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Wang X, Chen C, Chen C, Zuo E, Han S, Yang J, Yan Z, Lv X, Hou J, Jia Z. Novel SERS biosensor for rapid detection of breast cancer based on Ag 2O-Ag-PSi nanochips. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 303:123226. [PMID: 37567026 DOI: 10.1016/j.saa.2023.123226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/11/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023]
Abstract
Ag2O-Ag-PSi (porous silicon) surface-enhanced Raman scattering (SERS) chip was successfully synthesized by electrochemical corrosion, in situ reduction and heat treatment technology. The influence of different heat treatment temperature on SERS performance of the chip is studied. The results show that the chip treated at 300 °C has the best SERS performance. The chip was composed of Ag2O-Ag nano core shell with a diameter of 40-60 nm and porous silicon substrate. Then, the optimized chip was used to perform SERS test on serum samples from 30 healthy volunteers and 30 early breast cancer patients, and the baseline was corrected by LabSpec6 software. Finally, the data were analyzed by principal component analysis combined with t-distributed Stochastic Neighbor Embedding (PCA-t-SNE). The results showed that the accuracy of the improved substrate combined with multivariate statistical method was 98%. The shelf life of the chips exceeded six months due to the presence of the Ag2O shell. This study provides a basis for developing a low-cost rapid and sensitive early screening technology for breast cancer.
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Affiliation(s)
- Xuehua Wang
- College of Physical Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Cheng Chen
- College of Software, Xinjiang University, Urumqi 830046, China
| | - Chen Chen
- College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China
| | - Enguang Zuo
- College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China
| | - Shibin Han
- College of Physical Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Jie Yang
- College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China
| | - Ziwei Yan
- College of Software, Xinjiang University, Urumqi 830046, China
| | - Xiaoyi Lv
- College of Software, Xinjiang University, Urumqi 830046, China.
| | - Junwei Hou
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China.
| | - Zhenhong Jia
- College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China.
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Crystal J, Mella-Catinchi J, Xu K, Weingrad D. Current Surgical Innovations in the Treatment of Breast Cancer. Breast Cancer 2022. [DOI: 10.36255/exon-publications-breast-cancer-surgical-innovation] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Pereira RDO, Silva BBD. Critical imaging analysis of suspicious non-palpable breast lesions. ACTA ACUST UNITED AC 2020; 66:1610-1612. [PMID: 33331562 DOI: 10.1590/1806-9282.66.12.1610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 08/27/2020] [Indexed: 12/24/2022]
Affiliation(s)
- Renato de Oliveira Pereira
- Programa de Pós-Graduação, Rede Nordeste de Biotecnologia (RENORBIO), Área de Saúde, Universidade Federal do Piauí, Teresina, PI, Brasil
| | - Benedito Borges da Silva
- Programa de Pós-Graduação, Rede Nordeste de Biotecnologia (RENORBIO), Área de Saúde, Universidade Federal do Piauí, Teresina, PI, Brasil
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Chan BKY, Wiseberg‐Firtell JA, Jois RHS, Jensen K, Audisio RA. Localization techniques for guided surgical excision of non-palpable breast lesions. Cochrane Database Syst Rev 2015; 2015:CD009206. [PMID: 26718728 PMCID: PMC8881987 DOI: 10.1002/14651858.cd009206.pub2] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Breast cancer is the most common form of cancer and the second leading cause of death amongst women in Europe. Amongst five invasive cancers per 1000 women detected in screening, 2.7 were < 15 mm in diameter; and others reported that over one third of excised breast lesions were clinically occult. The challenge is to accurately locate small non-palpable lesions intraoperatively for optimal therapeutic outcome. A secondary important goal is to remove the smallest amount possible of healthy glandular tissue for optimal cosmesis. Currently the most widely adopted approach (80% in one survey) in guided breast-conserving surgery for excising non-palpable breast lesions is wire-guided localization (WGL). With the clinical setting shifting towards earlier non-palpable breast lesions being detected through screening, we investigated whether the current standard in assisting surgical excision of these lesions, WGL, yields the best therapeutic outcome for women with breast cancer. OBJECTIVES To assess the therapeutic outcomes of any new form of guided surgical intervention for non-palpable breast lesions against wire-guided localization, the current gold standard. SEARCH METHODS We searched the Cochrane Breast Cancer Group's (CBCG) Specialized Register, MEDLINE (via PubMed), the Cochrane Central Register of Controlled Trials (CENTRAL), and the World Health Organization (WHO) International Clinical Trials Registry Platform (ICTRP) search portal from the earliest available date up to 30 March 2015. We also handsearched recent conference proceedings and sought information from experts in the field. SELECTION CRITERIA Two review authors, BC and RJ, independently screened by title and abstract the studies we had identified through the search strategy; when this was inconclusive, they examined the full-text article for inclusion. We resolved any discrepancies regarding eligibility by discussion with a third review author, RA. DATA COLLECTION AND ANALYSIS Three review authors, BC, JW, and RJ, independently extracted data using a standardized data sheet. We performed all analyses using Review Manager (RevMan) or the R meta package, and in accordance with the Cochrane Handbook for Systematic Reviews of Interventions. We reported results via a graphical assessment using forest plots showing the study estimates. We considered and discussed additional subgroup and sensitivity analyses. MAIN RESULTS We identified 11 randomized controlled trials (RCTs) that met the inclusion criteria of this Cochrane review and included eight trials in the meta-analyses. Six RCTs compared radioguided occult lesion localization (ROLL) versus WGL, and two RCTs compared radioactive iodine ((125)I) seed localization (RSL) versus WGL. Of the three remaining trials, one RCT compared cryo-assisted techniques (CAL) versus WGL, one compared intraoperative ultrasound-guided lumpectomy (IOUS) versus WGL, and one compared modified ROLL technique in combination with methylene dye (RCML) versus WGL. Of the trials we included in the meta-analysis, there were a total of 1273 participants with non-palpable breast lesions (627 participants (WGL); 443 participants (ROLL); and 203 participants (RSL)). The participant population varied considerably between included trials, which included participants with both non-palpable benign and malignant lesions, and varied in defining clear margins. The included trials did not report any long-term outcomes.In general, the outcomes of WGL, ROLL and RSL were comparable.ROLL demonstrated favourable results in successful localization (risk ratio (RR) 0.60, 95% confidence interval (CI) 0.16 to 2.28; 869 participants; six trials), positive excision margins (RR 0.74, 95% CI 0.42 to 1.29; 517 participants; five trials), and re-operation rates (RR 0.51, 95% CI 0.21 to 1.23; 583 participants; four trials) versus WGL, but none were statistically significant. WGL was significantly superior to RSL in successfully localizing non-palpable lesions (RR 3.85, 95% CI 1.21 to 12.19; 402 participants; two trials). However, for successful excision, ROLL and RSL have comparable outcomes versus WGL (ROLL versus WGL: RR 1.00, 95% CI 0.99 to 1.01; 871 participants; six trials; RSL versus WGL: RR 1.00, 95% CI 0.99 to 1.01; 402 participants; two trials). These findings were similar in that RSL demonstrated favourable results over WGL in positive tumour margins (RR 0.67, 95% CI 0.43 to 1.06; 366 participants; two trials), and re-operation rates (RR 0.80, 95% CI 0.48 to 1.32; 305 participants; one trial) but neither reached statistical significance. In contrast, WGL had fewer postoperative complications to both ROLL (RR 1.18, 95% CI 0.71 to 1.98; 642 participants; four trials) and RSL (RR 1.51, 95% CI 0.75 to 3.03; 305 participants; one trial), although this was also not statistically significant.The overall quality of evidence was good. The main risk of bias amongst included studies consisted of incomplete data sets, selective reporting, and allocation concealment. Interpretation and applicability of this meta-analysis was hindered by the mixed indication of diagnostic versus therapeutic purposes when undertaking WGL, ROLL, or RSL, leading to a high level of mixed pathology in numerous trials. Other limitations include underpowered studies, lack of data in standardized format for meta-analysis, lack of complete data amongst the trials, and absence of long-term data. AUTHORS' CONCLUSIONS Owing to a lack of trials in certain localization techniques, we could only draw conclusions about ROLL and RSL versus WGL. There is no clear evidence to support one guided technique for surgically excising a non-palpable breast lesion over another. Results from this Cochrane review support the continued use of WGL as a safe and tested technique that allows for flexibility in selected cases when faced with extensive microcalcification. ROLL and RSL could be offered to patients as a comparable replacement for WGL as they are equally reliable. Other techniques such as IOUS, RCML, and CAL are of academic interest, but recommendation for routine use in the clinical environment and oncological outcomes require further validation. The results of this Cochrane review also stress the need for more fully powered RCTs to evaluate the best technique according to the comprehensive criteria described, with a more consistent and standardized approach in outcome reporting.
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Affiliation(s)
- Benjamin KY Chan
- St Helens & Knowsley Teaching Hospital NHS TrustDepartment of SurgeryMarshalls Cross RoadSt HelensUKWA9 3DA
| | | | - Ramesh HS Jois
- St Helens & Knowsley Teaching Hospital NHS TrustDepartment of SurgeryMarshalls Cross RoadSt HelensUKWA9 3DA
| | - Katrin Jensen
- Heidelberg University HospitalInstitute of Medical Biometry and InformaticsIm Neuenheimer Feld 305HeidelbergGermany69120
| | - Riccardo A Audisio
- St Helens & Knowsley Teaching Hospital NHS TrustDepartment of SurgeryMarshalls Cross RoadSt HelensUKWA9 3DA
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İflazoğlu N, Üreyen O, Atahan MK, Meral UM, Sezgin G, Tarcan E. A Retrospective Comparative Study of Image-Guided Excisional Biopsy in High-Risk Non-Palpable Breast Lesions: Predictive Factors for Malignancy. THE JOURNAL OF BREAST HEALTH 2015; 11:132-137. [PMID: 28331708 DOI: 10.5152/tjbh.2015.2628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 05/09/2015] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The use of mammography (MM) in breast cancer screening programs has been increasing in recent years. Thus, increasing the number of detected nonpalpable breast cancer patients, through early diagnosis and treatment also increased survival rates. In our study, we wanted to share the factors about imaging-guided exicional biopsies for non-palpable breast lesions in postoperative proven breast carcinoma patients. MATERIALS AND METHODS The surgical data were reviewed for 83 patients with non-palpabl high-risk breast lesions undergoing imaging-guided surgery in our department between January, 2006 and May, 2011. Histopathologic results and age, ultrasound(US) results, MM image results, BI-RADS categorization, localization of lesion(quadrant) were assessed and factors for predicting malignity were detected. RESULTS Median age was 52 (age range 32-80 years). 29 (34,9%) of patients were malign in histopathologic results. In four patient, re-excision performed because of positive surgical margins. Axillary examination results were normal in 24 (82,7%) of malignant patients. In MM examination; microcalcifications and nodular opasity were diagnosed in 74,6% of patients before surgery. There were no differance about malignity in these groups after surgery (p:0,428). 59% and 32,7% of patients were BI-RADS 4 and 3, respectively. Postoperative diagnosed malignancies in BI-RADS 4 group were significantly higher than BI-RADS 3 group (p:<0,001). CONCLUSION In our study; we concluded that, preoperative BI-RADS categorization (US and MM) is correlated with histopathologic findings after surgery and imaging-guided breast surgery is effective for diagnosis of early-stage breast carcinoma.
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Affiliation(s)
- Nidal İflazoğlu
- Department of General Surgery, İzmir Atatürk Training and Research Hospital, İzmir, Turkey
| | - Orhan Üreyen
- Department of General Surgery, Bozyaka Training and Research Hospital, İzmir, Turkey
| | - Murat Kemal Atahan
- Department of General Surgery, İzmir Atatürk Training and Research Hospital, İzmir, Turkey
| | - Ulvi Mehmet Meral
- Department of General Surgery, İzmir Military Hospital, İzmir, Turkey
| | - Gülten Sezgin
- Department of Radiology, İzmir Atatürk Training and Research Hospital, İzmir, Turkey
| | - Ercüment Tarcan
- Department of General Surgery, İzmir Atatürk Training and Research Hospital, İzmir, Turkey
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Cavalcanti TCS, Malafaia O, Nassif PAN, Skare TL, Ogata DC, Miguel MT, Gomes LK. Non-palpable breast lesions marked with coal suspension: evaluation of anatomopathological aspects, viability of interpretation and inflammatory response. Rev Col Bras Cir 2013; 39:469-75. [PMID: 23348642 DOI: 10.1590/s0100-69912012000600005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Accepted: 07/30/2012] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To analyze the efficiency of labeling impalpable breast lesions with inert charcoal suspension; to evaluate the morphological alterations associated with its use and to determine whether the use of charcoal labeling hampers the diagnostic interpretation of the pathologist. METHODS Was evaluated a total of 135 cases of impalpable breast lesions previously labeled with charcoal suspension. Histological H&E stained slides containing charcoal pigments were analyzed using optical microscopy, by which both quantitative and qualitative evaluations with regards to inflammatory response and interference in diagnosis were performed. Lymphocyte, giant cells and neutrophils were evaluated and quantified. Moreover, the distribution of the charcoal suspension present in the lesions was evaluated. RESULTS As to the quantitative and qualitative evaluation of the inflammatory response caused by the use of charcoal labeling, granulomas were present in all samples regardless of the quantity of injected charcoal. Lymphocytic inflammatory response was absent in only 5.19% of the samples, 82.22% exhibited discrete intensity and 12.59% were moderate. With regards to acute inflammatory response, 42.96% showed total absence of neutrophilic exudate, whereas 42.22% contained discrete and 11.11% moderate neutrophilic exudate, and only 3.7% of cases had intense neutrophilic exudate. CONCLUSION This study corroborates the utility and easiness of the charcoal method as a mean of efficient labeling of impalpable breast lesions; this technique is easy to use, has a low cost, high efficiency and does not interfere with the histological analysis. Moreover, it is comfortable for the patient and is of great help in finding and localizing the lesions for both the surgeon and pathologist.
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7
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Rapid increase in incidence of breast ductal carcinoma in situ in Girona, Spain 1983–2007. Breast 2012; 21:646-51. [DOI: 10.1016/j.breast.2012.01.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Revised: 01/23/2012] [Accepted: 01/24/2012] [Indexed: 11/21/2022] Open
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Makkun S, Prueksadee J, Chayakulkheeree J, Boonjunwetwat D. The accuracy of ultrasound guided 14–gauge core needle breast biopsy: Correlation with surgical excision or long term follow–up. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2011. [DOI: 10.1016/s2222-1808(11)60033-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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9
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Chan BKY, Jois RHS, Wiseberg JA, Audisio RA. Localization techniques for guided surgical excision of non-palpable breast lesions. THE COCHRANE DATABASE OF SYSTEMATIC REVIEWS 2011. [DOI: 10.1002/14651858.cd009206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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10
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Pichardo-Molina JL, Frausto-Reyes C, Barbosa-García O, Huerta-Franco R, González-Trujillo JL, Ramírez-Alvarado CA, Gutiérrez-Juárez G, Medina-Gutiérrez C. Raman spectroscopy and multivariate analysis of serum samples from breast cancer patients. Lasers Med Sci 2007; 22:229-36. [PMID: 17297595 DOI: 10.1007/s10103-006-0432-8] [Citation(s) in RCA: 117] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2006] [Accepted: 11/30/2006] [Indexed: 10/23/2022]
Abstract
Serum samples were studied using Raman spectroscopy and analyzed through the multivariate statistical methods of principal component analysis (PCA) and linear discriminant analysis (LDA). The blood samples were obtained from 11 patients who were clinically diagnosed with breast cancer and 12 healthy volunteer controls. The PCA allowed us to define the wavelength differences between the spectral bands of the control and patient groups. However, since the differences in the involved molecules were in their tertiary or quaternary structure, it was not possible to determine what molecule caused the observed differences in the spectra. The ratio of the corresponding band intensities were analyzed by calculating the p values and it was found that only seven of these band ratios were significant and corresponded to proteins, phospholipids, and polysaccharides. These specific bands might be helpful during screening for breast cancer using Raman Spectroscopy of serum samples. It is also shown that serum samples from patients with breast cancer and from the control group can be discriminated when the LDA is applied to their Raman spectra.
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Affiliation(s)
- J L Pichardo-Molina
- Centro de Investigaciones en Optica A C, Loma del Bosque115, Lomas del Campestre, 37150, León, GTO, México.
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Andreu FJ, Sáez A, Sentís M, Rey M, Fernández S, Dinarès C, Tortajada L, Ganau S, Palomar G. Breast core biopsy reporting categories—An internal validation in a series of 3054 consecutive lesions. Breast 2007; 16:94-101. [PMID: 16982194 DOI: 10.1016/j.breast.2006.06.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2006] [Revised: 06/16/2006] [Accepted: 06/16/2006] [Indexed: 11/29/2022] Open
Abstract
We reviewed 3226 consecutive core biopsies (CBs) of 3054 mammographically detected breast lesions performed at our Centre from November 1993 to June 2003. CB diagnoses, classified according to the Non-operative Diagnosis Subgroup of the British National Health Service Breast Cancer Screening Programme (NHSBSP), were B5 (37.1%), B4 (0.5%), B3 (7.6%), B2 (50.9%) and B1 (3.9%). It was necessary to repeat the procedure in 172 cases (5.3%). The values for absolute sensitivity and specificity are 90.8% and 83.8%, respectively. The positive predictive value for categories B4 and B5 is 100%, with no false-positives. The positive predictive value for category B3 is 16.3%. The negative predictive value for B2 category is 97.2%, with a false-negative rate of 3.5%. In conclusion, this system of analysis has enabled us to confirm that our CB results surpass the minimum recommended standards proposed by the NHSBSP.
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Affiliation(s)
- Francisco Javier Andreu
- Pathology Department, UDIAT-Centre Diagnòstic Corporació Parc Taulí, Parc Taulí, s/n., 08208 Sabadell, Spain.
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Senn Bahls E, Dupont Lampert V, Oelschlegel C, Senn HJ. Multitarget stereotactic core-needle breast biopsy (MSBB)—an effective and safe diagnostic intervention for non-palpable breast lesions: A large prospective single institution study. Breast 2006; 15:339-46. [PMID: 16488609 DOI: 10.1016/j.breast.2005.08.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2005] [Revised: 07/21/2005] [Accepted: 08/22/2005] [Indexed: 11/15/2022] Open
Abstract
Multi-target stereotactic core-needle breast biopsy (MSBB) with large core needles is a modern and effective method to quickly determine the histologic nature of non-palpable breast lesions in an easy ambulatory setting. The number of patients with mammographically detectable, suspicious breast lesions is constantly increasing due to enhanced breast cancer awareness in Western female populations and with expanding screening mammography activities. MSBB is a minimally invasive diagnostic procedure, performed on an ambulatory basis under local anaesthesia in the prone position on a specially constructed stereotactic biopsy table. The patient is able to resume normal activities 1 h after the biopsy procedure. Technical and medical complications are extremely rare. In our study, we analysed the histological results of 426 MSBB procedures in 389 consecutive female patients during the years 1998-2002, and in 91 cases we were able to compare the histologic results of MSBB with the definitive histology of subsequent excisional biopsies. MSBB was technically successful in 415 out of 426 procedures (97.4%). The sensitivity for malignancy was 94.6% (87 out of 92). MSBB, therefore, is to be qualified as a remarkably reliable, patient-friendly and economic diagnostic breast intervention and was well tolerated and highly accepted by virtually all female patients involved in this single-institution feasibility and effectiveness study.
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Affiliation(s)
- E Senn Bahls
- Center for Tumor Detection+Prevention (ZeTuP), St. Gallen, Switzerland
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13
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Abati A, Simsir A. Breast Fine Needle Aspiration Biopsy: Prevailing Recommendations and Contemporary Practices. Clin Lab Med 2005; 25:631-54, v. [PMID: 16308084 DOI: 10.1016/j.cll.2005.08.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In 1996, a National Cancer Institute conference was held in Bethesda,Maryland to define parameters for the practice of breast fine needle aspiration (BFNA). Representatives of the American Society of Cytopathology, Papanicolaou Society of Cytopathology, American College of Radiology, American College of Obstetricians & Gynecologists, Society of Surgical Oncology, American Academy of Family Physicians, College of American Pathologists, National Consortium of Breast Centers, International Academy of Cytology, American Society of Clinical Pathologists, American Cancer Society, American College of Surgeons, and American Society for Cytotechnology developed and reviewed recommendations. These guidelines were referred to as "The Uniform Approach to Breast Fine Needle Aspiration Biopsy." This article reviews these recommendations and the contemporary evolution of the practice of BFNA since their original publication.
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Affiliation(s)
- Andrea Abati
- Cytopathology Section, National Cancer Institute/National Institutes of Health, Bethesda, MD 20892, USA.
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14
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Brooksby B, Jiang S, Dehghani H, Pogue BW, Paulsen KD, Weaver J, Kogel C, Poplack SP. Combining near-infrared tomography and magnetic resonance imaging to study in vivo breast tissue: implementation of a Laplacian-type regularization to incorporate magnetic resonance structure. JOURNAL OF BIOMEDICAL OPTICS 2005; 10:051504. [PMID: 16292948 DOI: 10.1117/1.2098627] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
An imaging system that simultaneously performs near infrared (NIR) tomography and magnetic resonance imaging (MRI) is used to study breast tissue phantoms and a healthy woman in vivo. An NIR image reconstruction that exploits the combined data set is presented that implements the MR structure as a soft-constraint in the NIR property estimation. The algorithm incorporates the MR spatially segmented regions into a regularization matrix that links locations with similar MR properties, and applies a Laplacian-type filter to minimize variation within each region. When prior knowledge of the structure of phantoms is used to guide NIR property estimation, root mean square (rms) image error decreases from 26 to 58%. For a representative in vivo case, images of hemoglobin concentration, oxygen saturation, water fraction, scattering power, and scattering amplitude are derived and the properties of adipose and fibroglandular breast tissue types, identified from MRI, are quantified. Fibroglandular tissue is observed to have more than four times as much water content as adipose tissue, almost twice as much blood volume, and slightly reduced oxygen saturation. This approach is expected to improve recovery of abnormalities within the breast, as the inclusion of structural information increases the accuracy of recovery of embedded heterogeneities, at least in phantom studies.
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Affiliation(s)
- Ben Brooksby
- Dartmouth College, Thayer School of Engineering, 8000 Cummings Hall, Hanover, New Hampshire 03755, USA
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Martínez-Gálvez M, Aguilar J, Andrés B, Torres S, Carrasco L, Sol Muelas M, Chaves A, Flores B, Luis Aguayo J. Biopsia guiada por arpón de lesiones de mama no palpables y no ecovisibles: una modificación técnica. Cir Esp 2004. [DOI: 10.1016/s0009-739x(04)72352-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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16
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Mottahedeh M, Rashid MH, Gateley CA. Final diagnoses following C3 (atypical, probably benign) breast cytology. Breast 2003; 12:276-9. [PMID: 14659313 DOI: 10.1016/s0960-9776(03)00099-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Fine needle aspiration cytology is part of the triple assessment of breast lesions. The final diagnoses are reported in patients with breast lesions that produce C3 or atypical, probably benign cytology. C3 cytology was obtained from 61 breast lesions between January 1998 and December 1999. Ten (16%) of these lesions were malignant, only three of which were clinically or radiologically suspicious or malignant. Three were diagnosed by core biopsy, but three required excision biopsy after a benign core, and four diagnosed by excision without core. For benign lesions; in five the core was considered diagnostic, three were excised to confirm benignity, 11 monitored and 32 excised without core. Core biopsy should be performed in preference to cytology in the assessment of breast lesions. Where C3 cytology is obtained, core biopsy should be performed, but excision biopsy may still be required. The definition of C3 cytology should be changed to indeterminate.
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Affiliation(s)
- M Mottahedeh
- Rapid Access Breast Clinic, Royal Gwent Hospital, Newport, NP20 2UB, South Wales, UK
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