in 2011, the U.S. Food and Drug Administration approved the first digital breast tomosynthesis (DBT) unit for use in the United States.1
That same year, PinnacleHealth System in Harrisburg, Pennsylvania, installed a single tomosynthesis unit at one diagnostic site and began monitoring the results of using the new technology. The data revealed that tomosynthesis demonstrated a definite improvement in cancer detection. In 2012, a local physician-owned outpatient radiology center merged with PinnacleHealth System, increasing its patient base. As a result, the mammography program grew to 7 diagnostic and 7 screening sites. Because of the sudden growth of the program, and the apparent benefits of DBT, the organization increased its investment in the technology and purchased 3 additional tomosynthesis units, placing them at 3 diagnostic sites, giving PinnacleHealth System a total of 4 sites capable of performing DBT. These sites were the busiest and could accomodate screening and diagnostic examinations using both full-field digital mammography (FFDM) and DBT. Staff began to track tomosynthesis data in earnest, monitoring both FFDM and DBT to compare the results of screening studies, with the goal of demonstrating the advantages of this technology and the benefit to patients. Methods Two groups of radiologists interpret mammography studies for the health system, and each group has different methods for reading screening mammograms. One group provides immediate interpretations and gives patients their results before they leave the facility. The other group performs batch readings of screening mammograms the next day for both FFDM and DBT. The patients at those sites receive a call the next day as well as a results letter in the mail. PinnacleHealth System uses a screening protocol for patients receiving DBT, which includes patients:
■ Having their first mammogram.
■ With heterogeneously or extremely dense breast tissue.
■ With a personal history of breast cancer.
■ Who ask for DBT.
At the time, Current Procedural Terminology codes for DBT were not available, so technologists documented the patients who had mammograms performed with tomosynthesis by entering the term tomo into the patient’s online history form. The radiology information
system manager provided a report of all patients who had tomosynthesis performed. The mammography supervisors manually counted the number of screening and diagnostic studies with a Breast Imaging-Reporting and Data System (BI-RADS) result of 0 from these
reports. They subtracted those totals from the total of screening and diagnostic BI-RADS 0 results on the conventional mammography reports to determine the final numbers for FFDM and DBT studies. The BI-RADS results 4 and 5 reports were reviewed to determine
whether the initial screening mammogram was DBT or FFDM, and whether biopsy results were positive or negative. The positive result data included both invasive cancers and ductal carcinoma in situ. This information was entered into a spreadsheet created for each facility,
and the individual facility data was combined into system-wide results. The results revealed the value DBT brings to patients. Results
The standard recall percentage of patients called back for additional views after screening mammograms, as reported by the Breast Cancer Surveillance Consortium, is 9.9%2 , and all mammography programs strive to be at or below this benchmark. PinnacleHealth System data showed a system-wide recall rate of 9.4% for FFDM. The DBT recall rate was 7.3%, almost 25% lower than the FFDM recall rate (see Figure 1). For FFDM screening examinations at these sites, 2427 patient recalls were documented. Using DBT on all screening patients at the diagnostic sites could have saved an additional 607 patients the anxiety of a recall. In terms of financial savings, assuming a unilateral mammogram costs $200, using DBT would reflect a total savings of $122 000 per year. For providers considering moving to an Accountable Care Organization, these numbers are important. The cancer detection rates for PinnacleHealth System were compared with the national benchmark as determined by the Breast Cancer Surveillance Consortium, which reports 4.3 cancers found for every 1000 screening mammograms.3 When reviewing the system-wide data for FFDM, the cancer detection rate was already above the benchmark at 4.8 per 1000 screenings. The rate for DBT was 7.4 cancers per 1000 screenings, a 65% increase in cancer detection using DBT when compared with FFDM (see Figure 2). These results indicated that using DBT at all screening sites for all screening patients could save lives and save the system, insurance companies, and patients thousands of dollars in health care costs by providing early detection and less costly treatment.
Discussion
Because the patient base from one group is new to DBT, the cancer detection rates could be higher during the first year of implementation than in subsequent years. Further tracking i
ใน 2011 สหรัฐอเมริกาอาหารและยาอนุมัติ tomosynthesis (DBT) หน่วยแรกของเต้านมแบบดิจิตอลเพื่อใช้ในการ States.1 สหในปีเดียวกัน ระบบ PinnacleHealth ในแฮรริสเบิร์ก เพนซิลวาเนีย ติดตั้งเครื่อง tomosynthesis เดียวที่วินิจฉัยหนึ่ง และเริ่มตรวจสอบผลลัพธ์ของการใช้เทคโนโลยีใหม่ ข้อมูลเปิดเผยว่า tomosynthesis แสดงการปรับปรุงที่ชัดเจนในการตรวจหามะเร็ง ใน 2012 ศูนย์รังสีวิทยาการผู้ป่วยนอกของแพทย์ท้องถิ่นผสานกับระบบ PinnacleHealth เพิ่มฐานของผู้ป่วย เป็นผล โปรแกรมเห็นเติบโตไซต์คัดกรองวินิจฉัย และ 7 7 เนื่องจากการเติบโตอย่างฉับพลันของโปรแกรม และผลประโยชน์ที่ชัดเจนของ DBT องค์กรเพิ่มขึ้นการลงทุนเทคโนโลยี และซื้อ 3 tomosynthesis เพิ่มเติมหน่วย วางพวกเขาในเว็บไซต์วินิจฉัย 3 ให้ระบบ PinnacleHealth จำนวน 4 เว็บไซต์สามารถทำการฝากเงิน เว็บไซต์เหล่านี้ถูกสุด และสามารถรองรับการตรวจกรอง และวินิจฉัยการตรวจโดยใช้ทั้งสองฟิลด์เต็มเห็น (FFDM) และฝากเงิน พนักงานเริ่มติดตามข้อมูล tomosynthesis อย่างจริงจัง การตรวจสอบทั้ง FFDM และฝากเงินเพื่อเปรียบเทียบผลการศึกษาตรวจ มีเป้าหมายแสดงให้เห็นถึงข้อดีของเทคโนโลยีนี้และประโยชน์กับผู้ป่วย กลุ่มสองวิธีของ radiologists ตีเห็นศึกษาระบบสุขภาพ และแต่ละกลุ่มมีวิธีการอ่านตรวจอยู่ กลุ่มหนึ่งให้ตีความได้ทันที และให้ผู้ป่วยผลของพวกเขาก่อนจะออกจากสถาน กลุ่มทำการอ่านค่าชุดคัดกรองอยู่ในวันถัดไปสำหรับ FFDM และฝากเงิน ผู้ป่วยที่ไซต์เหล่านั้นได้รับสายในวันถัดไปเป็นผลลัพธ์ตัวอักษรในจดหมาย ระบบ PinnacleHealth ใช้โพรโทคอคัดกรองผู้ป่วยที่ได้รับฝากเงิน ซึ่งรวมถึงผู้ป่วย:■ Having their first mammogram.■ With heterogeneously or extremely dense breast tissue.■ With a personal history of breast cancer.■ Who ask for DBT.At the time, Current Procedural Terminology codes for DBT were not available, so technologists documented the patients who had mammograms performed with tomosynthesis by entering the term tomo into the patient’s online history form. The radiology informationsystem manager provided a report of all patients who had tomosynthesis performed. The mammography supervisors manually counted the number of screening and diagnostic studies with a Breast Imaging-Reporting and Data System (BI-RADS) result of 0 from thesereports. They subtracted those totals from the total of screening and diagnostic BI-RADS 0 results on the conventional mammography reports to determine the final numbers for FFDM and DBT studies. The BI-RADS results 4 and 5 reports were reviewed to determinewhether the initial screening mammogram was DBT or FFDM, and whether biopsy results were positive or negative. The positive result data included both invasive cancers and ductal carcinoma in situ. This information was entered into a spreadsheet created for each facility,and the individual facility data was combined into system-wide results. The results revealed the value DBT brings to patients. ResultsThe standard recall percentage of patients called back for additional views after screening mammograms, as reported by the Breast Cancer Surveillance Consortium, is 9.9%2 , and all mammography programs strive to be at or below this benchmark. PinnacleHealth System data showed a system-wide recall rate of 9.4% for FFDM. The DBT recall rate was 7.3%, almost 25% lower than the FFDM recall rate (see Figure 1). For FFDM screening examinations at these sites, 2427 patient recalls were documented. Using DBT on all screening patients at the diagnostic sites could have saved an additional 607 patients the anxiety of a recall. In terms of financial savings, assuming a unilateral mammogram costs $200, using DBT would reflect a total savings of $122 000 per year. For providers considering moving to an Accountable Care Organization, these numbers are important. The cancer detection rates for PinnacleHealth System were compared with the national benchmark as determined by the Breast Cancer Surveillance Consortium, which reports 4.3 cancers found for every 1000 screening mammograms.3 When reviewing the system-wide data for FFDM, the cancer detection rate was already above the benchmark at 4.8 per 1000 screenings. The rate for DBT was 7.4 cancers per 1000 screenings, a 65% increase in cancer detection using DBT when compared with FFDM (see Figure 2). These results indicated that using DBT at all screening sites for all screening patients could save lives and save the system, insurance companies, and patients thousands of dollars in health care costs by providing early detection and less costly treatment.DiscussionBecause the patient base from one group is new to DBT, the cancer detection rates could be higher during the first year of implementation than in subsequent years. Further tracking i
การแปล กรุณารอสักครู่..