control outcomes, treatment-related morbidity, and quality of life.
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Affiliation(s)
- Stephen Supple
- Rush University Medical Center,
Chicago, IL, United States
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8
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Ahmad S, Jhaveri MD, Mossa-Basha M, Oztek M, Hartman J, Gaddikeri S. A Comparison of CT-Guided Bone Biopsy and Fluoroscopic-Guided Disc Aspiration as Diagnostic Methods in the Management of Spondylodiscitis. Curr Probl Diagn Radiol 2022; 51:728-732. [DOI: 10.1067/j.cpradiol.2022.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/14/2022] [Accepted: 02/27/2022] [Indexed: 11/22/2022]
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9
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Zakaria@Mohamad Z, A Rahim A, Kow RY, Karupiah RK, Zainal Abidin NA, Mohamad F. Diagnostic Accuracy and Adequacy of Computed Tomography Versus Fluoroscopy-Guided Percutaneous Transpedicular Biopsy of Spinal Lesions. Cureus 2022; 14:e20889. [PMID: 35145794 PMCID: PMC8807423 DOI: 10.7759/cureus.20889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/03/2022] [Indexed: 11/22/2022] Open
Abstract
Background Transpedicular biopsy of spinal lesions is imperative for the generation of a definite diagnosis. Thus far, literature comparing the accuracy and adequacy between fluoroscopy-guided and computed tomography (CT)-guided transpedicular biopsy of spinal lesions is scarce. We aim to compare the accuracy and adequacy of samples collected with the two techniques at the largest tertiary hospital in Malaysia. Materials and methods A total of 60 patients (37 patients with spinal infection and 23 patients with spinal tumour) underwent percutaneous transpedicular biopsy of spinal lesions from January 2013 to December 2017 at a tertiary centre. Demographic data, biopsy method (fluoroscopy-guided and CT-guided), diagnosis, adequacy, and accuracy of samples obtained were assessed. Results Among the 60 samples obtained, only two samples (3.3%) were deemed inadequate. There were 10 biopsy samples (16.7%) that were inaccurate. There was no statistical difference between fluoroscopy-guided and CT-guided transpedicular biopsy in terms of accuracy (p = 0.731) and adequacy (p = 0.492). Conclusions Fluoroscopy-guided and CT-guided transpedicular biopsy of spinal lesions offer similar accuracy and adequacy. Fluoroscopy-guided biopsy of the spinal lesion will be an option for spine surgeons when CT-guided biopsy is not available.
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10
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Furlan JC, Wilson JR, Massicotte EM, Sahgal A, Michael FG. Recent advances and new discoveries in the pipeline of the treatment of primary spinal tumors and spinal metastases: A scoping review. Neuro Oncol 2021; 24:1-13. [PMID: 34508647 DOI: 10.1093/neuonc/noab214] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The field of spinal oncology has substantially evolved over the past decades. This review synthesizes and appraises what was learned and what will potentially be discovered from the recently completed and ongoing clinical studies related to the treatment of primary and secondary spinal neoplasms. This scoping review included all clinical studies on the treatment of spinal neoplasms registered in the ClinicalTrials.gov website from February/2000 to December/2020. The terms "spinal cord tumor", "spinal metastasis", and "metastatic spinal cord compression" were used. Of the 174 registered clinical studies on primary spinal tumors and spinal metastasis, most of the clinical studies registered in this American registry were interventional studies led by single institutions in North America (n=101), Europe (n=43), Asia (n=24) or other continents (n=6). The registered clinical studies mainly focused on treatment strategies for spinal neoplasms (90.2%) that included investigating stereotactic radiosurgery (n=33), radiotherapy (n=21), chemotherapy (n=20), and surgical technique (n=11). Of the 69 completed studies, the results from 44 studies were published in the literature. In conclusion, this review highlights the key features of the 174 clinical studies on spinal neoplasms that were registered from 2000 to 2020. Clinical trials were heavily skewed towards the metastatic population as opposed to the primary tumours which likely reflects the rarity of the latter condition and associated challenges in undertaking prospective clinical studies in this population. This review serves to emphasize the need for a focused approach to enhancing translational research in spinal neoplasms with a particular emphasis on primary tumors.
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Affiliation(s)
- Julio C Furlan
- Lyndhurst Centre, Toronto Rehabilitation Institute, University Health Network, Toronto, Ontario, Canada.,KITE Research Institute, University Health Network, Toronto, Ontario, Canada.,Department of Medicine, Division of Physical Medicine and Rehabilitation, University of Toronto, Toronto, Ontario, Canada.,Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada.,Rehabilitation Sciences Institute, University of Toronto, Toronto, Ontario, Canada.,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
| | - Jefferson R Wilson
- Department of Surgery, Division of Neurosurgery, University of Toronto, Toronto, Ontario, Canada.,St. Michael's Hospital, Toronto, Ontario, Canada
| | - Eric M Massicotte
- Department of Surgery, Division of Neurosurgery, University of Toronto, Toronto, Ontario, Canada.,Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Arjun Sahgal
- Department of Radiation Oncology, University of Toronto, Ontario, Canada.,Sunnybrook Health Sciences Centre, Ontario, Canada
| | - Fehlings G Michael
- Department of Surgery, Division of Neurosurgery, University of Toronto, Toronto, Ontario, Canada.,Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
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Cannavale A, Nardis P, Lucatelli P, Corona M, Santoni M, Cannavale G, Teodoli L, Bezzi M, Catalano C. Percutaneous spine biopsy under cone beam computed tomography guidance for spondylodiscitis: Time is diagnosis. Neuroradiol J 2021; 34:607-614. [PMID: 34028300 DOI: 10.1177/19714009211017799] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND AND PURPOSE Percutaneous spine biopsies for spondylodiscitis have been long discussed due to the low microbiologic yield. This retrospective study evaluated factors of cone beam computed tomography-guided spine biopsies that may affect microbiologic yield. METHODS We retrospectively reviewed percutaneous spine biopsies under cone beam computed tomography for spondylodiscitis performed from January 2015-December 2020. Clinical and technical features such as the time from initial symptoms to biopsy, level biopsied, biopsy needle type/gauge, technical approach, radiation dose, technical success and microbiologic yield were recorded. Pre-procedure magnetic resonance imaging findings were also recorded such as the number of vertebral bodies involved, and disc morphology. Univariate logistic regression analysis and Receiver operating characteristic analysis were performed to assess any relationship between relevant factors and positive cultures. RESULTS A total of 50 patients underwent cone beam computed tomography-guided biopsies for spondylodiscitis, with resulted positive cultures in 18 patients (36%). The mean time from the initial referral of spinal symptoms to procedure in the positive culture group was the most influential finding for positive cultures (odds ratio 56.3, p < 0.001). Among magnetic resonance imaging findings, thin or degenerated intervertebral disc was a negative factor for positive cultures (odds ratio 0.09, p = 0.006). Univariate analysis showed that percutaneous approach (transpedicular vs posterolateral/interlaminar) needle size (11-13 g vs 16-18G, odds ratio 1.2, p = 0.7) and site of biopsy (disc vs bone vs disc plus endplate) did not significantly affect the microbiologic yield of spine biopsy. CONCLUSION Percutaneous cone beam computed tomography-guided biopsy for spondylodiscitis is a reliable and safe technique and its microbiologic yield may increase if biopsy is performed within the acute phase of infection.
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Affiliation(s)
| | - Piergiorgio Nardis
- Department of Radiological Sciences, Umberto I Policlinico di Roma, Italy
| | | | - Mario Corona
- Department of Radiological Sciences, Umberto I Policlinico di Roma, Italy
| | - Mariangela Santoni
- Department of Radiological Sciences, Umberto I Policlinico di Roma, Italy
| | - Giuseppe Cannavale
- Department of Radiological Sciences, Umberto I Policlinico di Roma, Italy
| | - Leonardo Teodoli
- Department of Radiological Sciences, Umberto I Policlinico di Roma, Italy
| | - Mario Bezzi
- Department of Radiological Sciences, Umberto I Policlinico di Roma, Italy
| | - Carlo Catalano
- Department of Radiological Sciences, Umberto I Policlinico di Roma, Italy
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12
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Michalopoulos GD, Yolcu YU, Ghaith AK, Alvi MA, Carr CM, Bydon M. Diagnostic yield, accuracy, and complication rate of CT-guided biopsy for spinal lesions: a systematic review and meta-analysis. J Neurointerv Surg 2021; 13:841-847. [PMID: 33883210 DOI: 10.1136/neurintsurg-2021-017419] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/31/2021] [Accepted: 04/01/2021] [Indexed: 01/17/2023]
Abstract
BACKGROUND CT-guided biopsy is a commonly used diagnostic procedure for spinal lesions. This meta-analysis aims to investigate its diagnostic performance and complications, as well as factors influencing outcomes. METHODS A systematic review of the literature was performed to identify studies reporting outcomes of CT-guided biopsies for spinal lesions. Diagnostic yield (ie, the rate of procedures resulting in a specific pathological diagnosis) and diagnostic accuracy (ie, the rate of procedures resulting in the correct diagnosis) were the primary outcomes of interest. Complications following biopsy procedures were also included. RESULTS Thirty-nine studies with 3917 patients undergoing 4181 procedures were included. Diagnostic yield per procedure was 91% (95% CI 88% to 94%) among 3598 procedures. The most common reason for non-diagnostic biopsies was inadequacy of sample. No difference in diagnostic yield between different locations and between lytic, sclerotic, and mixed lesions was found. Diagnostic yield did not differ between procedures using ≤13G and ≥14G needles. Diagnostic accuracy per procedure was 86% (95% CI 82% to 89%) among 3054 procedures. Diagnostic accuracy among 2426 procedures that yielded a diagnosis was 94% (95% CI 92% to 96%). Complication rate was 1% (95% CI 0.4% to 1.9%) among 3357 procedures. Transient pain and minor hematoma were the most common complications encountered. CONCLUSION In our meta-analysis of 39 studies reporting diagnostic performance and complications of CT-guided biopsy, we found a diagnostic yield of 91% and diagnostic accuracy of 86% with a complication rate of 1%. Diagnostic yield did not differ between different locations, between lytic, sclerotic and mixed lesions, and between wide- and thin-bore needles.
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Affiliation(s)
- Giorgos D Michalopoulos
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota, USA.,Neuro-Informatics Laboratory, Mayo Clinic, Rochester, Minnesota, USA
| | - Yagiz Ugur Yolcu
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota, USA.,Neuro-Informatics Laboratory, Mayo Clinic, Rochester, Minnesota, USA
| | - Abdul Karim Ghaith
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota, USA.,Neuro-Informatics Laboratory, Mayo Clinic, Rochester, Minnesota, USA
| | - Mohammed Ali Alvi
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota, USA.,Neuro-Informatics Laboratory, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Mohamad Bydon
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota, USA .,Neuro-Informatics Laboratory, Mayo Clinic, Rochester, Minnesota, USA
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13
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Pasku D, Shah S, Aly A, Quraishi NA. Rare, post-periodontitis spondylodiscitis caused by Fusobacterium nucleatum in a patient with multiple sclerosis: challenge of diagnosis and treatment. BMJ Case Rep 2021; 14:14/3/e239664. [PMID: 33737279 PMCID: PMC7978293 DOI: 10.1136/bcr-2020-239664] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Fusobacterium nucleatum is part of the commensal flora of the oral cavity, frequently associated with periodontal infections. We describe the case of a 49-year-old woman, on immunsuppressive therapy for multiple sclerosis, who presented with a 3-month history of debilitating back pain. She had a recent episode of periodontitis, and was under regular dental review. Her MRI scan demonstrated findings suggestive of L2-L3 spondylodiscitis. Her CT-guided biopsy yielded negative cultures and the patient failed two courses of empirical antibiotic treatment. With clinical and radiological disease progression, she underwent a percutaneous disc washout and biopsy, which subsequently grew F. nucleatum Treatment with clindamycin and metronidazole was commenced orally for 6 weeks. She improved gradually, and at 1 year follow-up was asymptomatic. The diagnosis of spondylodiscitis caused by F. nucleatum is challenging. The perseverance on identification by surgical biopsy, minimally invasive washout and targeted antibiotics are the mainstay of effective treatment.
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Affiliation(s)
- Dritan Pasku
- The Centre for Spinal Studies and Surgery, Queen's Medical Centre Nottingham, University Hospital NHS Trust, Nottingham, UK
| | - Siddharth Shah
- The Centre for Spinal Studies and Surgery, Queen's Medical Centre Nottingham, University Hospital NHS Trust, Nottingham, UK
| | - Ahmed Aly
- The Centre for Spinal Studies and Surgery, Queen's Medical Centre Nottingham, University Hospital NHS Trust, Nottingham, UK
| | - Nasir A Quraishi
- The Centre for Spinal Studies and Surgery, Queen's Medical Centre Nottingham, University Hospital NHS Trust, Nottingham, UK
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14
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Singh DK, Sharma A, Boruah T, Kumar N, Suman S, Jaiswal B. Computed Tomography-Guided Vertebral Biopsy in Suspected Tuberculous Spondylodiscitis: Comparing a New Navigational Tram-Track Technique versus Conventional Method. JOURNAL OF CLINICAL INTERVENTIONAL RADIOLOGY ISVIR 2020. [DOI: 10.1055/s-0040-1721532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Abstract
Introduction Computed tomography (CT)-guided vertebral biopsy is always recommended for histopathological and microbiological confirmation in cases of tuberculous spondylodiscitis and for antimycobacterial drug sensitivity testing.
Aim To compare the conventional technique and a novel axis-defined tram-track technique of CT-guided vertebral biopsy in suspected tuberculous spondylodiscitis.
Materials and Methods Sixty-seven patients of clinico-radiologically suspected tuberculous spondylodiscitis referred for CT-guided vertebral biopsy were categorized into two groups: “Group A” patients (n = 32) underwent biopsy by conventional technique, and “Group B” patients (n = 35) by axis-defined tram-track technique. The time taken for procedure, radiation exposure, and any procedural complications were recorded for both the groups.
Results A statistically significant difference in procedure time and mean radiation dose was observed between the two groups: a longer procedural time was required in “Group A” (52.5 ± 3.5 minutes) as compared to “Group B” (37.3 ± 3.6 minutes) (p < 0.0001); and mean radiation dose (CTDIvol) in “Group A” and “Group B” was 8.64 ± 1.06 mGy and 5.73 ± 0.71 mGy, respectively (p < 0.0001). However, the difference in complication rate and tissue yield for successful diagnosis of the biopsies in the two groups was found to be statistically insignificant.
Conclusion Axis-defined tram-track technique was found to have a significantly shorter procedural time as well as lower radiation exposure compared to the conventional technique of vertebral biopsy in our study.
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Affiliation(s)
- Dharmendra Kumar Singh
- Department of Radiodiagnosis, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
| | - Anuradha Sharma
- Department of Radiodiagnosis, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
| | - Tankeshwar Boruah
- Central Institute of Orthopedics, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
| | - Nishith Kumar
- Department of Radiodiagnosis, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
| | - Saurabh Suman
- Department of Radiodiagnosis, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
| | - Binita Jaiswal
- Department of Anesthesia, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
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