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Micalizzi DS, Sequist LV, Haber DA. Deploying blood-based cancer screening. Science 2024; 383:368-370. [PMID: 38271495 DOI: 10.1126/science.adk1213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
AI-based risk assessment may enable personalized blood-based multicancer screening.
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Affiliation(s)
- Douglas S Micalizzi
- Krantz Family Center for Cancer Research, Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA, USA
- Department of Medicine and Massachusetts General Hospital Cancer Center, Harvard Medical, School, Boston, MA, USA
| | - Lecia V Sequist
- Department of Medicine and Massachusetts General Hospital Cancer Center, Harvard Medical, School, Boston, MA, USA
| | - Daniel A Haber
- Krantz Family Center for Cancer Research, Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, MA, USA
- Department of Medicine and Massachusetts General Hospital Cancer Center, Harvard Medical, School, Boston, MA, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
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2
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Scott IA, Slavotinek J, Glasziou PP. First do no harm in responding to incidental imaging findings. Med J Aust 2024; 220:7-9. [PMID: 38009654 DOI: 10.5694/mja2.52177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 09/05/2023] [Indexed: 11/29/2023]
Affiliation(s)
- Ian A Scott
- Centre for Health Services Research, University of Queensland, Brisbane, QLD
- Princess Alexandra Hospital, Brisbane, QLD
| | | | - Paul P Glasziou
- Institute for Evidence-based Healthcare, Bond University, Gold Coast, QLD
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3
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Hempel HL, Engbersen MP, Wakkie J, van Kelckhoven BJ, de Monyé W. Higher agreement between readers with deep learning CAD software for reporting pulmonary nodules on CT. Eur J Radiol Open 2022; 9:100435. [PMID: 35942077 PMCID: PMC9356194 DOI: 10.1016/j.ejro.2022.100435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 07/21/2022] [Accepted: 07/28/2022] [Indexed: 12/01/2022] Open
Abstract
Purpose The aim was to evaluate the impact of CAD software on the pulmonary nodule management recommendations of radiologists in a cohort of patients with incidentally detected nodules on CT. Methods For this retrospective study, two radiologists independently assessed 50 chest CT cases for pulmonary nodules to determine the appropriate management recommendation, twice, unaided and aided by CAD with a 6-month washout period. Management recommendations were given in a 4-point grade based on the BTS guidelines. Both reading sessions were recorded to determine the reading times per case. A reduction in reading times per session was tested with a one-tailed paired t-test, and a linear weighted kappa was calculated to assess interobserver agreement. Results The mean age of the included patients was 65.0 ± 10.9. Twenty patients were male (40 %). For both readers 1 and 2, a significant reduction of reading time was observed of 33.4 % and 42.6 % (p < 0.001, p < 0.001). The linear weighted kappa between readers unaided was 0.61. Readers showed a better agreement with the aid of CAD, namely by a kappa of 0.84. The mean reading time per case was 226.4 ± 113.2 and 320.8 ± 164.2 s unaided and 150.8 ± 74.2 and 184.2 ± 125.3 s aided by CAD software for readers 1 and 2, respectively. Conclusion A dedicated CAD system for aiding in pulmonary nodule reporting may help improve the uniformity of management recommendations in clinical practice.
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Affiliation(s)
- H L Hempel
- Department of Radiology, Spaarne Gasthuis Hospital, Hoofddorp, the Netherlands.,Aidence B.V., Amsterdam, the Netherlands
| | - M P Engbersen
- Department of Radiology, Spaarne Gasthuis Hospital, Hoofddorp, the Netherlands.,Aidence B.V., Amsterdam, the Netherlands
| | - J Wakkie
- Department of Radiology, Spaarne Gasthuis Hospital, Hoofddorp, the Netherlands.,Aidence B.V., Amsterdam, the Netherlands
| | - B J van Kelckhoven
- Department of Radiology, Spaarne Gasthuis Hospital, Hoofddorp, the Netherlands.,Aidence B.V., Amsterdam, the Netherlands
| | - W de Monyé
- Department of Radiology, Spaarne Gasthuis Hospital, Hoofddorp, the Netherlands.,Aidence B.V., Amsterdam, the Netherlands
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4
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Eldeş T, Kara BY. Incidental lung findings in coronary computed tomography angiography. Rev Assoc Med Bras (1992) 2021; 67:1328-1332. [DOI: 10.1590/1806-9282.20210662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 08/03/2021] [Indexed: 11/22/2022] Open
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Azour L, Ko JP, Washer SL, Lanier A, Brusca-Augello G, Alpert JB, Moore WH. Incidental Lung Nodules on Cross-sectional Imaging: Current Reporting and Management. Radiol Clin North Am 2021; 59:535-549. [PMID: 34053604 DOI: 10.1016/j.rcl.2021.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Pulmonary nodules are the most common incidental finding in the chest, particularly on computed tomographs that include a portion or all of the chest, and may be encountered more frequently with increasing utilization of cross-sectional imaging. Established guidelines address the reporting and management of incidental pulmonary nodules, both solid and subsolid, synthesizing nodule and patient features to distinguish benign nodules from those of potential clinical consequence. Standard nodule assessment is essential for the accurate reporting of nodule size, attenuation, and morphology, all features with varying risk implications and thus management recommendations.
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Affiliation(s)
- Lea Azour
- Department of Radiology, NYU Grossman School of Medicine, NYU Langone Health, Center for Biomedical Imaging, 660 First Avenue, New York, NY 10016, USA.
| | - Jane P Ko
- Department of Radiology, NYU Grossman School of Medicine, NYU Langone Health, Center for Biomedical Imaging, 660 First Avenue, New York, NY 10016, USA
| | - Sophie L Washer
- Department of Radiology, NYU Grossman School of Medicine, NYU Langone Health, Center for Biomedical Imaging, 660 First Avenue, New York, NY 10016, USA
| | - Amelia Lanier
- Department of Radiology, NYU Grossman School of Medicine, NYU Langone Health, Center for Biomedical Imaging, 660 First Avenue, New York, NY 10016, USA
| | - Geraldine Brusca-Augello
- Department of Radiology, NYU Grossman School of Medicine, NYU Langone Health, Center for Biomedical Imaging, 660 First Avenue, New York, NY 10016, USA
| | - Jeffrey B Alpert
- Department of Radiology, NYU Grossman School of Medicine, NYU Langone Health, Center for Biomedical Imaging, 660 First Avenue, New York, NY 10016, USA
| | - William H Moore
- Department of Radiology, NYU Grossman School of Medicine, NYU Langone Health, Center for Biomedical Imaging, 660 First Avenue, New York, NY 10016, USA
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6
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Tsakok MT, Mashar M, Pickup L, Peschl H, Kadir T, Gleeson F. The utility of a convolutional neural network (CNN) model score for cancer risk in indeterminate small solid pulmonary nodules, compared to clinical practice according to British Thoracic Society guidelines. Eur J Radiol 2021; 137:109553. [PMID: 33581913 DOI: 10.1016/j.ejrad.2021.109553] [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: 09/07/2020] [Revised: 01/07/2021] [Accepted: 01/12/2021] [Indexed: 10/22/2022]
Abstract
PURPOSE To determine how implementation of an artificial intelligence nodule algorithm, the Lung Cancer Prediction Convolutional Neural Network (LCP-CNN), at the point of incidental nodule detection would have influenced further investigation and management using a series of threshold scores at both the benign and malignant end of the spectrum. METHOD An observational retrospective study was performed in the assessment of nodules between 5-15 mm (158 benign, 32 malignant) detected on CT scans, which were performed as part of routine practice. The LCP-CNN was applied to the baseline CT scan producing a percentage score, and subsequent imaging and management determined for each threshold group. We hypothesized that the 5% low risk threshold group requires only one follow-up, the 0.56% very low risk threshold group requires no follow-up and the 80% high risk threshold group warrants expedited intervention. RESULTS The 158 benign nodules had an LCP-CNN score between 0.1 and 70.8%, median 5.5% (IQR 1.4-18.0), whilst the 32 cancer nodules had an LCP-CNN score between 10.1 and 98.7%, median 59.0% (IQR 37.1-83.9). 24/61 CT scans in the 0.56-5% group (n = 37) and 21/21 CT scans <0.56% group (n = 13) could be obviated resulting in an overall reduction of 18.6% (45/242) CT scans in the benign cohort. In the 80% group (n = 10), expedited intervention of malignant nodules could result in a 3.6-month reduction in time delay in 5 cancer patients. CONCLUSION We show the potential of artificial intelligence to reduce the need for follow-up scans and intervention in low-scoring benign nodules, whilst potentially accelerating the investigation and treatment of high-scoring cancer nodules.
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Affiliation(s)
- Maria T Tsakok
- Department of Radiology, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, OX3 9DU, UK
| | - Meghavi Mashar
- Department of Radiology, University College London Hospitals NHS Foundation Trust, London, NW1 2BU, UK
| | | | - Heiko Peschl
- Department of Radiology, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, OX3 9DU, UK
| | | | - Fergus Gleeson
- Department of Radiology, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, OX3 9DU, UK.
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Goldman LH, Lerer R, Shabrang C, Travin MI, Levsky JM. Clinical significance of incidental findings on coronary CT angiography: Insights from a randomized controlled trial. J Nucl Cardiol 2020; 27:2306-2315. [PMID: 30788757 DOI: 10.1007/s12350-019-01647-6] [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: 11/09/2018] [Accepted: 01/21/2019] [Indexed: 10/27/2022]
Abstract
BACKGROUND The effect of incidental findings from coronary computed tomography angiography (CCTA) on management has not been rigorously investigated. This study uses a control group to explore this relationship. METHODS Analysis of data from a randomized controlled trial of acute chest pain patients admitted to telemetry was performed. Patients were randomized to undergo either CCTA (n = 200) or radionuclide myocardial perfusion imaging (MPI) (n = 200). Incidental findings were determined from imaging reports. Records were reviewed to determine subsequent management and imaging during and after hospitalization. Comparisons were performed using Fischer's exact tests. RESULTS 386 incidental findings were found among 187 CCTA studies. No extra-cardiac incidental findings were noted in the MPI arm, which served as an effective control group. There were significantly more non-coronary medical workups during admission in the CCTA group compared to the MPI group [20% (39) vs. 12% (23), P = 0.038]. CCTA patients underwent significantly more resting echocardiography during the inpatient workup compared to the MPI group [38% (75) vs. 18% (55), P = 0.042]. CCTA patients underwent significantly more non-contrast chest CT exams in the year following admission compared to MPI patients [14% (27) vs. 7% (13) P = 0.029]. CONCLUSIONS Incidental findings on inpatient CCTAs performed for chest pain have a significant impact on treatment and imaging during and following hospital admission.
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Affiliation(s)
- Lauren H Goldman
- Department of Radiology, Montefiore Medical Center, 111 E. 210th Street, Bronx, NY, 10467, USA.
| | - Rikah Lerer
- Department of Radiology, Montefiore Medical Center, 111 E. 210th Street, Bronx, NY, 10467, USA
| | - Cyrus Shabrang
- Department of Radiology, Montefiore Medical Center, 111 E. 210th Street, Bronx, NY, 10467, USA
| | - Mark I Travin
- Department of Radiology, Montefiore Medical Center, 111 E. 210th Street, Bronx, NY, 10467, USA
- Department of Medicine, Division of Cardiology, Montefiore Medical Center, Bronx, NY, USA
| | - Jeffrey M Levsky
- Department of Radiology, Montefiore Medical Center, 111 E. 210th Street, Bronx, NY, 10467, USA
- Department of Medicine, Division of Cardiology, Montefiore Medical Center, Bronx, NY, USA
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Abstract
PURPOSE OF REVIEW Risk assessment is the foundational cornerstone for cardiovascular prevention. The goal of this review is to apprise the reader of the latest evidence and guideline-based stepwise method for clinical risk assessment for future atherosclerotic events. We also discuss caveats to the current approach and review future directions including the promise of precision medicine. RECENT FINDINGS The most recent cholesterol and prevention guidelines improve upon the widely used pooled cohort equations by incorporating risk-enhancing factors to further personalize risk assessment. For those in whom uncertainty remains, there is mounting evidence for using the coronary calcium score to uncover subclinical disease to either up- or down-classify risk. Although still in its infancy, progress in high-throughput molecular analysis is edging the field closer to more precise risk stratification. Atherosclerosis is the leading cause of global morbidity and mortality. Emphasis on cardiovascular prevention is essential to mitigate the burden of disease. Here, we introduce a "4 + 2" paradigm for approaching preventive cardiology based on recent guidelines. Risk stratification is performed in four steps: qualitative risk approximation to initiate counseling and education, quantitative risk estimation based on a validated model, personalization with risk-enhancing factors, and measurement of coronary artery calcium score in select patients. The two foundational principles of preventive management are to promote a healthy lifestyle in all and to escalate preventive pharmacotherapy based on increasing risk. Shared decision-making remains central throughout this process.
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Affiliation(s)
- Amit Goyal
- Cleveland Clinic Foundation, Heart Vascular Institute, 9500 Euclid Avenue JB-1, Cleveland, OH, 44195, USA
| | - Leslie Cho
- Cleveland Clinic Foundation, Heart Vascular Institute, 9500 Euclid Avenue JB-1, Cleveland, OH, 44195, USA.
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Conventional Computed Tomographic Calcium Scoring vs full chest CTCS for lung cancer screening: a cost-effectiveness analysis. BMC Pulm Med 2020; 20:187. [PMID: 32631384 PMCID: PMC7336401 DOI: 10.1186/s12890-020-01221-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 06/22/2020] [Indexed: 11/12/2022] Open
Abstract
Background Conventional CTCS images the mid/lower chest for coronary artery disease (CAD). Because many CAD patients are also at risk for lung malignancy, CTCS often discovers incidental pulmonary nodules (IPN). CTCS excludes the upper chest, where malignancy is common. Full-chest CTCS (FCT) may be a cost-effective screening tool for IPN. Methods A decision tree was created to compare a FCT to CTCS in a hypothetical patient cohort with suspected CAD. (Figure) The design compares the effects of missed cancers on CTCS with the cost of working up non-malignant nodules on FCT. The model was informed by results of the National Lung Screening Trial and literature review, including the rate of malignancy among patients receiving CTCS and the rate of malignancy in upper vs lower portions of the lung. The analysis outcomes are Quality-Adjusted Life Year (QALY) and incremental cost-effectiveness ratio (ICER), which is generally considered beneficial when <$50,000/QALY. Results Literature review suggests that rate of IPNs in the upper portion of the lung varied from 47 to 76%. Our model assumed that IPNs occur in upper and lower portions of the lung with equal frequency. The model also assumes an equal malignancy potential in upper lung IPNs despite data that malignancy occurs 61–66% in upper lung fields. In the base case analysis, a FCT will lead to an increase of 0.03 QALYs comparing to conventional CTCS (14.54 vs 14.51 QALY, respectively), which translates into an QALY increase of 16 days. The associated incremental cost for FCT is $278 ($1027 vs $748, FCT vs CTCS respectively. The incremental cost-effectiveness ratio (ICER) is $10,289/QALY, suggesting significant benefit. Sensitivity analysis shows this benefit increases proportional to the rate of malignancy in upper lung fields. Conclusion Conventional CTCS may be a missed opportunity to screen for upper lung field cancers in high risk patients. The ICER of FCT is better than screening for breast cancer screening (mammograms $80 k/QALY) and colon cancer (colonoscopy $6 k/QALY). Prospective studies are appropriate to define protocols for FCT.
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Mortani Barbosa EJ, Kelly K. Statistical modeling can determine what factors are predictive of appropriate follow-up in patients presenting with incidental pulmonary nodules on CT. Eur J Radiol 2020; 128:109062. [PMID: 32422551 DOI: 10.1016/j.ejrad.2020.109062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 05/04/2020] [Accepted: 05/05/2020] [Indexed: 12/13/2022]
Abstract
PURPOSE To assess the performance of statistical modeling in predicting follow-up adherence of incidentally detected pulmonary nodules (IPN) on CT, based on patient variables (PV), radiology report related variables (RRRV) and physician-patient communication variables (PPCV). METHODS 200 patients with IPN on CT were retrospectively identified and randomly selected. PV (age, gender, smoking status, ethnicity), RRRV (nodule size, patient context, whether follow-up recommendations were provided) and PPCV (whether referring physician documented IPN and ordered follow-up on the electronic medical record) were recorded. Primary outcome was whether patients received appropriate follow-up within +/- 1 month of the recommended time frame. Statistical methods included logistic regression and machine learning (K-nearest neighbors and support vector machine). RESULTS Adherence was low, with or without recommendations provided in the radiology report (23.4 %-27.4 %). Whether the referring physician ordered follow-up was the dominant predictor of adherence in all models. The following variables were statistically significant predictors of whether referring physician ordered follow-up: recommendations provided in the radiology report, smoking status, patient context and nodule size (FDR logworth of respectively 21.18, 11.66, 2.35, 1.63, p < 0.05). Prediction accuracy varied from 72 % (PV) to 93 % (PPCV, all variables). CONCLUSION PPCV are the most important predictors of adherence. Amongst all variables, patient context, smoking status, nodule size, and whether the radiologist provided follow-up recommendations in the report were all statistically significant predictors of patient follow-up adherence, supporting the utility of statistical modeling for analytics, quality assurance and optimization of outcomes related to IPN.
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Affiliation(s)
| | - Kate Kelly
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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Monica MP, Merkely B, Szilveszter B, Drobni ZD, Maurovich-Horvat P. Computed Tomographic Angiography for Risk Stratification in Patients with Acute Chest Pain - The Triple Rule-out Concept in the Emergency Department. Curr Med Imaging 2020; 16:98-110. [PMID: 32003310 DOI: 10.2174/1573405614666180604095120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 06/20/2017] [Accepted: 03/19/2018] [Indexed: 12/26/2022]
Abstract
BACKGROUND Acute chest pain is one of the most common reasons for Emergency Department (ED) visits and hospital admissions. As this could represent the first symptom of a lifethreatening condition, urgent identification of the etiology of chest pain is of utmost importance in emergency settings. Such high-risk conditions that can present with acute chest pain in the ED include Acute Coronary Syndromes (ACS), Pulmonary Embolisms (PE) and Acute Aortic Syndromes (AAS). DISCUSSION The concept of Triple Rule-out Computed Tomographic Angiography (TRO-CTA) for patients presenting with acute chest pain in the ED is based on the use of coronary computed tomographic angiography as a single imaging technique, able to diagnose or exclude three lifethreatening conditions in one single step: ACS, AAS and PE. TRO-CTA protocols have been proved to be efficient in the ED for diagnosis or exclusion of life-threatening conditions and for differentiation between various etiologies of chest pain, and application of the TRO-CTA protocol in the ED for acute chest pain of uncertain etiology has been shown to improve the further clinical evaluation and outcomes of these patients. CONCLUSION This review aims to summarize the main indications and techniques used in TRO protocols in EDs, and the role of TRO-CTA protocols in risk stratification of patients with acute chest pain.
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Affiliation(s)
- Marton-Popovici Monica
- Department of Internal Medicine and Critical Care, Swedish Medical Center, Edmonds, Washington, United States
| | - Béla Merkely
- MTA-SE Cardiovascular Imaging Research Group, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Bálint Szilveszter
- MTA-SE Cardiovascular Imaging Research Group, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Zsófia Dora Drobni
- MTA-SE Cardiovascular Imaging Research Group, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Pál Maurovich-Horvat
- MTA-SE Cardiovascular Imaging Research Group, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
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Elia S, Loprete S, De Stefano A, Hardavella G. Does aggressive management of solitary pulmonary nodules pay off? Breathe (Sheff) 2019; 15:15-23. [PMID: 30838056 PMCID: PMC6395991 DOI: 10.1183/20734735.0275-2018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Indeterminate solitary pulmonary nodules (SPNs), measuring up to 3 cm in diameter, are incidental radiological findings. The ever-growing use of modern imaging has increased their detection. The majority of those nodules are benign; however, the possibility of diagnosing early-stage lung cancer still stands. Guidelines for the management of SPNs have never been validated in prospective comparative studies. Positron emission tomography (PET) is a useful tool to provide functional information on SPNs. However, overall sensitivity and specificity of PET in detecting malignant SPNs of at least 10 mm in diameter are about 90% and false-negative results are reported. The development of video-assisted thoracic surgery has provided minimally invasive diagnosis and treatment of SPNs. In our series, 105 patients underwent surgery based on combined increased 18F-labelled 2-fluoro-2-deoxy-d-glucose (FDG) uptake on PET computed tomography and radiological features (morphology and density) without prior histological confirmation. We detected 26 false negatives (24.8%) and only nine false positives (8.57%). Therefore, our minimally invasive surgical approach prevented 25% of patients with lung cancer from a delayed treatment versus only 9% undergoing “overtreatment”. In our monocentric cohort, patients with SPNs with large diameter, irregular outline, no calcifications, central location, increased FDG uptake and/or subsolid aspect benefited from a primary surgical resection. There is much debate on the best management of solitary pulmonary nodules. Even if they are mostly benign, they may represent an early-stage lung cancer. Minimally invasive surgical removal is probably the best approach to this insidious disease.http://ow.ly/wMKz30nemjR
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Affiliation(s)
- Stefano Elia
- Dept of Surgical Sciences, Thoracic Surgery Unit, Tor Vergata University, Rome, Italy
| | - Serafina Loprete
- Dept of Biomedicine and prevention, Tor Vergata University, Rome, Italy
| | | | - Georgia Hardavella
- Dept of Respiratory Medicine and Allergy, Medical School, King's College London, London, UK.,10th Dept of Respiratory Medicine, Athens' Chest Diseases Hospital "Sotiria", Athens, Greece
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Lloyd-Jones DM, Braun LT, Ndumele CE, Smith SC, Sperling LS, Virani SS, Blumenthal RS. Use of Risk Assessment Tools to Guide Decision-Making in the Primary Prevention of Atherosclerotic Cardiovascular Disease: A Special Report From the American Heart Association and American College of Cardiology. Circulation 2018; 139:e1162-e1177. [PMID: 30586766 DOI: 10.1161/cir.0000000000000638] [Citation(s) in RCA: 179] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Risk assessment is a critical step in the current approach to primary prevention of atherosclerotic cardiovascular disease. Knowledge of the 10-year risk for atherosclerotic cardiovascular disease identifies patients in higher-risk groups who are likely to have greater net benefit and lower number needed to treat for both statins and antihypertensive therapy. Current US prevention guidelines for blood pressure and cholesterol management recommend use of the pooled cohort equations to start a process of shared decision-making between clinicians and patients in primary prevention. The pooled cohort equations have been widely validated and are broadly useful for the general US clinical population. But, they may systematically underestimate risk in patients from certain racial/ethnic groups, those with lower socioeconomic status or with chronic inflammatory diseases, and overestimate risk in patients with higher socioeconomic status or who have been closely engaged with preventive healthcare services. If uncertainty remains for patients at borderline or intermediate risk, or if the patient is undecided after a patient-clinician discussion with consideration of risk enhancing factors (eg, family history), additional testing with measurement of coronary artery calcium can be useful to reclassify risk estimates and improve selection of patients for use or avoidance of statin therapy. This special report summarizes the rationale and evidence base for quantitative risk assessment, reviews strengths and limitations of existing risk scores, discusses approaches for refining individual risk estimates for patients, and provides practical advice regarding implementation of risk assessment and decision-making strategies in clinical practice.
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Use of Risk Assessment Tools to Guide Decision-Making in the Primary Prevention of Atherosclerotic Cardiovascular Disease: A Special Report From the American Heart Association and American College of Cardiology. J Am Coll Cardiol 2018; 73:3153-3167. [PMID: 30423392 DOI: 10.1016/j.jacc.2018.11.005] [Citation(s) in RCA: 145] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Risk assessment is a critical step in the current approach to primary prevention of atherosclerotic cardiovascular disease. Knowledge of the 10-year risk for atherosclerotic cardiovascular disease identifies patients in higher-risk groups who are likely to have greater net benefit and lower number needed to treat for both statins and antihypertensive therapy. Current U.S. prevention guidelines for blood pressure and cholesterol management recommend use of the pooled cohort equations to start a process of shared decision-making between clinicians and patients in primary prevention. The pooled cohort equations have been widely validated and are broadly useful for the general U.S. clinical population. But, they may systematically underestimate risk in patients from certain racial/ethnic groups, those with lower socioeconomic status or with chronic inflammatory diseases, and overestimate risk in patients with higher socioeconomic status or who have been closely engaged with preventive healthcare services. If uncertainty remains for patients at borderline or intermediate risk, or if the patient is undecided after a patient-clinician discussion with consideration of risk enhancing factors (e.g., family history), additional testing with measurement of coronary artery calcium can be useful to reclassify risk estimates and improve selection of patients for use or avoidance of statin therapy. This special report summarizes the rationale and evidence base for quantitative risk assessment, reviews strengths and limitations of existing risk scores, discusses approaches for refining individual risk estimates for patients, and provides practical advice regarding implementation of risk assessment and decision-making strategies in clinical practice.
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Campo MJ, Lennes IT. Managing Patients With Screen-Detected Nodules: The Nodule Clinic. Semin Roentgenol 2017; 52:161-165. [DOI: 10.1053/j.ro.2017.06.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Thoracic Incidental Findings in Preoperative Computed Tomography Evaluation for Transcatheter Aortic Valve Implantation (TAVI). J Thorac Imaging 2017; 31:183-8. [PMID: 27082418 DOI: 10.1097/rti.0000000000000208] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Many older patients with aortic stenosis are excluded from surgical intervention due to multiple comorbidities. For these patients, transcatheter aortic valve implantation (TAVI) is a viable treatment alternative. Cardiothoracic computed tomography (CT) provides detailed anatomic assessment of the aortic root structures for patient selection, preprocedural planning, and intraoperative decision-making; however, nonaortic incidental findings are frequently detected. The prevalence and clinical significance of these findings have not been well described. MATERIALS AND METHODS This retrospective study examined incidental findings in 209 consecutive patients (96 women and 113 men; mean age, 70 y) with aortic stenosis undergoing preoperative cardiothoracic CT evaluation for TAVI during a 3-year period. Incidental findings were recorded, and medical records were reviewed for follow-up diagnostic examinations. RESULTS Incidental findings, both significant and nonsignificant, were observed in 85.6% of patients (179/209). Noncalcified pulmonary nodules were the most common incidental finding occurring in 59/209 (28.2%) patients, followed by pleural effusion and emphysema both of which occurred in 34/209 (16.3%) patients, respectively. CONCLUSIONS Cardiothoracic CT obtained for evaluation before TAVI has a high frequency of incidental findings.
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Talwar A, Rahman NM, Kadir T, Pickup LC, Gleeson F. A retrospective validation study of three models to estimate the probability of malignancy in patients with small pulmonary nodules from a tertiary oncology follow-up centre. Clin Radiol 2016; 72:177.e1-177.e8. [PMID: 27908443 DOI: 10.1016/j.crad.2016.09.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Revised: 09/01/2016] [Accepted: 09/15/2016] [Indexed: 10/20/2022]
Abstract
AIM To estimate the probability of malignancy in small pulmonary nodules (PNs) based on clinical and radiological characteristics in a non-screening population that includes patients with a prior history of malignancy using three validated models. MATERIALS AND METHODS Retrospective data on clinical and radiological characteristics was collected from the medical records of 702 patients (379 men, 323 women; range 19-94 years) with PNs ≤12 mm in diameter at a single centre. The final diagnosis was compared to the probability of malignancy calculated by one of three models (Mayo, VA, and McWilliams). Model accuracy was assessed by receiver operating characteristics (ROC). The models were calibrated by comparing predicted and observed rates of malignancy. RESULTS The area under the ROC curve (AUC) was highest for the McWilliams model (0.82; 95% confidence interval [CI]: 0.78-0.91) and lowest for the Mayo model (0.58; 95% CI: 0.55-0.59). The VA model had an AUC of (0.62; 95% CI: 0.47-0.64). Performance of the models was significantly lower than that in the published literature. CONCLUSIONS The accuracy of the three models is lower in a non-screening population with a high prevalence of prior malignancy compared to the papers that describe their development. To the authors' knowledge, this is the largest study to validate predictive models for PNs in a non-screening clinically referred patient population, and has potential implications for the implementation of predictive models.
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Affiliation(s)
- A Talwar
- Departments of Respiratory Medicine and Radiology, Oxford University Hospitals NHS Foundation Trust, Oxford OX3 7LE, UK.
| | - N M Rahman
- Departments of Respiratory Medicine and Radiology, Oxford University Hospitals NHS Foundation Trust, Oxford OX3 7LE, UK
| | - T Kadir
- Mirada Medical Ltd, New Road, Oxford OX1 1BY, UK
| | - L C Pickup
- Mirada Medical Ltd, New Road, Oxford OX1 1BY, UK
| | - F Gleeson
- Departments of Respiratory Medicine and Radiology, Oxford University Hospitals NHS Foundation Trust, Oxford OX3 7LE, UK
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Abstract
Indeterminate pulmonary nodules are commonly encountered and often result in costly and invasive procedures that eventually turn out to be unnecessary. Current prediction models can help to estimate the pretest probability of cancer and assist in determining a strategy of observation with serial imaging for a low pretest probability of cancer, and a more aggressive approach for those patients with a high pretest probability. However, the majority of patients will have an intermediate pretest probability which becomes complex. Decisions for further management are often based on preference by the clinician with the majority of physicians not following current guidelines in the management of pulmonary nodules. Poor adherence to pulmonary nodule guidelines is multifactorial with a variety of factors coming into play. These include inappropriate advice given by the radiologist, patient age, comorbidities, patient preference, and physician's technical skill all influencing the decision making.
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Affiliation(s)
- Sonali Sethi
- Interventional Pulmonology, Respiratory Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Scott Parrish
- Interventional Pulmonary Division, Walter Reed National Military Medical Center, Bethesda, MD, USA
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Callister MEJ, Baldwin DR, Akram AR, Barnard S, Cane P, Draffan J, Franks K, Gleeson F, Graham R, Malhotra P, Prokop M, Rodger K, Subesinghe M, Waller D, Woolhouse I. British Thoracic Society guidelines for the investigation and management of pulmonary nodules. Thorax 2015; 70 Suppl 2:ii1-ii54. [PMID: 26082159 DOI: 10.1136/thoraxjnl-2015-207168] [Citation(s) in RCA: 545] [Impact Index Per Article: 60.6] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- M E J Callister
- Department of Respiratory Medicine, Leeds Teaching Hospitals, Leeds, UK
| | - D R Baldwin
- Nottingham University Hospitals, Nottingham, UK
| | - A R Akram
- Royal Infirmary of Edinburgh, Edinburgh, UK
| | - S Barnard
- Department of Cardiothoracic Surgery, Freeman Hospital, Newcastle, UK
| | - P Cane
- Department of Histopathology, St Thomas' Hospital, London, UK
| | - J Draffan
- University Hospital of North Tees, Stockton on Tees, UK
| | - K Franks
- Clinical Oncology, St James's Institute of Oncology, Leeds, UK
| | - F Gleeson
- Department of Radiology, Oxford University Hospitals NHS Trust, Oxford, UK
| | | | - P Malhotra
- St Helens and Knowsley Teaching Hospitals NHS Trust, UK
| | - M Prokop
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - K Rodger
- Respiratory Medicine, St James's University Hospital, Leeds, UK
| | - M Subesinghe
- Department of Radiology, Churchill Hospital, Oxford, UK
| | - D Waller
- Department of Thoracic Surgery, Glenfield Hospital, Leicester, UK
| | - I Woolhouse
- Department of Respiratory Medicine, University Hospitals of Birmingham, Birmingham, UK
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21
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Stachon P, Kaier K, Milde S, Pache G, Sorg S, Siepe M, von zur Mühlen C, Zirlik A, Beyersdorf F, Langer M, Zehender M, Bode C, Reinöhl J. Two-year survival of patients screened for transcatheter aortic valve replacement with potentially malignant incidental findings in initial body computed tomography. Eur Heart J Cardiovasc Imaging 2015; 16:731-7. [PMID: 25759083 PMCID: PMC4463004 DOI: 10.1093/ehjci/jev055] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 02/18/2015] [Indexed: 12/21/2022] Open
Abstract
Aims Recently, transcatheter aortic valve replacement (TAVR) has evolved as the standard treatment in patients with inoperable aortic valve stenosis. According to TAVR guidelines, body computed tomography (CT) is recommended for pre-procedural planning. Due to the advanced age of these patients, multiple radiological potentially malignant incidental findings (pmIFs) appear in this cohort. It is unknown how pmIFs influence the decision by the heart team to intervene and the mortality. Methods and results We evaluated in a retrospective single-centre observational study 414 participants screened for TAVR with dual-source CT between October 2010 and December 2012. pmIFs are common and appeared in 18.7% of all patients screened for TAVR. The decision to intervene by TAVR or surgical aortic valve replacement (SAVR) was made by an interdisciplinary heart team and the role of pmIF in decision-making and time to treatment with TAVR or SAVR was analysed, retrospectively. The appearance of a pmIF vs. no pmIF did not significantly influence therapeutic decisions [odds ratio (OR) 1.14; P = 0.835] or time to treatment (91 ± 152 vs. 61 ± 109 days, respectively). Several findings, which are highly suspicious for malignancy, were less likely associated with invasive treatment (OR 0.207; P = 0.046). Patient survival was evaluated for at least 2 years until January 2014. Two-year survival of patients after TAVR or SAVR, treated according to the heart team decision, was ∼75% and independent from the presence of a non-severe (P = 0.923) or severe (P = 0.823) pmIF. Conclusion The study indicates that frequently occurring radiologic pmIF did not influence 2-year survival after a decision to intervene was made by an interdisciplinary heart team.
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Affiliation(s)
- Peter Stachon
- Department of Cardiology and Angiology I, University Heart Center Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
| | - Klaus Kaier
- Center for Medical Biometry and Medical Informatics, Medical Center, University of Freiburg, Freiburg, Germany
| | - Simone Milde
- Department of Cardiology and Angiology I, University Heart Center Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
| | - Gregor Pache
- Department of Radiology, Center for Diagnostic and Therapeutic Radiology, University Hospital Freiburg, Freiburg, Germany
| | - Stefan Sorg
- Department of Cardiology and Angiology I, University Heart Center Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
| | - Matthias Siepe
- Department of Cardiology and Angiology I, University Heart Center Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
| | - Constantin von zur Mühlen
- Department of Cardiology and Angiology I, University Heart Center Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
| | - Andreas Zirlik
- Department of Cardiology and Angiology I, University Heart Center Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
| | - Friedhelm Beyersdorf
- Department of Cardiology and Angiology I, University Heart Center Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
| | - Mathias Langer
- Department of Radiology, Center for Diagnostic and Therapeutic Radiology, University Hospital Freiburg, Freiburg, Germany
| | - Manfred Zehender
- Department of Cardiology and Angiology I, University Heart Center Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
| | - Christoph Bode
- Department of Cardiology and Angiology I, University Heart Center Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
| | - Jochen Reinöhl
- Department of Cardiology and Angiology I, University Heart Center Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
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Subramanian DR, Edgar R, Ward H, Parr DG, Stockley RA. Prevalence and radiological outcomes of lung nodules in alpha 1-antitrypsin deficiency. Respir Med 2013; 107:863-9. [DOI: 10.1016/j.rmed.2012.12.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2012] [Revised: 11/28/2012] [Accepted: 12/27/2012] [Indexed: 12/21/2022]
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23
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Systematic Approach to the Management of the Newly Found Nodule on Screening Computed Tomography. Thorac Surg Clin 2013; 23:141-52. [DOI: 10.1016/j.thorsurg.2013.01.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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24
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Ong CW, Malipatil V, Lavercombe M, Teo KGW, Coughlin PB, Leach D, Spanger MC, Thien F. Implementation of a clinical prediction tool for pulmonary embolism diagnosis in a tertiary teaching hospital reduces the number of computed tomography pulmonary angiograms performed. Intern Med J 2013; 43:169-74. [DOI: 10.1111/j.1445-5994.2012.02926.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Accepted: 08/05/2012] [Indexed: 11/29/2022]
Affiliation(s)
- C. W. Ong
- Department of Respiratory and Sleep Medicine; Monash Medical Centre; Southern Health; Melbourne; Victoria; Australia
| | - V. Malipatil
- Department of Respiratory and Sleep Medicine; Box Hill Hospital; Eastern Health; Melbourne; Victoria; Australia
| | - M. Lavercombe
- Department of Respiratory and Sleep Medicine; Box Hill Hospital; Eastern Health; Melbourne; Victoria; Australia
| | - K. G. W. Teo
- Department of Respiratory and Sleep Medicine; Box Hill Hospital; St Vincent's Hospital Melbourne; Melbourne; Victoria; Australia
| | - P. B. Coughlin
- Department of Haematology; Eastern Health, Monash University; Melbourne; Victoria; Australia
| | - D. Leach
- Department of Emergency; Eastern Health, Monash University; Melbourne; Victoria; Australia
| | - M. C. Spanger
- Department of Radiology; Eastern Health, Monash University; Melbourne; Victoria; Australia
| | - F. Thien
- Department of Respiratory and Sleep Medicine; Box Hill Hospital; Eastern Health, Monash University; Melbourne; Victoria; Australia
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25
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Marshall HM, Leong SC, Bennett J, Yang IA, Bowman RV, Fong KM. Digital tomosynthesis for the detection and management of pulmonary nodules. Lung Cancer Manag 2013. [DOI: 10.2217/lmt.12.50] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Henry M Marshall
- University of Queensland Thoracic Research Centre & Department of Thoracic Medicine, The Prince Charles Hospital, Brisbane, Australia
| | - Steven C Leong
- University of Queensland Thoracic Research Centre & Department of Thoracic Medicine, The Prince Charles Hospital, Brisbane, Australia
| | - Julie Bennett
- Medical Imaging Department, The Prince Charles Hospital, Brisbane, Australia
| | - Ian A Yang
- University of Queensland Thoracic Research Centre & Department of Thoracic Medicine, The Prince Charles Hospital, Brisbane, Australia
| | - Rayleen V Bowman
- University of Queensland Thoracic Research Centre & Department of Thoracic Medicine, The Prince Charles Hospital, Brisbane, Australia
| | - Kwun M Fong
- University of Queensland Thoracic Research Centre & Department of Thoracic Medicine, The Prince Charles Hospital, Brisbane, Australia
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Lee SY, Landis MS, Ross IG, Goela A, Leung AE. Extraspinal Findings at Lumbar Spine CT Examinations: Prevalence and Clinical Importance. Radiology 2012; 263:502-9. [DOI: 10.1148/radiol.12112152] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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27
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Abstract
Measurement of traditional risk factors remains the foundation of current clinical practice guidelines when screening for coronary heart disease (CHD) risk. However, many adults who experience CHD events are not identified as higher risk based on their traditional risk factors. Observational data show that the coronary artery calcium (CAC) score improves risk prediction, even after taking into account traditional risk factors. The authors have outlined several principles of CAC testing into a list of dos and don'ts to help maximize its potential benefit while minimizing potential harm.
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Affiliation(s)
- Tamar S Polonsky
- Section of Cardiology, Department of Medicine, University of Chicago Medical Center, 5841 South Maryland Avenue, MC 6080, Chicago, IL 60637, USA.
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28
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Rajani R, Brum RL, Preston R, Carr-White G, Berman DS. Coronary computed tomography angiography for the evaluation of patients with acute chest pain. Int J Clin Pract 2011; 65:1267-73. [PMID: 22093533 DOI: 10.1111/j.1742-1241.2011.02788.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Acute chest pain is a common presenting complaint of patients attending emergency room departments. Despite this, it can often be challenging to completely exclude a diagnosis of acute coronary syndrome following an initial standard clinical and biochemical evaluation. As a result of this, patients are often admitted to hospital until the treating clinician is satisfied that this diagnosis can be excluded. This process imparts a significant health economic burden by not only increasing hospital bed occupancy rates but also by the unnecessary layering of diagnostic investigations. With the rapid advances in coronary computed tomography angiography (CTA), there has been considerable interest in whether coronary CTA may be a viable alternative to this current standard care. We review the current literature and supporting evidence for utilising coronary CTA in the evaluation of patients presenting with acute chest pain in terms of its diagnostic accuracy, safety, cost-effectiveness and prognostic implications.
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Affiliation(s)
- R Rajani
- Department of Cardiac Computed Tomography, St Thomas' Hospital, London, UK.
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29
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Crum-Cianflone N, Stepenosky J, Medina S, Wessman D, Krause D, Boswell G. Clinically significant incidental findings among human immunodeficiency virus-infected men during computed tomography for determination of coronary artery calcium. Am J Cardiol 2011; 107:633-7. [PMID: 21195379 PMCID: PMC3076059 DOI: 10.1016/j.amjcard.2010.10.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2010] [Revised: 10/07/2010] [Accepted: 10/11/2010] [Indexed: 12/21/2022]
Abstract
Those infected with the human immunodeficiency virus (HIV) have a greater risk of cardiovascular disease and might undergo computed tomographic (CT) scans for early detection. Incidental findings on cardiac CT imaging are important components of the benefits and costs of testing. We determined the prevalence and factors associated with incidental findings on CT scans performed to screen for coronary artery calcium (CAC) among HIV-infected men. A clinically significant finding was defined as requiring additional workup or a medical referral. A total of 215 HIV-infected men were evaluated. Their median age was 43 years; 17% were current tobacco users; the median CD4 count was 580 cells/mm(3); and 83% were receiving antiretroviral medications. Also, 34% had a positive CAC score of >0. An incidental finding was noted among 93 participants (43%), with 36 (17%) having ≥1 clinically significant finding. A total of 139 findings were noted, most commonly pulmonary nodules, followed by granulomas, scarring, and hilar adenopathy. Most of the incidental findings were stable on follow-up, and no malignancies were detected. The factors associated with the presence of an incidental finding in the multivariate model included increasing age (odds ratio 1.6 per 10 years, p <0.01), positive CAC score (odds ratio 2.3, p <0.01), and current tobacco use (odds ratio 2.5, p = 0.02). In conclusion, incidental findings were common among HIV-infected men undergoing screening CT imaging for CAC determination. The incidental findings were more common among older patients and those with detectable CAC.
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Affiliation(s)
- Nancy Crum-Cianflone
- Infectious Disease Clinical Research Program, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA.
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Foley PW, Hamaad A, El-Gendi H, Leyva F. Incidental cardiac findings on computed tomography imaging of the thorax. BMC Res Notes 2010; 3:326. [PMID: 21126380 PMCID: PMC3003672 DOI: 10.1186/1756-0500-3-326] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Accepted: 12/03/2010] [Indexed: 12/29/2023] Open
Abstract
Background Investigation of pulmonary pathology with computed tomography also allows visualisation of the heart and major vessels. We sought to explore whether clinically relevant cardiac pathology could be identified on computed tomography pulmonary angiograms (CTPA) requested for the exclusion of pulmonary embolism (PE). 100 consecutive CT contrast-enhanced pulmonary angiograms carried out for exclusion of PE at a single centre were assessed retrospectively by two cardiologists. Findings Evidence of PE was reported in 5% of scans. Incidental cardiac findings included: aortic wall calcification (54%), coronary calcification (46%), cardiomegaly (41%), atrial dilatation (18%), mitral annulus calcification (15%), right ventricular dilatation (11%), aortic dilatation (8%) and right ventricular thrombus (1%). Apart from 3 (3%) reports describing cardiomegaly, no other cardiac findings were described in radiologists' reports. Other reported pulmonary abnormalities included: lung nodules (14%), lobar collapse/consolidation (8%), pleural effusion (2%), lobar collapse/consolidation (8%), emphysema (6%) and pleural calcification (4%). Conclusions CTPAs requested for the exclusion of PE have a high yield of cardiac abnormalities. Although these abnormalities may not have implications for acute clinical management, they may, nevertheless, be important in long-term care.
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Affiliation(s)
- Paul Wx Foley
- Centre for Cardiovascular Sciences, Queen Elizabeth Hospital, University of Birmingham, UK.
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Gondrie MJA, Mali WPTM, Buckens CFM, Jacobs PCA, Grobbee DE, van der Graaf Y. The PROgnostic Value of unrequested Information in Diagnostic Imaging (PROVIDI) Study: rationale and design. Eur J Epidemiol 2010; 25:751-8. [PMID: 20890635 PMCID: PMC2963739 DOI: 10.1007/s10654-010-9514-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2010] [Accepted: 09/15/2010] [Indexed: 10/27/2022]
Abstract
We describe the rationale for a new study examining the prognostic value of unrequested findings in diagnostic imaging. The deployment of more advanced imaging modalities in routine care means that such findings are being detected with increasing frequency. However, as the prognostic significance of many types of unrequested findings is unknown, the optimal response to such findings remains uncertain and in many cases an overly defensive approach is adopted, to the detriment of patient-care. Additionally, novel and promising image findings that are newly available on many routine scans cannot be used to improve patient care until their prognostic value is properly determined. The PROVIDI study seeks to address these issues using an innovative multi-center case-cohort study design. PROVIDI is to consist of a series of studies investigating specific, selected disease entities and clusters. Computed Tomography images from the participating hospitals are reviewed for unrequested findings. Subsequently, this data is pooled with outcome data from a central population registry. Study populations consist of patients with endpoints relevant to the (group of) disease(s) under study along with a random control sample from the cohort. This innovative design allows PROVIDI to evaluate selected unrequested image findings for their true prognostic value in a series of manageable studies. By incorporating unrequested image findings and outcomes data relevant to patients, truly meaningful conclusions about the prognostic value of unrequested and emerging image findings can be reached and used to improve patient-care.
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Edlow JA. What are the unintended consequences of changing the diagnostic paradigm for subarachnoid hemorrhage after brain computed tomography to computed tomographic angiography in place of lumbar puncture? Acad Emerg Med 2010; 17:991-5; discussion 996-7. [PMID: 20836782 DOI: 10.1111/j.1553-2712.2010.00840.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Incidental extracardiac findings at coronary CT: clinical and economic impact. AJR Am J Roentgenol 2010; 194:1531-8. [PMID: 20489093 DOI: 10.2214/ajr.09.3587] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE The purpose of this study was to evaluate the prevalence of incidental extracardiac findings on coronary CT, to determine the associated downstream resource utilization, and to estimate additional costs per patient related to the associated diagnostic workup. MATERIALS AND METHODS This retrospective study examined incidental extracardiac findings in 151 consecutive adults (69.5% men and 30.5% women; mean age, 54 years) undergoing coronary CT during a 7-year period. Incidental findings were recorded, and medical records were reviewed for downstream diagnostic examinations for a follow-up period of 1 year (minimum) to 7 years (maximum). Costs of further workup were estimated using 2009 Medicare average reimbursement figures. RESULTS There were 102 incidental extracardiac findings in 43% (65/151) of patients. Fifty-two percent (53/102) of findings were potentially clinically significant, and 81% (43/53) of these findings were newly discovered. The radiology reports made specific follow-up recommendations for 36% (19/53) of new significant findings. Only 4% (6/151) of patients actually underwent follow-up imaging or intervention for incidental findings. One patient was found to have a malignancy that was subsequently treated. The average direct costs of additional diagnostic workup were $17.42 per patient screened (95% CI, $2.84-$32.00) and $438.39 per patient with imaging follow-up (95% CI, $301.47-$575.31). CONCLUSION Coronary CT frequently reveals potentially significant incidental extracardiac abnormalities, yet radiologists recommend further evaluation in only one-third of cases. An even smaller fraction of cases receive further workup. The failure to follow-up abnormal incidental findings may result in missed opportunities to detect early disease, but also limits the short-term attributable costs.
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Quantitative Assessment of Percentage of Lung Parenchyma Visualized on Cardiac Computed Tomographic Angiography. J Comput Assist Tomogr 2010; 34:385-7. [DOI: 10.1097/rct.0b013e3181ce07d3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Gerber TC. Emergency department assessment of acute-onset chest pain: contemporary approaches and their consequences. Mayo Clin Proc 2010; 85:309-13. [PMID: 20360290 PMCID: PMC2848418 DOI: 10.4065/mcp.2010.0141] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Thomas C. Gerber
- Division of Cardiovascular Diseases, Mayo Clinic in FloridaJacksonville
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36
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Park KH, Lee HY, Lim C, Chung ES, Sung SW, Choi SI, Chun EJ. Clinical impact of computerised tomographic angiography performed for preoperative evaluation before coronary artery bypass grafting. Eur J Cardiothorac Surg 2010; 37:1346-52. [PMID: 20138777 DOI: 10.1016/j.ejcts.2009.12.040] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2009] [Revised: 12/15/2009] [Accepted: 12/31/2009] [Indexed: 01/31/2023] Open
Abstract
OBJECTIVE In our institution, computerised tomographic (CT) angiography has been performed as a near-routine test before coronary artery bypass grafting (CABG) to evaluate the aorta and its branches. We aimed to determine its impact on operative procedure and perioperative management. METHODS From January 2006 through December 2008, neck-to-leg systemic arteries were evaluated by 64-slice multidetector CT scan in 284 patients before CABG. For them, medical records and cardiac surgery database were retrospectively reviewed to investigate the incidence of pathologic lesions of the aorta and its major branches, other incidental lesions and procedure- or management-related decision affected by CT angiography. RESULTS In 36 patients (12.7%), cannulation and clamping of the ascending aorta were thought too dangerous because of severe atherosclerotic change. The use of cardiopulmonary bypass was inevitable in 10 of them, and postoperative mortality rate was significantly higher (3/10, 30%) than in the remaining patients (2/274, 0.7%). Conduit selection or grafting strategy was changed due to severe left subclavian artery stenosis or leg vein varicosity in 18 patients (6.3%). For the following problems, surgical interventions were performed in 34 patients (12.0%) concomitantly or during the same admission with CABG; > or = 90% stenosis in carotid (5.6%), iliofemoral (11.6%) or renal (4.6%) arteries, aortic aneurysm (14.4%, six of them met surgical indication) and incidental malignant neoplasm (2.8%). Counting all of the above, preoperative CT angiography affected risk assessment, CABG procedure itself, perioperative management or follow-up plan in 142 patients (50%). CONCLUSIONS Because preoperative CT angiography considerably affected management in one half of patients, we recommend its use as a routine test before CABG, unless contraindicated.
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Affiliation(s)
- Kay-Hyun Park
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, Republic of Korea.
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Machaalany J, Yam Y, Ruddy TD, Abraham A, Chen L, Beanlands RS, Chow BJW. Potential clinical and economic consequences of noncardiac incidental findings on cardiac computed tomography. J Am Coll Cardiol 2009; 54:1533-41. [PMID: 19815125 DOI: 10.1016/j.jacc.2009.06.026] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2009] [Revised: 05/19/2009] [Accepted: 06/11/2009] [Indexed: 12/11/2022]
Abstract
OBJECTIVES We sought to determine the incidence, clinical significance, and potential financial impact of noncardiac incidental findings (IF) identified with cardiac computed tomography (CT). BACKGROUND Cardiac CT is gaining acceptance and may lead to the frequent discovery of extracardiac IF. METHODS Consecutive patients undergoing cardiac CT had noncardiac structures evaluated after full field of view (32 to 50 cm) reconstruction. IF were categorized as clinically significant (CS), indeterminate, or clinically insignificant. Patient follow-up was performed by telephone, and verified with hospital records and/or communication with physicians. RESULTS Of 966 patients (58 +/- 16 years of age, 55.4% men, >98% outpatients), 401 (41.5%) patients had noncardiac IF. A total of 12 (1.2%) patients had CS findings, and 68 (7.0%) patients had indeterminate findings. At follow-up (18.4 +/- 7.6 months), none of the indeterminate findings became CS. Although 3 patients with indeterminate findings were diagnosed with malignant lesions, they were unrelated to the IF. After adjusting for age, IF were not an independent predictor of noncardiac death. Noncardiac death and cancer death in patients with and without IF were not statistically different. One patient suffered a major complication related to the investigation of an IF. The total direct cost associated with investigating IF was Canadian $57,596 (U.S. $83,035). CONCLUSIONS Although noncardiac IF are common, clinically significant or indeterminate IF are less prevalent. Rates of death were similar in patients with and without IF, and IF was not an independent predictor of noncardiac death. The investigation of IF is not without cost or risk. Larger studies are required to assess the potential mortality benefit of identifying IF.
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Affiliation(s)
- Jimmy Machaalany
- Department of Medicine (Cardiology), University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario, Canada
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The dilemma of incidental findings on cardiac computed tomography. J Am Coll Cardiol 2009; 54:1542-3. [PMID: 19815126 DOI: 10.1016/j.jacc.2009.06.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2009] [Accepted: 06/30/2009] [Indexed: 11/24/2022]
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Current World Literature. Curr Opin Pulm Med 2009; 15:521-7. [DOI: 10.1097/mcp.0b013e3283304c7b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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