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Bhimani F, Zhang J, Shah L, McEvoy M, Gupta A, Pastoriza J, Shihabi A, Feldman S. Can the Clinical Utility of iBreastExam, a Novel Device, Aid in Optimizing Breast Cancer Diagnosis? A Systematic Review. JCO Glob Oncol 2023; 9:e2300149. [PMID: 38085036 PMCID: PMC10846782 DOI: 10.1200/go.23.00149] [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: 05/04/2023] [Revised: 08/05/2023] [Accepted: 09/02/2023] [Indexed: 12/18/2023] Open
Abstract
PURPOSE A portable, cost-effective, easy-to-use, hand-held Intelligent Breast Exam (iBE), which is a wireless, radiation-free device, may be a valuable screening tool in resource-limited settings. While multiple studies evaluating the use of iBE have been conducted worldwide, there are no cumulative studies evaluating the iBE's performance. Therefore this review aims to determine the clinical utility and applicability of iBE compared with clinical breast examinations, ultrasound, and mammography and discuss its strengths and weaknesses when performing breast-cancer screening. METHODS A systematic review was performed following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Four electronic databases were searched: PubMed, Cochrane Library, Web of Science, and Google Scholar. RESULTS The review included 11 studies with a total sample size of 16,052 breasts. The mean age ranged from 42 to 58 years. The sensitivity and specificity of the iBE ranged from 34.3% to 86% and 59% to 94%, respectively. For malignant lesions, iBE demonstrated a moderate to higher diagnostic capacity ranging from 57% to 93% and could identify tumor sizes spanning from 0.5 cm to 9 cm. CONCLUSION Our findings underscore the potential clinical utility and applicability of iBE as a prescreening and triaging tool, which may aid in reducing the burden of patients undergoing diagnostic imaging in lower- and middle-income countries. Furthermore, iBE has shown to diagnose cancers as small as 0.5 cm, which can be a boon in early detection and reduce mortality rates. However, the encouraging results of this systematic review should be interpreted with caution because of the device's low sensitivity and high false-positive rates.
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Affiliation(s)
- Fardeen Bhimani
- Breast Surgery Division, Department of Surgery, Montefiore Medical Center, Montefiore Einstein Center for Cancer Care, New York, NY
| | - Janice Zhang
- Albert Einstein College of Medicine, New York, NY
| | - Lamisha Shah
- Breast Surgery Division, Department of Surgery, Montefiore Medical Center, Montefiore Einstein Center for Cancer Care, New York, NY
| | - Maureen McEvoy
- Breast Surgery Division, Department of Surgery, Montefiore Medical Center, Montefiore Einstein Center for Cancer Care, New York, NY
| | - Anjuli Gupta
- Breast Surgery Division, Department of Surgery, Montefiore Medical Center, Montefiore Einstein Center for Cancer Care, New York, NY
| | - Jessica Pastoriza
- Breast Surgery Division, Department of Surgery, Montefiore Medical Center, Montefiore Einstein Center for Cancer Care, New York, NY
| | - Areej Shihabi
- Breast Surgery Division, Department of Surgery, Montefiore Medical Center, Montefiore Einstein Center for Cancer Care, New York, NY
| | - Sheldon Feldman
- Breast Surgery Division, Department of Surgery, Montefiore Medical Center, Montefiore Einstein Center for Cancer Care, New York, NY
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Kharel S, Shrestha S, Yadav S. iBreastExam: Time for Formal Operation in Nepal. JCO Glob Oncol 2022; 8:e2200216. [PMID: 36049152 PMCID: PMC9470130 DOI: 10.1200/go.22.00216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
iBreastExam device can be a solution to the increasing problem of advanced breast cancer cases diagnosed late as a screening device often useful in low resource and low manpower settings like Nepal
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Affiliation(s)
- Sanjeev Kharel
- Maharajgunj Medical Campus, Tribhuvan University Institute of Medicine, Maharajgunj, Kathmandu, Nepal
| | - Suraj Shrestha
- Maharajgunj Medical Campus, Tribhuvan University Institute of Medicine, Maharajgunj, Kathmandu, Nepal
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Mango VL, Olasehinde O, Omisore AD, Wuraola FO, Famurewa OC, Sevilimedu V, Knapp GC, Steinberg E, Akinmaye PR, Adewoyin BD, Romanoff A, Castle PE, Alatise O, Kingham TP. The iBreastExam versus clinical breast examination for breast evaluation in high risk and symptomatic Nigerian women: a prospective study. Lancet Glob Health 2022; 10:e555-e563. [PMID: 35303464 PMCID: PMC9102465 DOI: 10.1016/s2214-109x(22)00030-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 12/23/2021] [Accepted: 01/13/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND The iBreastExam electronically palpates the breast to identify possible abnormalities. We assessed the iBreastExam performance compared with clinical breast examination for breast lesion detection in high risk and symptomatic Nigerian women. METHODS This prospective study was done at the Obafemi Awolowo University Teaching Hospital Complex (OAUTHC) in Nigeria. Participants were Nigerian women aged 40 years or older who were symptomatic and presented with breast cancer symptoms or those at high risk with a first-degree relative who had a history of breast cancer. Participants underwent four breast examinations: clinical breast examination (by an experienced surgeon), the iBreastExam (performed by recent nursing school graduates, who finished nursing school within the previous year), ultrasound, and mammography. Sensitivity, specificity, positive predictive values (PPV), and negative predictive values (NPV) of the iBreastExam and clinical breast examination for detecting any breast lesion and suspicious breast lesions were calculated, using mammography and ultrasound as the reference standard. FINDINGS Between June 19 and Dec 5, 2019, 424 Nigerian women were enrolled (151 [36%] at high risk of breast cancer and 273 [64%] symptomatic women). The median age of participants was 46 years (IQR 42-52). 419 (99%) women had a breast imaging-reporting and data system (BI-RADS) assessment and were included in the analysis. For any breast finding, the iBreastExam showed significantly better sensitivity than clinical breast examination (63%, 95% CI 57-69 vs 31%, 25-37; p<0·0001), and clinical breast examination showed significantly better specificity (94%, 90-97 vs 59%, 52-66; p<0·0001). For suspicious breast findings, the iBreastExam showed similar sensitivity to clinical breast examination (86%, 95% CI 70-95 vs 83%, 67-94; p=0·65), and clinical breast examination showed significantly better specificity (50%, 45-55 vs 86%, 83-90; p<0·0001). The iBreastExam and clinical breast examination showed similar NPVs for any breast finding (56%, 49-63 vs 52%, 46-57; p=0·080) and suspicious findings (98%, 94-99 vs 98%, 96-99; p=0·42), whereas the PPV was significantly higher for clinical breast examination in any breast finding (87%, 77-93 vs 66%, 59-72; p<0·0001) and suspicious findings (37%, 26-48 vs 14%, 10-19; p=0·0020). Of 15 biopsy-confirmed cancers, clinical breast examination and the iBreastExam detected an ipsilateral breast abnormality in 13 (87%) women and missed the same two cancers (both <2 cm). INTERPRETATION The iBreastExam by nurses showed a high sensitivity and NPV, but lower specificity than surgeon's clinical breast examination for identifying suspicious breast lesions. In locations with few experienced practitioners, the iBreastExam might provide a high sensitivity breast evaluation tool. Further research into improved specificity with device updates and cost feasibility in low-resource settings is warranted. FUNDING Prevent Cancer Foundation Global Community Grant Award with additional support from the P30 Cancer Center Support Grant (P30 CA008748).
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Affiliation(s)
- Victoria L Mango
- Breast Imaging Service, Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
| | | | - Adeleye D Omisore
- Obafemi Awolowo University Teaching Hospital Complex, Ile-Ife, Nigeria
| | | | | | - Varadan Sevilimedu
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gregory C Knapp
- Department of Surgery, Dalhousie University, Halifax, NS, Canada
| | - Evan Steinberg
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | | | - Anya Romanoff
- Department of Global Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Philip E Castle
- Division of Cancer Prevention, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Olusegun Alatise
- Obafemi Awolowo University Teaching Hospital Complex, Ile-Ife, Nigeria
| | - T Peter Kingham
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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Clanahan JM, Reddy S, Broach RB, Rositch AF, Anderson BO, Wileyto EP, Englander BS, Brooks AD. Clinical Utility of a Hand-Held Scanner for Breast Cancer Early Detection and Patient Triage. JCO Glob Oncol 2021; 6:27-34. [PMID: 32031433 PMCID: PMC6998011 DOI: 10.1200/jgo.19.00205] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
PURPOSE Globally, breast cancer represents the most common cause of cancer death among women. Early cancer diagnosis is difficult in low- and middle-income countries, most of which are unable to support population-based mammographic screening. Triage on the basis of clinical breast examination (CBE) alone can be difficult to implement. In contrast, piezo-electric palpation (intelligent Breast Exam [iBE]) may improve triage because it is portable, low cost, has a short learning curve, and provides electronic documentation for additional diagnostic workup. We compared iBE and CBE performance in a screening patient cohort from a Western mammography center. METHODS Women presenting for screening or diagnostic workup were enrolled and underwent iBE then CBE, followed by mammography. Mammography was classified as negative (BI-RADS 1 or 2) or positive (BI-RADS 3, 4, or 5). Measures of accuracy and κ score were calculated. RESULTS Between April 2015 and May 2017, 516 women were enrolled. Of these patients, 486 completed iBE, CBE, and mammography. There were 101 positive iBE results, 66 positive CBE results, and 35 positive mammograms. iBE and CBE demonstrated moderate agreement on categorization (κ = 0.53), but minimal agreement with mammography (κ = 0.08). iBE had a specificity of 80.3% and a negative predictive value of 94%. In this cohort, only five of 486 patients had a malignancy; iBE and CBE identified three of these five. The two cancers missed by both modalities were small—a 3-mm retro-areolar and a 1-cm axillary tail. CONCLUSION iBE performs comparably to CBE as a triage tool. Only minimal cancers detected through mammographic screening were missed on iBE. Ultimately, our data suggest that iBE and CBE can synergize as triage tools to significantly reduce the numbers of patients who need additional diagnostic imaging in resource-limited areas.
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Affiliation(s)
- Julie M Clanahan
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Sanjana Reddy
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Robyn B Broach
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Anne F Rositch
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Benjamin O Anderson
- Departments of Surgery and Global Health Medicine, University of Washington, Seattle, WA
| | - E Paul Wileyto
- Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | | | - Ari D Brooks
- Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
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Yapa HM, Bärnighausen T. Implementation science in resource-poor countries and communities. Implement Sci 2018; 13:154. [PMID: 30587195 PMCID: PMC6307212 DOI: 10.1186/s13012-018-0847-1] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 12/05/2018] [Indexed: 12/18/2022] Open
Abstract
Background Implementation science in resource-poor countries and communities is arguably more important than implementation science in resource-rich settings, because resource poverty requires novel solutions to ensure that research results are translated into routine practice and benefit the largest possible number of people. Methods We reviewed the role of resources in the extant implementation science frameworks and literature. We analyzed opportunities for implementation science in resource-poor countries and communities, as well as threats to the realization of these opportunities. Results Many of the frameworks that provide theoretical guidance for implementation science view resources as contextual factors that are important to (i) predict the feasibility of implementation of research results in routine practice, (ii) explain implementation success and failure, (iii) adapt novel evidence-based practices to local constraints, and (iv) design the implementation process to account for local constraints. Implementation science for resource-poor settings shifts this view from “resources as context” to “resources as primary research object.” We find a growing body of implementation research aiming to discover and test novel approaches to generate resources for the delivery of evidence-based practice in routine care, including approaches to create higher-skilled health workers—through tele-education and telemedicine, freeing up higher-skilled health workers—through task-shifting and new technologies and models of care, and increasing laboratory capacity through new technologies and the availability of medicines through supply chain innovations. In contrast, only few studies have investigated approaches to change the behavior and utilization of healthcare resources in resource-poor settings. We identify three specific opportunities for implementation science in resource-poor settings. First, intervention and methods innovations thrive under constraints. Second, reverse innovation transferring novel approaches from resource-poor to research-rich settings will gain in importance. Third, policy makers in resource-poor countries tend to be open for close collaboration with scientists in implementation research projects aimed at informing national and local policy. Conclusions Implementation science in resource-poor countries and communities offers important opportunities for future discoveries and reverse innovation. To harness this potential, funders need to strongly support research projects in resource-poor settings, as well as the training of the next generation of implementation scientists working on new ways to create healthcare resources where they lack most and to ensure that those resources are utilized to deliver care that is based on the latest research results.
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Affiliation(s)
- H Manisha Yapa
- The Kirby Institute, University of New South Wales, Sydney, Australia.,Africa Health Research Institute (AHRI), KwaZulu-Natal, South Africa
| | - Till Bärnighausen
- Africa Health Research Institute (AHRI), KwaZulu-Natal, South Africa. .,Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, USA. .,Heidelberg Institute of Global Health, Medical Faculty and University Hospital, University of Heidelberg, INF 130.3, 69120, Heidelberg, Germany.
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Khandelwal R. Health worker led breast examination in rural India using electro-mechanical hand-held breast palpation device. ACTA ACUST UNITED AC 2018. [DOI: 10.15406/jcpcr.2018.09.00337] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Broach RB, Geha R, Englander BS, DeLaCruz L, Thrash H, Brooks AD. A cost-effective handheld breast scanner for use in low-resource environments: a validation study. World J Surg Oncol 2016; 14:277. [PMID: 27793162 PMCID: PMC5084434 DOI: 10.1186/s12957-016-1022-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 10/07/2016] [Indexed: 12/05/2022] Open
Abstract
Background With the incidence of breast cancer rising worldwide, we are evaluating the iBreastExam (iBE) (UE LifeSciences Inc.), a handheld breast scanning device that can be utilized by community health workers to screen for breast abnormalities. The purpose of this study is to determine the sensitivity of the iBE in a population undergoing diagnostic breast imaging. Methods Adult patients presenting to a breast imaging center for a diagnostic workup were eligible. Patients underwent an iBE exam performed by a trained ultrasound technician followed by their indicated imaging. Demographic, imaging, and biopsy data were recorded. Results Seventy-eight iBE exams were completed, 77 females and one male with a mean age of 42 (21–79). All patients were evaluated by ultrasound, 52 had diagnostic mammography and 39 had biopsies. Imaging and/or biopsy confirmed a mass (fibroadenoma, cyst, papilloma, myofibroblastoma, fat necrosis, DCIS, or cancer) in 60 patients. Twelve patients had a cancer diagnosed. In total, 342 quadrants were scanned, 77 quadrants had lesions confirmed on imaging, and iBE correctly identified 66 lesions for a sensitivity of 86 % and specificity of 89 %. Conclusions This validation study demonstrated excellent sensitivity of iBE for the identification of clinically significant lesions in patients presenting for diagnostic imaging. Trial registration A Cost-Effective Handheld Breast Scanner for Use in Low Resource Environments: A Validation Study: NCT02814292.
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Affiliation(s)
- Robyn B Broach
- Department of Surgery, University of Pennsylvania School of Medicine, 3400 Spruce Street, 4 Silverstein, Philadelphia, PA, 19104, USA
| | - Rula Geha
- Department of Surgery, University of Pennsylvania School of Medicine, 3400 Spruce Street, 4 Silverstein, Philadelphia, PA, 19104, USA
| | - Brian S Englander
- Department of Radiology, Pennsylvania Hospital, 800 Spruce Street, Philadelphia, PA, 19106, USA
| | - Lucy DeLaCruz
- Department of Surgery, University of Pennsylvania School of Medicine, 3400 Spruce Street, 4 Silverstein, Philadelphia, PA, 19104, USA
| | - Holly Thrash
- UE Lifesciences Inc., 3711 Market St, Suite 800, Philadelphia, PA, 19104, USA
| | - Ari D Brooks
- Department of Surgery, University of Pennsylvania School of Medicine, 800 Walnut Street, 20th Floor, Philadelphia, PA, 19107, USA.
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