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Cancelled stereotactic biopsy of calcifications not seen using the stereotactic technique: do we still need to biopsy? Eur Radiol 2013; 24:907-12. [DOI: 10.1007/s00330-013-3055-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 10/07/2013] [Accepted: 10/08/2013] [Indexed: 10/26/2022]
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Feig S. Comparison of costs and benefits of breast cancer screening with mammography, ultrasonography, and MRI. Obstet Gynecol Clin North Am 2011; 38:179-96, ix. [PMID: 21419333 DOI: 10.1016/j.ogc.2011.02.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Screening mammography performed annually on all women beginning at age 40 years has reduced breast cancer deaths by 30% to 50%. The cost per year of life saved is well within the range for other commonly accepted medical interventions. Various studies have estimated that reduction in treatment costs through early screening detection may be 30% to 100% or more of the cost of screening. Magnetic resonance imaging (MRI) screening is also cost-effective for very high-risk women, such as BRCA carriers, and others at 20% or greater lifetime risk. Further studies are needed to determine whether MRI is cost-effective for those at moderately high (15%-20%) lifetime risk. Future technical advances could make MRI more cost-effective than it is today. Automated whole-breast ultrasonography will probably prove cost-effective as a supplement to mammography for women with dense breasts.
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Affiliation(s)
- Stephen Feig
- Department of Radiological Sciences, UC Irvine Medical Center, Orange, CA 92868, USA.
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3
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Vandromme MJ, Umphrey H, Krontiras H. Image-guided methods for biopsy of suspicious breast lesions. J Surg Oncol 2011; 103:299-305. [PMID: 21337562 DOI: 10.1002/jso.21795] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The widespread use of breast imaging has resulted in the increased detection of clinically occult suspicious breast lesions. Between 1999 and 2004 the number of breast biopsies in the United States has increased steadily. The armamentarium of methods to biopsy suspicious breast lesions has also increased significantly since the early 1990s with technological advancements for both surgical breast biopsy and percutaneous image guided breast biopsies.
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Affiliation(s)
- Marianne J Vandromme
- Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, UK
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4
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Feig S. Cost-Effectiveness of Mammography, MRI, and Ultrasonography for Breast Cancer Screening. Radiol Clin North Am 2010; 48:879-91. [DOI: 10.1016/j.rcl.2010.06.002] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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5
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Sohn V, Arthurs Z, Herbert G, Keylock J, Perry J, Eckert M, Fellabaum D, Smith D, Brown T. Atypical Ductal Hyperplasia: Improved Accuracy with the 11-Gauge Vacuum-Assisted versus the 14-Gauge Core Biopsy Needle. Ann Surg Oncol 2007; 14:2497-501. [PMID: 17564749 DOI: 10.1245/s10434-007-9454-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2007] [Accepted: 04/24/2007] [Indexed: 11/18/2022]
Abstract
BACKGROUND Percutaneous stereotactic core needle biopsy (CNB) has become the primary diagnostic modality for evaluating nonpalpable, mammographically detected breast lesions. Atypical ductal hyperplasia (ADH) uncovered by CNB confers a significant risk of harboring an occult malignancy in the excisional biopsy specimen; therefore, we sought to determine the benefits of upsizing biopsy needles from 14- to 11-gauge. METHODS Patients with isolated ADH diagnosed by CNB were included for analysis in this retrospective review. Mammographic description, number of needle passes, pathology results, and follow-up data were analyzed and compared to our previously published institutional results with the 14-gauge needle. RESULTS From June 1996 until July 2006, 4,579 CNBs were performed at our tertiary level medical facility. Seventy eight of 88 patients (89%) diagnosed with ADH on CNB with an 11-gauge vacuum-assisted needle underwent open surgical excision. Of these patients, nine (11%) were upgraded to ductal carcinoma in-situ (DCIS) while five (6%) had invasive cancer (IC), giving a total underestimation rate of 17%. These results differ from our previously published series of 14-gauge CNB which revealed an underestimation rate of 36%. Mean number of passes obtained at time of biopsy, mean age of patients, and characteristic radiographic abnormalities were similar for malignant and benign diagnoses. CONCLUSION 11-gauge CNB technique reduces sampling error and improves accuracy, but does not eliminate the risk of missing an underlying malignancy. Surgical excision of ADH identified by CNB is required for definitive diagnosis.
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Affiliation(s)
- Vance Sohn
- Department of Surgery, Madigan Army Medical Center, Building 9040 Fitzsimmons Drive, Tacoma, Washington, USA.
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6
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Golub RM, Bennett CL, Stinson T, Venta L, Morrow M. Cost minimization study of image-guided core biopsy versus surgical excisional biopsy for women with abnormal mammograms. J Clin Oncol 2004; 22:2430-7. [PMID: 15197205 DOI: 10.1200/jco.2004.06.154] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE To describe the clinical and economic consequences of image-guided core biopsy versus surgical excisional biopsy of mammographically identified breast lesions. PATIENTS AND METHODS Clinical and economic data were collected for 1121 patients undergoing core biopsies and 501 patients undergoing surgical biopsies between 1996 and 1998. Lesions were classified according to mammographic degree of suspicion and type of radiographic abnormality. Costs were measured from the societal perspective. A decision analytic model was constructed, with probabilistic sensitivity analysis. RESULTS Lesions diagnosed via core versus surgical biopsy were less likely to be masses (39% v 55%), less likely to be classified as high cancer suspicion (17% v 26%), and less likely to be treated with a single procedure (74% v 81%; P <.001 for each). Cancers diagnosed by a surgical biopsy were less likely to have had a single operative procedure (33% v 84%) and were associated with higher total costs whether mastectomy (US dollars 2775 v US dollars 1849) or lumpectomy (US dollars 2112 v US dollars 1365) was used. Sensitivity analysis showed core biopsy optimal in 95.4% of trials. Core biopsy was favored for low-suspicion lesions, calcifications, and masses, and overall for patients who underwent lumpectomy alone. CONCLUSION Image-guided core biopsy can be cost-saving compared with surgical biopsy, particularly when the mammographic abnormality is classified as low suspicion or consists of calcifications or masses. Moving to a policy in which core biopsy is the preferred approach in these settings has the potential to result in significant cost savings.
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Affiliation(s)
- Robert M Golub
- Department of Medicine, The Lynn Sage Comprehensive Breast Center, Chicago IL 60611, USA
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Geller BM, Oppenheimer RG, Mickey RM, Worden JK. Patient perceptions of breast biopsy procedures for screen-detected lesions. Am J Obstet Gynecol 2004; 190:1063-9. [PMID: 15118643 DOI: 10.1016/j.ajog.2003.10.708] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE This study was undertaken to compare patient perceptions of 2 common image-guided breast biopsy procedures on 3 main outcomes: decision making about which procedure to undergo, its convenience, and its side effects. METHODS Women who had either an excisional or ultrasound-guided core needle breast biopsy in 1997 for a screen-detected lesion had telephone interviews 1 to 3 months after the biopsy. Bivariate associations were tested by using chi(2) and t test statistics. Mulitvariate analyses were used to control for effects of demographic characteristics. RESULTS Most women (66%) could not remember being offered a choice of procedures, and of those who did have a choice, a higher proportion had an excisional biopsy. Only 2% reported being told the cost of the biopsy procedure. Women who had an excisional biopsy compared with those who had undergone a core needle biopsy reported statistically more hours and days off from work and reported more side effects 1 to 3 days after the biopsy (P<.05). Associations between side effects and type of biopsy procedure were unchanged when adjustment was made for demographic characteristics. CONCLUSION Women who had the ultrasound-guided needle biopsy reported significantly fewer side effects and needed less time off from work. When a suspicious lesion is noticed on a screening mammogram, it is important that women and their physicians discuss the benefits and risks of the various biopsy procedures before deciding how to proceed, allowing for informed choice.
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Affiliation(s)
- Berta M Geller
- Department of Family Practice, Office of Health Promotion Research, University of Vermont, Burlington, 05401-3444, USA.
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8
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Fajardo LL, Pisano ED, Caudry DJ, Gatsonis CA, Berg WA, Connolly J, Schnitt S, Page DL, McNeil BJ. Stereotactic and sonographic large-core biopsy of nonpalpable breast lesions. Acad Radiol 2004; 11:293-308. [PMID: 15035520 DOI: 10.1016/s1076-6332(03)00510-5] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
RATIONALE AND OBJECTIVES To determine the diagnostic accuracy of stereotactically and sonographically guided core biopsy (CB) for the diagnosis of nonpalpable breast lesions. MATERIALS AND METHODS Twenty-two institutions enrolled 2,403 women who underwent imaging-guided fine needle aspiration followed by imaging-guided large-CB of nonpalpable breast abnormalities. All mammograms were reviewed for study eligibility by one of two breast imaging radiologists. The protocol for image-guided biopsy, using either ultrasound (USCB) or stereotactic (SCB) guidance, was standardized at all institutions and all biopsy specimens were over-read by one of three expert pathologists. Patients with atypical ductal hyperplasia (ADH), atypical lobular hyperplasia, or lobular neoplasia on CB underwent surgical excision. Those with negative CB but suspicious ("discordant") pre-biopsy mammography also underwent surgical excision. Patients having a negative CB that was concordant with the pre-biopsy mammography suspicion were assigned to follow-up mammography at 6, 12, and 24 months following CB. RESULTS A gold standard diagnosis based on definitive histopathologic diagnosis, mammography follow-up, or an imputed gold standard diagnosis was established for 1,681 patients. Of 310 cases with a gold standard diagnosis of invasive breast carcinoma, 261 (84.2%) were invasive carcinoma, 31 (10%) were ductal carcinoma in situ (DCIS), four (1.3%) were ADH, one (0.3%) was a non-breast cancer, and 13 (4.2%) were benign on CB. For 138 cases with a gold standard diagnosis of DCIS, 113 (81.9%) were DCIS, 20 (14.5%) were ADH, and five (3.6%) were benign on CB. For 57 cases (13 masses, 44 calcifications) with an initial CB diagnosis of ADH, atypical lobular hyperplasia or lobular neoplasia, 20 (35.1%) had a gold standard diagnosis of DCIS (4 masses, 16 calcifications) and four (7.0%) had a gold standard diagnosis of invasive cancer (4 calcifications). Of 144 cases (22 masses, 122 calcifications) with an initial CB diagnosis of DCIS, 31 (21.5%) had a gold standard diagnosis of invasive cancer (10 masses, 21 calcifications). The sensitivity, specificity and accuracy for CB by either imaging guidance method in this trial were .91, 1.00, and .98, respectively. The sensitivity, predictive value negative, and accuracy of CB for diagnosing masses (.96, .99, and .99, respectively) were significantly greater (P < .001) than for calcifications (.84, .94, and .96, respectively). The sensitivity (.89) of SCB for diagnosing all lesions was significantly lower (P = 0.029) than that of USCB (.97) because of the preponderance of calcifications biopsied by SCB versus USCB. There was no difference between USCB and SCB in sensitivity, predictive value negative, or accuracy for the diagnosis of masses (97.3, 98.9, and 99.2, respectively for USCB; 95.6, 98.5, and 98.9 respectively for SCB). CONCLUSION Percutaneous, imaged-guided core breast biopsy is an accurate diagnostic alternative to surgical biopsy in women with mammographically detected suspicious breast lesions.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Biopsy/methods
- Breast Neoplasms/diagnosis
- Breast Neoplasms/diagnostic imaging
- Breast Neoplasms/pathology
- Calcinosis/diagnosis
- Carcinoma, Ductal, Breast/diagnosis
- Carcinoma, Ductal, Breast/pathology
- Carcinoma, Intraductal, Noninfiltrating/diagnosis
- Carcinoma, Intraductal, Noninfiltrating/pathology
- False Positive Reactions
- Female
- Follow-Up Studies
- Humans
- Mammography
- Middle Aged
- Palpation
- Sensitivity and Specificity
- Stereotaxic Techniques
- Ultrasonography, Mammary
- United States/epidemiology
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Affiliation(s)
- Laurie L Fajardo
- Department of Radiology, Johns Hopkins University, Baltimore, MD, USA
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Mainiero MB, Gareen IF, Bird CE, Smith W, Cobb C, Schepps B. Preferential use of sonographically guided biopsy to minimize patient discomfort and procedure time in a percutaneous image-guided breast biopsy program. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2002; 21:1221-1226. [PMID: 12418763 DOI: 10.7863/jum.2002.21.11.1221] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
OBJECTIVE To determine whether preferential use of sonographic guidance for percutaneous biopsy of breast masses results in a subset of patients with a shorter procedure time and less discomfort compared with patients undergoing stereotactic biopsy. METHODS A prospective observational study was performed on 193 women undergoing percutaneous image-guided breast biopsy between 1997 and 1999. Data were collected on room time, physician time, and patient comfort levels for 122 stereotactic and 71 sonographically guided biopsies. Differences between stereotactic and sonographically guided biopsy for all lesions and for masses were analyzed for statistical significance. RESULTS Mean room times were 62.2 minutes for stereotactic biopsy and 39.4 minutes for sonographically guided biopsy (P < .0001). Mean physician times were 23.0 minutes for stereotactic biopsy and 15.8 minutes for sonographically guided biopsy (P < .0001). When we limited our analyses to women undergoing biopsy for masses, the difference in physician time largely disappeared, but the difference in room time remained (P < .0001). Women undergoing stereotactic biopsy were more likely to report discomfort due to body positioning than were women undergoing sonographically guided biopsy (P < .001). These differences existed whether we included all lesions or restricted our analyses to masses. CONCLUSIONS Preferential use of sonographically guided breast biopsy for masses results in shorter procedure times and less patient discomfort compared with prone stereotactic biopsy.
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Affiliation(s)
- Martha B Mainiero
- Department of Diagnostic Imaging, Brown Medical School, Rhode Island Hospital, Providence 02903, USA
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Weinstein SP, Seghal C, Conant EF, Patton JA. Microcalcifications in breast tissue phantoms visualized with acoustic resonance coupled with power Doppler US: initial observations. Radiology 2002; 224:265-9. [PMID: 12091694 DOI: 10.1148/radiol.2241010511] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Calcium carbonate particles embedded in gelatin and turkey breast tissues were visualized with acoustic resonance imaging and power Doppler ultrasonography. Sonography revealed that the region of color level detection corresponded to the location of the calcium carbonate particles. Correlation between color level detection and the location of the particles was confirmed on radiographs of the specimens obtained at core needle biopsy performed through the region of color level detection.
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Affiliation(s)
- Susan P Weinstein
- Department of Radiology, University of Pennsylvania Medical Center, 1 Silverstein Bldg, 3400 Spruce St, Philadelphia, PA 19104, USA
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11
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Abstract
Percutaneous image-guided core biopsy is an accurate, fast, minimally invasive, and less expensive alternative to surgery for the diagnosis of breast lesions. Percutaneous core biopsy is usually performed under stereotactic or ultrasound guidance, using an automated needle or vacuum-assisted biopsy probe. Use of percutaneous core biopsy spares the need for surgery in most women with benign disease and expedites treatment in women with breast cancer. This article reviews advantages, limitations, controversies, and future directions in percutaneous image-guided core breast biopsy.
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Affiliation(s)
- Laura Liberman
- Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.
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12
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Meunier M, Clough K. Fine needle aspiration cytology versus percutaneous biopsy of nonpalpable breast lesions. Eur J Radiol 2002; 42:10-6. [PMID: 12039016 DOI: 10.1016/s0720-048x(01)00480-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Fine needle aspiration (FNA) and core biopsy (CB) are efficient alternatives to surgical biopsy: FNA provides a sampling of cells and is very cost effective. The main limits are insufficient sampling rate and the impossibility to diagnose invasion. CB allows architectural description and the diagnosis of specific benign and malignant lesions, but is more expensive and time-consuming.
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Affiliation(s)
- M Meunier
- Department of Radiology, Institut Curie, 26 rue d'Ulm, 75231 Cedex 05, Paris, France
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Gentry CL, Henry CA. Stereotactic Percutaneous Breast Biopsy: A Comparative Analysis Between Surgeon and Radiologist. Breast J 2002; 5:101-104. [PMID: 11348267 DOI: 10.1046/j.1524-4741.1999.00132.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The purpose of this study was to analyze the use of stereotactic percutaneous breast biopsy in the treatment of nonpalpable breast abnormalities. In addition, we set out to compare the results of both radiologists and surgeons performing the procedure and to provide an estimation of the cost per patient. A retrospective analysis of the use of stereotactic core biopsy (SCBx) to diagnose suspicious breast lesions was performed in 193 patients between December 1995 and February 1997. The study group was compared to a similar group of 106 patients who had needle localization excisional biopsy (NleBx) performed during the same period. Statistical analysis between surgeons and radiologists was performed for the percutaneous procedures. Allowable charges for both specialists were used to compare percutaneous biopsy with open biopsy. Stereotactic percutaneous breast biopsy performed at our institution by either the surgeon or radiologist is an accurate and cost-effective way to evaluate nonpalpable breast abnormalities and saves approximately $1500-$2500 per patient as compared with needle localization excisional biopsy. Adequately trained surgeons and radiologists can achieve similar accuracy in utilizing this new technology for breast diagnosis.
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Liberman L, Gougoutas CA, Zakowski MF, LaTrenta LR, Abramson AF, Morris EA, Dershaw DD. Calcifications highly suggestive of malignancy: comparison of breast biopsy methods. AJR Am J Roentgenol 2001; 177:165-72. [PMID: 11418420 DOI: 10.2214/ajr.177.1.1770165] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The purpose of this study was to compare the usefulness of, and cost of diagnosing with, different breast biopsy methods for women with calcifications highly suggestive of malignancy. MATERIALS AND METHODS One hundred thirty-nine women with calcifications highly suggestive of malignancy underwent diagnostic biopsy. Of these, 89 women had stereotactic biopsy with a 14-gauge automated needle (n = 25), 14-gauge vacuum-assisted probe (n = 17), or 11-gauge vacuum-assisted probe (n = 47); and 50 women had diagnostic surgical biopsy. Medical records were reviewed. Cost savings for stereotactic biopsy were calculated using Medicare data. RESULTS The median number of operations was one for women who had stereotactic biopsy versus two for women who had diagnostic surgical biopsy. The likelihood of undergoing a single operation was significantly greater for women who had stereotactic rather than surgical biopsy, among all women (61/89 [68.5%] vs. 19/50 [38.0%], p < 0.001) and among women treated for breast cancer (55/77 [71.4%] vs. 6/37 [16.2%], p = 0.0000001). Stereotactic 11-gauge vacuum-assisted biopsy, as compared with 14-gauge automated core or 14-gauge vacuum-assisted biopsy, was significantly more likely to spare a surgical procedure (36/47 [76.6%] vs. 16/42 [38.1%], p = 0.0005). Stereotactic 11-gauge vacuum-assisted biopsy resulted in the greatest cost reduction, yielding savings of $315 per case compared with diagnostic surgical biopsy; for women with solitary lesions, stereotactic 11-gauge biopsy decreased the cost of diagnosis by 22.2% ($334/$1502). CONCLUSION For women with calcifications highly suggestive of malignancy, the use of stereotactic rather than surgical biopsy decreases the number of operations. Stereotactic 11-gauge vacuum-assisted biopsy, as compared with 14-gauge automated core or 14-gauge vacuum-assisted biopsy, is significantly more likely to spare a surgical procedure and has the highest cost savings.
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Affiliation(s)
- L Liberman
- Breast Imaging Section, Department of Radiology, Memorial Sloan-Kettering Cancer Center, 1275 York Ave., New York, NY 10021, USA
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15
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Morrow M, Venta L, Stinson T, Bennett C. Prospective comparison of stereotactic core biopsy and surgical excision as diagnostic procedures for breast cancer patients. Ann Surg 2001; 233:537-41. [PMID: 11303136 PMCID: PMC1421283 DOI: 10.1097/00000658-200104000-00009] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To determine whether stereotactic core biopsy (SCNB) is the diagnostic method of choice for all mammographic abnormalities requiring tissue sampling. SUMMARY BACKGROUND DATA Stereotactic core needle biopsy decreases the cost of diagnosis, but its impact on the number of surgical procedures needed to complete local therapy has not been studied in a large, unselected patient population. METHODS A total of 1,852 mammographic abnormalities in 1,550 consecutive patients were prospectively categorized for level of cancer risk and underwent SCNB or diagnostic needle localization and surgical excision. Diagnosis, type of cancer surgery, and number of surgical procedures to complete local therapy were obtained from surgical and pathology databases. RESULTS The malignancy rate was 24%. Surgical biopsy patients were older, more likely to have cancer, and more likely to be treated with breast-conserving therapy than those in the SCNB group. For all types of lesions, regardless of degree of suspicion, patients diagnosed by SCNB were almost three times more likely to have one surgical procedure. However, for patients treated with lumpectomy alone, the number of surgical procedures and the rate of negative margins did not differ between groups. CONCLUSIONS Stereotactic core needle biopsy is the diagnostic procedure of choice for most mammographic abnormalities. However, for patients undergoing lumpectomy without axillary surgery, it is an extra invasive procedure that does not facilitate obtaining negative margins.
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Affiliation(s)
- M Morrow
- Lynn Sage Breast Center and the Department of Surgery, Northwestern University, Chicago, Illinois, USA.
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16
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Brenner RJ, Bassett LW, Fajardo LL, Dershaw DD, Evans WP, Hunt R, Lee C, Tocino I, Fisher P, McCombs M, Jackson VP, Feig SA, Mendelson EB, Margolin FR, Bird R, Sayre J. Stereotactic core-needle breast biopsy: a multi-institutional prospective trial. Radiology 2001; 218:866-72. [PMID: 11230668 DOI: 10.1148/radiology.218.3.r01mr44866] [Citation(s) in RCA: 101] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To assess the accuracy of stereotactic core-needle biopsy (CNB) of nonpalpable breast lesions within the context of clinically important parameters of anticipated tissue-sampling error and concordance with mammographic findings. MATERIALS AND METHODS CNB was performed in 1,003 patients, with results validated at surgery or clinical and mammographic follow-up. Mammographic findings were scored according to the American College of Radiology Breast Imaging Reporting and Data System with a similar correlative scale for histopathologic samples obtained at either CNB or surgery. Agreement of CNB findings with surgical findings or evidence of no change during clinical and mammographic follow-up (median, 24 months) for benign lesions was used to determine results. Three forms of diagnostic discrimination measures (strict, working [strict conditioned by tissue sampling error], applied [working conditioned by concordance of imaging and CNB findings) were used to evaluate the correlation of CNB, surgical, and follow-up results. RESULTS Strict, working, and applied sensitivities were 91% +/- 1.9; 92% +/- 1.8, and 98% +/- 0.9, respectively; strict, working, and applied specificities were 100%, 98% +/- 0.8, and 73% +/- 0.9; strict, working, and applied accuracies were 97%, 96%, and 79%. CONCLUSION Percutaneous stereotactic CNB is an accurate method to establish a histopathologic diagnosis of nonpalpable breast lesions. Accuracy increases when additional surgery is performed for lesions with anticipated sampling error or when CNB findings are discordant with mammographic findings. An understanding of the interrelationship among these parameters is necessary to properly assess results.
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Affiliation(s)
- R J Brenner
- Joyce Eisenberg Keefer Breast Center, John Wayne Cancer Institute, St Johns Health Center, 1328 22nd St, Santa Monica, CA 90404, USA.
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Rubin E, Mennemeyer ST, Desmond RA, Urist MM, Waterbor J, Heslin MJ, Bernreuter WK, Dempsey PJ, Pile NS, Rodgers WH. Reducing the cost of diagnosis of breast carcinoma: impact of ultrasound and imaging-guided biopsies on a clinical breast practice. Cancer 2001; 91:324-32. [PMID: 11180078 DOI: 10.1002/1097-0142(20010115)91:2<324::aid-cncr1005>3.0.co;2-o] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND The objective of this study was to determine whether the use of ultrasound and percutaneous breast biopsies in patients with screen-detected nonpalpable abnormalities can reduce benign open surgical biopsies of the breast without increasing cost or sacrificing detection of potentially curable breast carcinomas. METHOD Using a computerized mammography database and consecutive logs of needle localization procedures and fine- and large core needle biopsies of a single university-based breast imaging practice, the authors determined the breast carcinoma yield and cost of diagnosis over a 14-year period and the changes that occurred over time with the sequential introduction of ultrasound, ultrasound-guided biopsies, and stereotactic biopsies. RESULTS The overall breast carcinoma yield for needle localization biopsies of nonpalpable lesions increased from 21% in 1984 to 68% in 1998 (P < 0.0001). The yield for nonpalpable masses increased from 21% to 87% (P < 0.0001) over the same period. The selective use of ultrasound alone and percutaneous fine- and large core needle biopsy resulted in a substantial reduction in benign open surgical biopsies. A cost analysis showed a 50% reduction in the average expense of discovering breast carcinoma. The breast carcinomas detected after introduction of these methods were prognostically favorable with 88% measuring 1.5 cm or less in size and 66% measuring less than 1 cm. CONCLUSIONS Selective use of ultrasound and imaging-guided percutaneous biopsies can significantly reduce the number of benign open surgical biopsies generated by mammographic screening. This can result in substantial cost savings without decreasing the sensitivity for detecting small potentially curable lesions.
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Affiliation(s)
- E Rubin
- Department of Radiology, University of Alabama at Birmingham School of Medicine, Birmingham, Alabama 35294, USA.
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Liberman L, Ernberg LA, Heerdt A, Zakowski MF, Morris EA, LaTrenta LR, Abramson AF, Dershaw DD. Palpable breast masses: is there a role for percutaneous imaging-guided core biopsy? AJR Am J Roentgenol 2000; 175:779-87. [PMID: 10954467 DOI: 10.2214/ajr.175.3.1750779] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The purpose of this study was to evaluate percutaneous imaging-guided core biopsy in the assessment of selected palpable breast masses. MATERIALS AND METHODS Of 1388 consecutive breast lesions that had percutaneous imaging-guided core biopsy, 155 (11%) were palpable. Palpable masses referred for percutaneous imaging-guided core biopsy included lesions that were small, deep, mobile, vaguely palpable, or multiple. Biopsy guidance was sonography in 140 lesions (90%) and stereotaxis in 15 (10%). Surgical correlation or minimum of 2 years follow-up is available in 115 palpable masses in 107 women. Medical records, imaging studies, and histologic findings were reviewed. RESULTS Of 115 palpable breast masses, 98 (85%) were referred by surgeons to the radiology department for percutaneous imaging-guided core biopsy and 88 (77%) had percutaneous imaging-guided core biopsy on the day of initial evaluation at our institution. Percutaneous imaging-guided core biopsy spared additional diagnostic tissue sampling in 79 (74%) of 107 women, including 57 women with carcinoma and 22 women with benign findings. Percutaneous imaging-guided core biopsy did not spare additional tissue sampling in 28 women (26%), including 15 women in whom surgical biopsy was recommended on the basis of percutaneous biopsy findings and 13 women with benign (n = 7) or malignant (n = 6) percutaneous biopsy findings who chose to undergo diagnostic surgical biopsy. CONCLUSION Percutaneous imaging-guided core biopsy is useful in the evaluation of palpable breast masses that are small, deep, mobile, vaguely palpable, or multiple. In this study, percutaneous imaging-guided core biopsy spared additional diagnostic tissue sampling in 74% women with palpable breast masses.
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Affiliation(s)
- L Liberman
- Department of Radiology, Breast Imaging Section, Memorial Sloan-Kettering Cancer Center, 1275 York Ave., New York, NY 10021, USA
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Liberman L, Sama MP. Cost-effectiveness of stereotactic 11-gauge directional vacuum-assisted breast biopsy. AJR Am J Roentgenol 2000; 175:53-8. [PMID: 10882245 DOI: 10.2214/ajr.175.1.1750053] [Citation(s) in RCA: 84] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The purpose of our study was to determine the frequency with which stereotactic 11-gauge directional vacuum-assisted breast biopsy obviated a surgical procedure and to calculate cost savings attributable to that biopsy method. MATERIALS AND METHODS We retrospectively reviewed 200 consecutive solitary nonpalpable lesions on which stereotactic 11-gauge directional vacuum-assisted breast biopsy was performed. Cost savings were calculated using Medicare reimbursements. Mammograms, histologic findings, and medical records were reviewed. RESULTS Stereotactic 11-gauge directional vacuum-assisted biopsy obviated a surgical procedure in 151 (76%) of 200 lesions, including 112 (73%) of 154 calcific lesions and 39 (85%) of 46 masses. Reasons for not obviating a surgical procedure in 49 lesions (25%) included recommendation for surgical biopsy in 35 lesions (18%), small carcinomas treated by excision in 10 lesions (5%), and histologic underestimation in four lesions (2%). Stereotactic 11-gauge directional vacuum-assisted biopsy decreased the cost of diagnosis by S264 per case, a 20% ($264/$1289) decrease in the cost of diagnosis compared with surgical biopsy. Of 200 lesions that had stereotactic 11-gauge directional vacuum-assisted biopsy, 106 (53%) would not have been amenable to 14-gauge automated core biopsy because of their small size, their superficial location, or inadequate breast thickness. CONCLUSION Stereotactic 11-gauge directional vacuum-assisted breast biopsy obviated a surgical procedure in 76% of lesions, yielding a 20% decrease in cost of diagnosis compared with surgical biopsy. Although savings per case are modest, 11-gauge directional vacuum-assisted biopsy expands the spectrum of lesions amenable to stereotactic biopsy, increasing cost savings in the population.
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Affiliation(s)
- L Liberman
- Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA
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20
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Liberman L. Centennial dissertation. Percutaneous imaging-guided core breast biopsy: state of the art at the millennium. AJR Am J Roentgenol 2000; 174:1191-9. [PMID: 10789761 DOI: 10.2214/ajr.174.5.1741191] [Citation(s) in RCA: 168] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- L Liberman
- Department of Radiology, Breast Imaging Section, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA
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Brenner RJ. Lesions entirely removed during stereotactic biopsy: preoperative localization on the basis of mammographic landmarks and feasibility of freehand technique--initial experience. Radiology 2000; 214:585-90. [PMID: 10671616 DOI: 10.1148/radiology.214.2.r00ja18585] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Seven patients with mammographic lesions entirely removed at percutaneous core needle biopsy that required wider excision underwent freehand localization of the site of the prior lesion with orthogonal and reproducible mammographic landmarks to guide needle placement. Successful excision was accomplished in all cases, as evidenced by similar histopathologic findings, fibrin bands or collagen, and core needle biopsy tract at microscopy.
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MESH Headings
- Aged
- Biopsy, Needle/instrumentation
- Biopsy, Needle/methods
- Breast/pathology
- Breast Neoplasms/diagnostic imaging
- Breast Neoplasms/pathology
- Breast Neoplasms/surgery
- Carcinoma in Situ/diagnostic imaging
- Carcinoma in Situ/pathology
- Carcinoma in Situ/surgery
- Carcinoma, Ductal, Breast/diagnostic imaging
- Carcinoma, Ductal, Breast/pathology
- Carcinoma, Ductal, Breast/surgery
- Collagen
- Coloring Agents
- Feasibility Studies
- Female
- Fibrin
- Follow-Up Studies
- Humans
- Hyperplasia
- Mammography/methods
- Methylene Blue
- Middle Aged
- Needles
- Neoplasm, Residual
- Preoperative Care
- Radiography, Interventional
- Stereotaxic Techniques
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Affiliation(s)
- R J Brenner
- Joyce Eisenberg Keefer Breast Center, John Wayne Cancer Institute, St Johns Health Center, 1328 22nd St, Santa Monica, CA 90404, USA.
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Hayman JA, Hillner BE, Harris JR, Pierce LJ, Weeks JC. Cost-effectiveness of adding an electron-beam boost to tangential radiation therapy in patients with negative margins after conservative surgery for early-stage breast cancer. J Clin Oncol 2000; 18:287-95. [PMID: 10637242 DOI: 10.1200/jco.2000.18.2.287] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE Electron-beam boosts (EBB) are routinely added after conservative surgery and tangential radiation therapy (TRT) for early-stage breast cancer. We performed an incremental cost-utility analysis to evaluate their cost-effectiveness. METHODS A Markov model examined the impact of adding an EBB to TRT from a societal perspective. Outcomes were measured in quality-adjusted life years (QALYs). On the basis of the Lyon trial, the EBB was assumed to reduce local recurrences by approximately 2% at 10 years but to have no impact on survival. Patients' utilities were used to adjust for quality of life. Given the small absolute benefit of the EBB, baseline utilities were assumed to be the same with or without it, an assumption evaluated by Monte Carlo simulation. Direct medical, time, and travel costs were considered. RESULTS Adding the EBB led to an additional cost of $2,008, an increase of 0.0065 QALYs and, therefore, an incremental cost-effectiveness ratio of over $300,000/QALY. In a sensitivity analysis, the ratio was moderately sensitive to the efficacy and cost of the EBB and highly sensitive to patients' utilities for treatment without it. Even if patients do value a small risk reduction, the mean cost-effectiveness ratio estimated by the Monte Carlo simulation remains high, at $70,859/QALY (95% confidence interval, $53,141 to $105,182/QALY). CONCLUSION On the basis of currently available data, the cost-effectiveness ratio for the EBB is well above the commonly cited threshold for cost-effective care ($50,000/QALY). The EBB becomes cost-effective only if patients place an unexpectedly high value on the small absolute reduction in local recurrences achievable with it.
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Affiliation(s)
- J A Hayman
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109-0010, USA.
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Hrung JM, Langlotz CP, Orel SG, Fox KR, Schnall MD, Schwartz JS. Cost-effectiveness of MR imaging and core-needle biopsy in the preoperative work-up of suspicious breast lesions. Radiology 1999; 213:39-49. [PMID: 10540638 DOI: 10.1148/radiology.213.1.r99oc5139] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To assess the clinical and economic consequences of the use of preoperative breast magnetic resonance (MR) imaging and core-needle biopsy (CNB) to avert excisional biopsy (EXB). MATERIALS AND METHODS A decision-analytic Markov model was constructed to compare MR imaging, CNB, and EXB without preoperative testing in a woman with a suspicious breast lesion. Stage-specific cancer prevalence, tumor recurrence, progression rates, and MR imaging and CNB sensitivity and specificity were obtained from the literature. Cost estimates were obtained from the literature and from the Medicare fee schedule. RESULTS EXB without preoperative testing was associated with the greatest quality-adjusted life expectancy, followed by MR imaging and CNB; life expectancies were 17.409, 17.405, and 17.398 years, respectively. EXB resulted in the greatest lifetime treatment cost ($31,438), followed by MR imaging ($29,072) and CNB ($28,573). Results were robust over a wide range of cancer prevalence, stage distribution, tumor progression rates, and procedure and treatment costs. Incremental cost-effectiveness ratios showed that preoperative testing was cost-effective, but the choice between MR imaging and CNB was highly dependent on the accuracy of each test and to patient preferences. CONCLUSION Preoperative testing of most suspicious breast lesions was cost-effective. More precise estimates of MR imaging and CNB test performance characteristics are needed. Until those are available, patient preferences should inform individual decisions regarding preoperative testing.
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Affiliation(s)
- J M Hrung
- School of Medicine, University of Pennsylvania Medical Center, Philadelphia, USA
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Burkhardt JH, Sunshine JH. Core-needle and surgical breast biopsy: comparison of three methods of assessing cost. Radiology 1999; 212:181-8. [PMID: 10405740 DOI: 10.1148/radiology.212.1.r99jl46181] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To compare and evaluate the measures of costs for core-needle and surgical breast biopsies. MATERIALS AND METHODS Three measures of costs were evaluated: (a) input resources, (b) actual payments, and (c) billed charges. A combination of methods were used for data collection from 10 sites enrolled in a large-scale, multiinstitutional, randomized controlled clinical trial. RESULTS Input resource cost data (42 core-needle and eight surgical biopsies) were the most difficult to obtain. Actual payments and billed charges data collection (32 core-needle and 44 surgical biopsies) was hampered by the difficulty of obtaining data from all providers involved in the procedures. Average direct input resource costs for surgical biopsy (including needle localization) were almost three times as high as those for core-needle biopsy ($698 vs $243). Actual payments ($2,398 vs $799) and billed charges ($3,764 vs $1,496) for surgical biopsy averaged two and a half to three times higher than those for core biopsy (P < .001). CONCLUSION There was remarkable consistency in relative costs. Input resource costs were much more difficult to obtain than were either actual payments or billed charges. However, input resource costs present a more reliable indication of the actual costs of a procedure than do the other measures. Given the difficulty in obtaining input resource costs, analyses by using actual payments may be preferred.
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Affiliation(s)
- J H Burkhardt
- Research Department, American College of Radiology, Reston, VA 20191-4397, USA
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Tran DQ, Wilkerson DK, Namm J, Zeis MA, Cottone FJ. Needle-localized Breast Biopsy for Mammographic Abnormalities: A Community Hospital Experience. Am Surg 1999. [DOI: 10.1177/000313489906500321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Increased awareness of benefits of early detection of breast cancer has resulted in increased numbers of screening mammographies and breast biopsies for nonpalpable lesions. Tertiary hospital studies have demonstrated positive biopsy rates from abnormal mammographic findings at 18 to 32 per cent. We examined the effectiveness of needle biopsy for nonpalpable radiographic abnormalities in our community hospital. We reviewed 167 records of patients biopsied over a 2-year period. Mammographic assessment, biopsy, and pathological assessment were performed using accepted methods. Malignancy was detected in 34 of 167 biopsies (20%). The biopsy yield rate was highest for mammographic findings of spiculated or stellate masses (75%, P < 0.01). Most biopsies (83%) were performed because of mammographic findings of microcalcifications or circumscribed enlarging masses/nodular developing densities for a positive biopsy yield rate of 16 per cent. Rates were higher in patients with personal (44%) or family history (30%) of breast cancer and in postmenopausal women (30%). These results demonstrate that 1) factors such as age, personal or family history of breast cancer, and certain mammographic features of breast lesions are associated with high biopsy yield rates, and 2) the biopsy yield rate in our community setting is comparable to tertiary hospital experience.
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Affiliation(s)
| | | | - Joel Namm
- Departments of Radiology, St. Francis Medical Center, Trenton, New Jersey
| | - Margaret A. Zeis
- Departments of Surgery, St. Francis Medical Center, Trenton, New Jersey
| | - F. John Cottone
- Departments of Surgery, St. Francis Medical Center, Trenton, New Jersey
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Lawrence WF, Liang W, Mandelblatt JS, Gold KF, Freedman M, Ascher SM, Trock BJ, Chang P. Serendipity in diagnostic imaging: magnetic resonance imaging of the breast. J Natl Cancer Inst 1998; 90:1792-800. [PMID: 9839519 DOI: 10.1093/jnci/90.23.1792] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Magnetic resonance imaging (MRI) of the breast has been proposed as a noninvasive diagnostic test for evaluation of suspicious ("index") lesions noted on mammography and/or clinical breast examination (CBE). However, women may have incidental ("serendipitous") lesions detected by MRI that are not found on mammography or CBE. To understand better whether or not biopsy procedures should be performed to evaluate serendipitous lesions, we estimated the breast cancer risk for women with this type of lesion. METHODS A decision analysis model was used to estimate the positive predictive value (i.e., the chance that a woman with a serendipitous lesion has cancer) of MRI for serendipitous lesions in women who had an abnormal mammogram and/or CBE suspicious for cancer (where a biopsy procedure is recommended). We restricted the analysis to data from women whose index lesions were noncancerous and used meta-analysis of published medical literature to determine the likelihood ratios (measures of how test results change the probability of having cancer) for MRI and the combination of CBE and mammography. The positive predictive value of MRI was calculated using the U.S. population prevalence of cancer (derived from registry data) and the likelihood ratios of the diagnostic tests. RESULTS Under a wide variety of assumptions, the positive predictive value of MRI was extremely low for serendipitous lesions. For instance, assuming sensitivity and specificity values for MRI of 95.6% and 68.6%, respectively, approximately four of 1000 55- to 59-year-old women with serendipitous lesions would be expected to have cancer (positive predictive value = 0.44%, 95% confidence interval = 0.24%-0.67%). CONCLUSION In women with a suspicious lesion discovered by mammography and/or CBE that is found to be benign, serendipitous breast lesions detected by MRI are extremely unlikely to represent invasive breast cancer. Immediate biopsy of such serendipitous lesions may, therefore, not be required.
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Affiliation(s)
- W F Lawrence
- Cancer Clinical and Economic Outcomes Core, Lombardi Cancer Center, Georgetown University Medical Center, Washington, DC 20007, USA.
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27
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Affiliation(s)
- M W Nields
- Fischer Imaging Corporation, Denver CO 80241-3120, USA
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Pisano ED, Braeuning MP, Cance W. Advanced breast biopsy instrumentation: a critique. Acad Radiol 1998; 5:513-5; discussion 516. [PMID: 9653469 DOI: 10.1016/s1076-6332(98)80194-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- E D Pisano
- Department of Radiology, University of North Carolina at Chapel Hill, USA
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Brenner RJ, Sickles EA. Surveillance mammography and stereotactic core breast biopsy for probably benign lesions: a cost comparison analysis. Acad Radiol 1997; 4:419-25. [PMID: 9189199 DOI: 10.1016/s1076-6332(97)80048-7] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
RATIONALE AND OBJECTIVES The authors compared the economic effect of stereotactic core needle biopsy (CNB) with that of short-term unilateral surveillance mammography in the management of probably benign breast lesions detected during routine screening mammography. METHODS Published data with regard to the cost of stereotactic CNB and unilateral mammography were applied to 3,184 patients who underwent surveillance mammography; including 161 patients who underwent biopsy. Costs of immediate tissue diagnosis were compared with costs of surveillance with use of ratios of published reimbursement scales to minimize geographic variations. Sensitivity analyses were applied to this ratio. RESULTS The cost of managing probably benign breast lesions with surveillance mammography was $3,307,575 less than if all lesions had been managed with CNB. The ratio of the cost of CNB to the cost of surveillance mammography was 8:1. This ratio is more sensitive to the frequency of use of CNB than to reimbursement schedules. CONCLUSION With similar false-negative rates, CNB is more costly than surveillance and has a negative effect in the management of probably benign breast lesions, unless interval change during surveillance prompts tissue diagnosis.
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Affiliation(s)
- R J Brenner
- Eiaenberg Keafer Breast Center, John Wayne Cancer Institute, St Johns Hospital and Health Center, Santa Monica, CA 90404, USA
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