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1.
Ann Surg Oncol ; 30(10): 6070-6078, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37528305

ABSTRACT

BACKGROUND: The literature lacks well-established benchmarks for expected time between screening mammogram to diagnostic imaging and then to core needle breast biopsy. METHODS: Timeliness of diagnostic imaging workup was evaluated using aggregate data from 2005 to 2019 submitted to The National Quality Measures for Breast Centers (NQMBC). RESULTS: A total of 419 breast centers submitted data for 1,805,515 patients on the time from screening mammogram to diagnostic imaging. The overall time was 7 days with 75th, 25th, and 10th percentile values of 5, 10, and 13.5 days, respectively. The average time in business days decreased from 9.1 to 7.1 days (p < 0.001) over the study period with the greatest gains in poorest-performing quartiles. Screening centers and centers in the Midwest had significantly shorter time to diagnostic imaging. Time from diagnostic imaging to core needle biopsy was submitted by 406 facilities representing 386,077 patients. The average time was 6 business days, with 75th, 25th, and 10th percentiles of 4, 9, and 13.7 days, respectively. Time to biopsy improved from a mean of 9.0 to 6.3 days (p < 0.001) with the most improvement in the poorest-performing quartiles. Screening centers, centers in the Midwest, and centers in metropolitan areas had significantly shorter time to biopsy. CONCLUSIONS: In a robust dataset, the time from screening mammogram to diagnostic imaging and from diagnostic imaging to biopsy decreased from 2005 to 2019. On average, patients could expect to have diagnostic imaging and biopsies within 1 week of abnormal results. Monitoring and comparing performance with reported data may improve quality in breast care.


Subject(s)
Breast Neoplasms , Humans , Female , Breast Neoplasms/diagnostic imaging , Breast Neoplasms/pathology , Breast/pathology , Mammography , Biopsy/methods , Quality of Health Care
2.
Ann Surg Oncol ; 28(5): 2529-2542, 2021 May.
Article in English | MEDLINE | ID: mdl-33221977

ABSTRACT

BACKGROUND: Accurate identification of the tumor bed after breast-conserving surgery (BCS) ensures appropriate radiation to the tumor bed while minimizing normal tissue exposure. The BioZorb® three-dimensional (3D) bioabsorbable tissue marker provides a reliable target for radiation therapy (RT) planning and follow-up evaluation while serving as a scaffold to maintain breast contour. METHODS: After informed consent, 818 patients (826 breasts) implanted with the BioZorb® at 14 U.S. sites were enrolled in a national registry. All the patients were prospectively followed with the BioZorb® implant after BCS. The data collected at 3, 6, 12, and 24 months included all demographics, treatment parameters, and provider/patient-assessed cosmesis. RESULTS: The median follow-up period was 18.2 months (range, 0.2-53.4 months). The 30-day breast infection rate was 0.5 % of the patients (n = 4), and re-excision was performed for 8.1 % of the patients (n = 66), whereas 2.6 % of the patients (n = 21) underwent mastectomy. Two patients (0.2 %) had local recurrence. The patient-reported cosmetic outcomes at 6, 12, and 24 months were rated as good-to-excellent by 92.4 %, 90.6 %, and 87.3 % of the patients, respectively and similarly by the surgeons. The radiation oncologists reported planning of target volume (PTV) reduction for 46.2 % of the patients receiving radiation boost, with PTV reduction most commonly estimated at 30 %. CONCLUSIONS: This report describes the first large multicenter study of 818 patients implanted with the BioZorb® tissue marker during BCS. Radiation oncologists found that the device yielded reduced PTVs and that both the patients and the surgeons reported good-to-excellent long-term cosmetic outcomes, with low adverse effects. The BioZorb® 3D tissue marker is a safe adjunct to BCS and may add benefits for both surgeons and radiation oncologists.


Subject(s)
Breast Neoplasms , Absorbable Implants , Breast Neoplasms/radiotherapy , Breast Neoplasms/surgery , Humans , Mastectomy , Mastectomy, Segmental , Neoplasm Recurrence, Local/radiotherapy , Patient Reported Outcome Measures
4.
Curr Oncol Rep ; 21(12): 111, 2019 12 14.
Article in English | MEDLINE | ID: mdl-31838584

ABSTRACT

PURPOSE OF REVIEW: The goals of surgery for breast cancer have remained the same over the years, to eliminate breast cancer from the breast with the least degree of deformity. With the current expectation of long-term survival after breast cancer treatment, more attention has turned to the cosmetic result of the surgical treatment. Whether lumpectomy or mastectomy, the need for aesthetic improvement was recognized by surgeons both in and outside the USA. RECENT FINDINGS: Oncoplastic surgery combines the skills of the cancer surgeon with those of the plastic surgeon. Sometimes, this means a team approach with a breast surgeon and a plastic surgeon both performing their mutual skills for the patient. Other times, the properly trained breast surgeon may perform some of the plastic techniques at the time of cancer surgery. Breast surgeons are rapidly gaining the ability to improve the post-cancer treatment appearance. To simplify the classification of oncoplastic techniques, we have used lower level, upper level, and highest level. The assignment of techniques to levels is based on both the technique and the surgeon's training and experience. Much data has accumulated demonstrating the safety and efficacy of the "aesthetic cancer cure." We describe the development of oncoplastic surgery, the techniques available, matching the right candidate with the right technique, and some comments about the future. It is clear from both clinical benefit and patient satisfaction that oncoplastic breast cancer procedures are here to stay. Plastic surgeons will likely focus on the upper- and highest-level procedures while breast/general surgeons will learn lower-level procedures and some of upper-level procedures as needed by their locale. Opportunities to educate breast/general surgeons in these techniques will continue to increase over the next several years. Formal education in oncoplastic surgery during breast fellowships will be necessary to catch up with the rest of the surgical world outside the USA.


Subject(s)
Breast Neoplasms/surgery , Mammaplasty/methods , Mastectomy, Segmental/methods , Mastectomy/methods , Practice Patterns, Physicians'/statistics & numerical data , Breast Neoplasms/pathology , Female , Humans
5.
Ann Surg Oncol ; 26(5): 1202-1211, 2019 May.
Article in English | MEDLINE | ID: mdl-30684159

ABSTRACT

PURPOSE: This study was designed to determine whether accreditation by the National Accreditation Program for Breast Centers (NAPBC) is associated with improved performance on six breast quality measures pertaining to adjuvant treatment, needle/core biopsy, and breast conservation therapy rates at Commission on Cancer (CoC) centers. METHODS: National Cancer Database 2015 data were retrospectively reviewed to compare patients treated at CoC centers with and without NAPBC accreditation for compliance on six breast cancer quality measures. Mixed effects modeling determined performance on the quality measures adjusting for patient, tumor, and facility factors. RESULTS: Of 1308 CoC facilities, 484 (37%) were NAPBC-accredited and 111,547 patients (48%) were treated at NAPBC centers. More than 80% of patients treated at both NAPBC and non-NAPBC centers received care in compliance with breast quality measures. NAPBC centers achieved significantly higher performance on four of the five quality measures than non-NAPBC centers at the patient level and on five of six measures at the facility level. For two measures, needle/core biopsy before surgical treatment of breast cancer and breast conservation therapy rate of 50%, NAPBC centers were twice as likely as non-NAPBC centers to perform at the level expected by the CoC (respectively odds ratio [OR] 1.96, 95% confidence interval [CI] 1.85-2.08, p < 0.0001; and OR 2.05, 95% CI 1.94-2.15, p < 0.0001). CONCLUSIONS: While NAPBC accreditation at CoC centers is associated with higher performance on breast quality measures, the majority of patients at all centers receive guideline-concordant care. Future studies will determine whether higher performance translates into improved oncologic and patient-reported outcomes.


Subject(s)
Accreditation , Breast Neoplasms/therapy , Cancer Care Facilities/standards , Practice Guidelines as Topic/standards , Quality Indicators, Health Care/standards , Female , Humans , Prognosis , Quality Control , Retrospective Studies
6.
J Am Coll Surg ; 224(3): 236-244, 2017 Mar.
Article in English | MEDLINE | ID: mdl-27993697

ABSTRACT

BACKGROUND: The National Accreditation Program for Breast Centers (NAPBC) was established in 2008 by the American College of Surgeons as a quality-improvement program for patients with breast disease. An NAPBC quality measure states post-mastectomy patients with ≥4 positive lymph nodes should receive lymph node radiation therapy (PMRT). Our objective was to examine how NAPBC accreditation has affected compliance with this quality measure. STUDY DESIGN: Women who underwent mastectomy at either an NAPBC-accredited center or a Commission on Cancer-only accredited hospital were identified (2006 to 2013) in the National Cancer Data Base. The NAPBC centers accredited from 2009 to 2011 were included in the analysis. Patients were nested within centers using a mixed effects model to identify PMRT rates at each center before and after accreditation, adjusting for patient and tumor characteristics. RESULTS: Of 34,752 patients from 477 NAPBC-accredited centers and 958 Commission on Cancer-only accredited hospitals who underwent mastectomy with ≥4 positive lymph nodes, 21,638 patients received PMRT during the study period (62.3%). The NAPBC centers yielded a significantly higher rate of PMRT than Commission on Cancer hospitals (66.0% vs 59.2%; p < 0.001). For each year of accreditation (2009 to 2011), centers had significantly higher rates of radiation in the accreditation year compared with the year before accreditation (p < 0.001). Within those centers, the rate of radiation increased post-accreditation in each accreditation year (2009: 62.1% to 71.9%; 2010: 65.5% to 73.2%; 2011: 67.5% to 70.4%). CONCLUSIONS: The NAPBC accreditation is associated with higher PMRT rates and better adherence to the PMRT quality measure. Future studies with more centers and longer follow-up are needed to determine whether this trend continues.


Subject(s)
Accreditation , Breast Neoplasms/radiotherapy , Breast Neoplasms/surgery , Cancer Care Facilities , Guideline Adherence , Mastectomy , Adult , Aged , Aged, 80 and over , Female , Humans , Middle Aged , Practice Guidelines as Topic , Quality Control , United States
8.
J Surg Oncol ; 110(5): 611-5, 2014 Oct.
Article in English | MEDLINE | ID: mdl-25042831

ABSTRACT

The multidisciplinary Commission on Cancer (CoC) and National Accreditation Program for Breast Centers (NAPBC), administered by the American College of Surgeons (ACoS), defines evidence and consensus-based standards, require an operational infrastructure, collect high quality cancer data, and validate compliance with standards through external peer review. A survey of our constituents confirms a high level of agreement that accreditation is regarded as important in improving oncologic outcomes through compliance with standards that include continuous quality improvement.


Subject(s)
Accreditation , Neoplasms/therapy , Humans , Quality Improvement , Societies, Medical , Surgeons , Surveys and Questionnaires , Treatment Outcome , United States
9.
Ann Surg Oncol ; 18(11): 3053-60, 2011 Oct.
Article in English | MEDLINE | ID: mdl-21863365

ABSTRACT

Many studies have demonstrated gaps in healthcare quality for all medical and surgical specialties including breast surgical care. How to optimally measure and improve quality has generated debate at the local, state, and national level. Attempts to judge medical performance by private companies using non-risk-adjusted administrative databases may not be accurate and may unfairly penalize surgical care. An overview of concepts to measure and improve quality of breast cancer care is presented with specific examples relevant to breast surgeons. Breast surgeons and their professional organizations need to take ownership of quality measure programs because others will surely do so if we do not. Participation in one or more of these programs is beneficial because peer performance comparison allows identification of potential areas for individual or institutional improvement and demonstrates the commitment of breast surgeons to quality improvement. This commitment may gain even greater importance if trends continue toward performance-based physician payment, patient steerage, licensure, and board certification.


Subject(s)
Breast Neoplasms/surgery , Quality of Health Care , Female , Humans , Prognosis
12.
Expert Rev Anticancer Ther ; 7(10): 1357-62, 2007 Oct.
Article in English | MEDLINE | ID: mdl-17944561

ABSTRACT

With the emphasis on quality of care spurred by the Institute of Medicine, two breast care quality programs have been developed. The National Accreditation Program for Breast Centers is composed of 13 national organizations interested in setting structural standards for breast care. Accreditation occurs during an on-site survey review of the three types of breast centers every 3 years. A second program uses a web-based set of questions called the National Quality Measurements for Breast Centers established by the National Consortium of Breast Centers. Yearly confidential submission of data allows the centers to compare themselves with like-centers across the country using a real-time results program. These two programs herald a new phase of quality monitoring based on comparisons with other providers of breast care. In this new paradigm, simply being licensed to provide care will not be satisfactory proof of quality of care.


Subject(s)
Accreditation/organization & administration , Breast Neoplasms/therapy , Cancer Care Facilities/standards , Quality Assurance, Health Care/organization & administration , Computer Systems , Evidence-Based Medicine , Female , Guideline Adherence , Humans , Interdisciplinary Communication , Interinstitutional Relations , Internet , Licensure, Hospital , Online Systems , Patient Care Team , Program Evaluation , Quality Indicators, Health Care , Societies, Medical , Surveys and Questionnaires , United States
13.
Am J Surg ; 194(4): 515-7, 2007 Oct.
Article in English | MEDLINE | ID: mdl-17826069

ABSTRACT

BACKGROUND: Despite advances in treatment and decreases in mortality, high-quality breast care is distributed unevenly across the country. Efforts to measure and monitor the quality of breast care have been initiated for breast centers and breast surgeons. METHODS: The current efforts to define measures of breast care quality were examined. Each program was defined by their quality indicators, ease of use, and potential problems. RESULTS: Three new innovative programs were identified: (1) the National Accreditation Program for Breast Centers uses an on-site survey of the structural components of breast center care to offer breast center accreditation; (2) the National Quality Measures for Breast Care (National Consortium of Breast Centers, Inc, Warsaw, IN) uses a confidential online questionnaire of process indicators to offer quality breast center certification; and (3) the American Society of Breast Surgeons program uses a confidential online questionnaire to validate breast surgeon quality. CONCLUSIONS: Three new programs to validate quality breast care are available in 2007. One or more of these programs likely will be used to validate increased payments for quality care. Breast centers and breast surgeons are advised to consider participation in these programs.


Subject(s)
Breast Neoplasms/surgery , Program Evaluation , Quality of Health Care , Humans , United States
14.
Ann Surg Oncol ; 14(4): 1478-85, 2007 Apr.
Article in English | MEDLINE | ID: mdl-17235716

ABSTRACT

INTRODUCTION: Specimen mammography during image guided breast surgery is a daily occurrence. The process of specimen travel, imaging and reporting may take 20-30 minutes. An intraoperative method to obtain digital specimen mammograms may expedite the process. We compared intraoperative digital specimen mammography (IDSM) as well as standard specimen mammography (SSM) on 121 consecutive image guided lumpectomies. METHODS: Each lumpectomy specimen had IDSM obtained followed by travel to radiology for SSM. Surgical decisions were based on all imaging obtained. Data included 1) the ability of each imaging method to identify the target lesion, 2) degree of concordance of surgical interpretation of IDSM compared to radiologist interpretation of SSM, 3) the time required from lumpectomy to surgical review of images from each method, and 4) potential operative time savings. RESULTS: Intraoperative digital specimen mammography (IDSM) was equally as accurate as standard x-ray film specimen mammography. There was no significant difference between 1) the frequency of identification of the target lesion by surgeon or radiologist, 2) lack of identification of any lesion, or 3) frequency of involved margins using imaging criteria. However, there was a marked difference in 1) the time needed to obtain images ready to read, 2) the ability to re-excise tissue promptly, and 3) the overall operating room time with an average decrease of 19 minutes. CONCLUSIONS: Intraoperative digital specimen mammography (IDSM) was equally accurate as SSM obtained in this study. Use of this new technology allows surgeons to quickly view specimen images which translate into shorter more efficient operations.


Subject(s)
Breast Diseases/diagnostic imaging , Computer Systems , Mammography/methods , Radiographic Image Enhancement , Breast Diseases/surgery , Female , Humans , Intraoperative Care , Mastectomy, Segmental , Reproducibility of Results , Time Factors
15.
Am J Surg ; 192(4): 444-9, 2006 Oct.
Article in English | MEDLINE | ID: mdl-16978946

ABSTRACT

BACKGROUND: Documentation of the clinical breast examination (CBE) has consisted of simple hand-drawings and stick figures without a common lexicon. There is a need for a device that can accurately depict the CBE in digital format while being objective, reproducible over time, and useable in the electronic medical record. This new device is called palpation imaging (PI). METHODS: We examined 110 patients with a complaint of a breast mass using PI. This laptop-sized device creates a real-time digital display of the palpable area in both video and still formats. The size, hardness, shape, homogeneity, and mass location may be extracted from the image. RESULTS: Of those with a true mass, PI identified the mass in 94% while physical examination identified 86%. The positive predictive value (PPV) for breast cancer using PI was 94% and 78% for physical examination. A survey of primary care physicians revealed the inclusion of the PI record in a consultation note implied competence, experience, and skill by the surgeon. CONCLUSIONS: PI documented the CBE in a timely, efficient, and accurate manner. A reproducible record allows objective review by multiple examiners at varied times. Continued work will optimize examination methods.


Subject(s)
Breast Diseases/pathology , Diagnostic Imaging/instrumentation , Image Processing, Computer-Assisted/instrumentation , Palpation/instrumentation , Equipment Design , Female , Humans , Medical Records Systems, Computerized , Predictive Value of Tests , Reproducibility of Results , Transducers
16.
Am J Surg ; 192(4): 513-5, 2006 Oct.
Article in English | MEDLINE | ID: mdl-16978963

ABSTRACT

Specimen mammograms are often a time-consuming event for image-guided surgery. The use of an intraoperative imaging device may improve the speed of surgery, but comparison must be made to ensure accuracy is maintained. One hundred fifty consecutive image localized patients underwent both intraoperative digital specimen mammogram (in the operating room) and standard specimen mammogram (in radiology). Intraoperative mammograms as read by breast surgeons were as accurate as standard films while saving an average of 19 minutes per operative procedure. Intraoperative digital specimen mammograms can accurately identify target lesions while saving operating room time.


Subject(s)
Breast Diseases/diagnostic imaging , Breast Diseases/surgery , Computer Systems , Intraoperative Care , Mammography/methods , Radiographic Image Enhancement , Female , Humans , Mastectomy, Segmental , Reproducibility of Results , Time Factors
17.
Breast J ; 11(5): 344-50, 2005.
Article in English | MEDLINE | ID: mdl-16174156

ABSTRACT

Approximately 10% of women will experience a breast fibroadenoma in their lifetime. Cryoablation is a new treatment that combines the better attributes of the current standards: surveillance and surgery. It is a minimally invasive office-based procedure that is administered without the use of general anesthesia, involving minimal patient discomfort and little to no scarring. This work aimed to establish the long-term (2-3 years) efficacy, safety, and satisfaction of the procedure, as well as the impact of cryoablation on mammogram and ultrasound images. Thirty-seven treated fibroadenomas were available for assessment with an average follow-up period of 2.6 years. Of the original 84% that were palpable prior to treatment, only 16% remained palpable to the patient as of this writing. Of those fibroadenomas that were initially < or = 2.0 cm in size, only 6% remained palpable. A median volume reduction of 99% was observed with ultrasound. Ninety-seven percent of patients and 100% of physicians were satisfied with the long-term treatment results. Mammograms and ultrasounds showed cryoablation produced no artifact that would adversely affect interpretation. Cryoablation for breast fibroadenomas has previously been reported as safe and effective both acutely and at the 1-year follow-up mark, and thus has been implemented as a treatment option. At long-term follow-up, cryoablation as a primary therapy for breast fibroadenomas demonstrates progressive resolution of the treated area, durable safety, and excellent patient and physician satisfaction. The treatment is performed in an office setting rather than an operating room, resulting in a cost-effective and patient-friendly procedure. Cryoablation should be considered a preferred option for those patients desiring definitive therapy for their fibroadenomas without surgical intervention.


Subject(s)
Breast Neoplasms/diagnosis , Breast Neoplasms/surgery , Cryosurgery/methods , Fibroadenoma/diagnosis , Fibroadenoma/surgery , Adolescent , Adult , Aged , Ambulatory Surgical Procedures , Cryosurgery/adverse effects , Female , Follow-Up Studies , Humans , Mammography/methods , Middle Aged , Neoplasm Staging , Patient Satisfaction , Prospective Studies , Risk Assessment , Time Factors , Treatment Outcome , Ultrasonography, Mammary/methods
18.
Am J Surg ; 188(4): 340-8, 2004 Oct.
Article in English | MEDLINE | ID: mdl-15474424

ABSTRACT

OBJECTIVE: Eighty percent of all breast biopsies reveal benign findings. The most common benign tumor is a fibroadenoma. Despite their benign nature, many women eventually choose to have their bothersome lumps surgically removed. We report the use of cryoablation to treat these benign breast lesions with minimum 12-month follow-up. METHODS: After receiving Institutional Review Board approval, a prospective nonrandomized trial was initiated in June 2000. Ultrasound-guided cryoablation of core biopsy-proven benign fibroadenomas, other benign breast nodules, or nodular fibrocystic change was performed on 78 lesions in 63 patients. Eighty-five percent of lesions treated were benign fibroadenomas. The cryoablation procedure consisted of a double freeze-thaw cycle that lasted between 6 and 30 minutes and was performed most often in an office setting. Each patient was serially evaluated for treatment efficacy, complications, and patient satisfaction. RESULTS: Sixty-four of 78 lesions (mean size 2.0 cm [range 0.8 to 4.2]) were followed-up for at least 12 months after cryoablation per protocol, which included 53 fibroadenomas. At 1 year, ultrasound tumor volume resorption was 88.3% overall (87.3% for fibroadenomas), and 73% of the entire group became nonpalpable to both clinician and patient (75% for fibroadenomas). Two of the fibroadenoma patients had their palpable residual nodule excised, both revealing necrotic debris and no viable tumor in the treated volume. Serial mammograms showed resorption of the lesion leaving minimal residual density without calcifications. Cosmesis was excellent with only a small scar remaining at the probe insertion site. There was no report of visual or palpable volumetric deficit. Patient satisfaction was good to excellent in 92% of cases. CONCLUSIONS: Cryoablation was successful in treating core biopsy-proven benign breast lesions in 63 patients. At 12 months, we found gradual resorption of treated tissue with no cosmetic deficit. Ultrasound-guided cryoablation is an effective and safe treatment for benign breast lesions, as seen at 12-month follow-up, and offers an office-based, minimally invasive alternative to surgical excision.


Subject(s)
Breast Neoplasms/surgery , Cryosurgery , Adolescent , Adult , Aged , Female , Follow-Up Studies , Humans , Middle Aged , Prospective Studies , Time Factors
20.
J Am Coll Surg ; 198(6): 914-23, 2004 Jun.
Article in English | MEDLINE | ID: mdl-15194073

ABSTRACT

BACKGROUND: Fibroadenomas comprise between 30% and 50% of all breast biopsies. Despite their benign nature, many women have their fibroadenomas surgically removed. We previously reported on a minimally invasive therapy using cryoablation to treat fibroadenomas. We now report on 12-month followup using this technique. STUDY DESIGN: A prospective, nonrandomized trial was initiated in June 2000 with IRB approval. The Visica Treatment System was used to cryoablate 70 biopsy-proved fibroadenomas in 57 patients using a freeze-thaw-freeze cycle lasting 6 to 30 minutes. Each patient was serially evaluated for safety, efficacy, and satisfaction. RESULTS: Fifty-seven fibroadenomas (mean 2.1 cm, range 0.8 to 4.2 cm) in 47 patients were followed for 12 months. At 1 year, with 89% median tumor volume reduction measured by ultrasonography, 75% of fibroadenomas were nonpalpable. There were no adverse events and only minor complications. Two patients (4%) had their lesions excised after 12 months; pathology revealed no viable fibroadenoma. Serial mammograms showed resorption of the fibroadenoma leaving minimal residual density without calcifications. Cosmesis was excellent with no volume deficit, as no tissue is removed. Ninety-one percent of patients were satisfied at 12 months. CONCLUSIONS: Cryoablation is safe and effective in treating breast fibroadenomas. It offers a nonsurgical, office-based treatment that is well tolerated by patients and accurately monitored with ultrasonographic guidance. At 12 months we found progressive tumor volume reduction and reduced palpability, with no volume deficit, excellent cosmesis, and satisfied patients. Ultrasonography-guided cryoablation is a preferred option for treatment of breast fibroadenomas without open surgery.


Subject(s)
Breast Neoplasms/surgery , Cryosurgery , Fibroadenoma/surgery , Adult , Ambulatory Surgical Procedures , Breast Neoplasms/diagnostic imaging , Cryosurgery/instrumentation , Female , Fibroadenoma/diagnostic imaging , Follow-Up Studies , Humans , Patient Satisfaction , Prospective Studies , Safety , Time Factors , Ultrasonography
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