Breast Cancer Disparity and Outcomes in Underserved Women.

Women in the United States who continue to face obstacles accessing health care are frequently termed an underserved population. Safety-net health care systems play a crucial role in mitigating health disparities and reducing burdens of disease, such as breast cancer, for underserved women. Disparities in health care are driven by various factors, including race and ethnicity, as well as socioeconomic factors that affect education, employment, housing, insurance status, and access to health care. Underserved women are more likely to be uninsured or underinsured throughout their lifetimes. Hence they have greater difficulty gaining access to breast cancer screening and are less likely to undergo supplemental imaging when needed. Therefore, underserved women often experience significant delays in the diagnosis and treatment of breast cancer, leading to higher mortality rates. Addressing disparities requires a multifaceted approach, with formal care coordination to help at-risk women navigate through screening, diagnosis, and treatment. Mobile mammography units and community outreach programs can be leveraged to increase community access and engagement, as well as improve health literacy with educational initiatives. Radiology-community partnerships, comprised of imaging practices partnered with local businesses, faith-based organizations, homeless shelters, and public service departments, are essential to establish culturally competent breast imaging care, with the goal of equitable access to early diagnosis and contemporary treatment. Published under a CC BY 4.0 license. Test Your Knowledge questions are available in the Online Learning Center. See the invited commentary by Leung in this issue.

Imaging Challenges in Diagnosing Triple-Negative Breast Cancer.

Triple-negative breast cancer (TNBC) refers to a heterogeneous group of carcinomas that have more aggressive biologic features, faster growth, and a propensity for early distant metastasis and recurrence compared with other breast cancer subtypes. Due to the aggressiveness and rapid growth of TNBCs, there are specific imaging challenges associated with their timely and accurate diagnosis. TNBCs commonly manifest initially as circumscribed masses and therefore lack the typical features of a primary breast malignancy, such as irregular shape, spiculated margins, and desmoplastic reaction. Given the potential for misinterpretation, review of the multimodality imaging appearances of TNBCs is important for guiding the radiologist in distinguishing TNBCs from benign conditions. Rather than manifesting as a screening-detected cancer, TNBC typically appears clinically as a palpable area of concern that most commonly corresponds to a discrete mass at mammography, US, and MRI. The combination of circumscribed margins and hypoechoic to anechoic echogenicity may lead to TNBC being misinterpreted as a benign fibroadenoma or cyst. Therefore, careful mammographic and sonographic evaluation with US image optimization can help avoid misinterpretation. Radiologists should recognize the characteristics of TNBCs that can mimic benign entities, as well as the subtle features of TNBCs that should raise concern for malignancy and aid in timely and accurate diagnosis. ©RSNA, 2023 Quiz questions for this article are available in the supplemental material.

Performance of a clinical and imaging-based multivariate model as decision support tool to help save unnecessary surgeries for high-risk breast lesions.

PURPOSE: To investigate the performance of an imaging and biopsy parameters-based multivariate model in decreasing unnecessary surgeries for high-risk breast lesions. METHODS: In an IRB-approved study, we retrospectively reviewed all high-risk lesions (HRL) identified at imaging-guided biopsy in our institution between July 1, 2014-July 1, 2017. Lesions were categorized high-risk-I (HR-I = atypical ductal hyperplasia, atypical lobular hyperplasia, lobular carcinoma in situ and atypical papillary lesion) and II (HR-II = Flat epithelial atypia, radial scar, benign papilloma). Patient risk factors, lesion features, detection and biopsy modality, excision and cancer upgrade rates were collected. Reference standard for upgrade was either excision or at least 2-year imaging follow-up. Multiple logistic regression analysis was performed to develop a multivariate model using HRL type, lesion and biopsy needle size for surgical cancer upgrade with performance assessed using ROC analysis. RESULTS: Of 699 HRL in 652 patients, 525(75%) had reference standard available, and 48/525(9.1%) showed cancer at surgical excision. Excision (84.5% vs 51.1%) and upgrade (17.6%vs1.8%) rates were higher in HR-I compared to HR-II (p < 0.01). In HR-I, small needle size < 12G vs ≥ 12G [32.1% vs 13.2%, p < 0.01] and less cores [< 6 vs ≥ 6, 28.6%vs13.7%, p = 0.01] were significantly associated with higher cancer upgrades. Our multivariate model had an AUC = 0.87, saving 28.1% of benign surgeries with 100% sensitivity, based on HRL subtype, lesion size(mm, continuous), needle size (< 12G vs ≥ 12G) and biopsy modality (US vs MRI vs stereotactic) CONCLUSION: Our multivariate model using lesion size, needle size and patient age had a high diagnostic performance in decreasing unnecessary surgeries and shows promise as a decision support tool.

Family Engagement in Pediatric Sickle Cell Disease Visits.

Adults with sickle cell disease (SCD) report problems in relationship building and information exchange during clinic visits. To explore the origin of these communication challenges, we compare communication in pediatric SCD, diabetes, and asthma visits. We collected visit videos and parent surveys from 78 children ages 9-16 years with SCD, asthma, or diabetes. Coders assessed child, parent, and physician utterances reflecting relationship building, information giving, and information gathering. Associations of engagement with type of chronic disease visit were performed with negative binomial regression. Compared to SCD visits, children in diabetes visits spoke 53% more relationship-building utterances (p < .05) and physicians in asthma visits spoke 48% fewer relationship building utterances to the child (p < .01). In diabetes visits, physicians gave almost twice as much information to children and gave 48% less information to parents (both p < .01) compared to SCD visits. Compared to SCD visits, physicians spoke fewer information-gathering utterances to parents in diabetes and asthma visits (85% and 72% respectively, both p < .001). SCD visits reflect less engagement of the children and greater physician effort to gather information from parents. These differences highlight opportunities to enhance engagement as a mechanism for ultimately improving SCD care.

Diffusion-weighted MRI: association between patient characteristics and apparent diffusion coefficients of normal breast fibroglandular tissue at 3 T.

OBJECTIVE: The purpose of this study is to assess associations between patient characteristics and apparent diffusion coefficient (ADC) values of normal breast fibroglandular tissue on diffusion-weighted imaging (DWI) at 3 T. MATERIALS AND METHODS: The retrospective study included 103 women with negative bilateral findings on 3-T breast MRI examinations (BI-RADS category 1). DWI was acquired during clinical breast MRI scans using b = 0 and b = 800 s/mm(2). Mean ADC of normal breast fibroglandular tissue was calculated for each breast using a semiautomated software tool in which parenchyma pixels were selected by interactive thresholding of the b = 0 s/mm(2) image to exclude fat. Intrasubject right- and left-breast ADC values were compared and averaged together to evaluate the association of mean breast ADC with age, mammographic breast density, and background parenchymal enhancement. RESULTS: Overall mean ± SD breast ADC was 1.62 ± 0.30 × 10(-3) mm(2)/s. Intrasubject right- and left-breast ADC measurements were highly correlated (R(2) = 0.89; p < 0.0001). Increased breast density was strongly associated with increased ADC (p ≤ 0.0001). Age and background parenchymal enhancement were not associated with ADC. CONCLUSION: Normal breast parenchymal ADC values increase with mammographic density but are independent of age and background parenchymal enhancement. Because breast malignancies have been shown to have low ADC values, DWI may be particularly valuable in women with dense breasts owing to greater contrast between lesion and normal tissue.

Errors of epinephrine administration during severe allergic-like contrast reactions: lessons learned from a bi-institutional study using high-fidelity simulation testing.

PURPOSE: To determine the most common errors of epinephrine administration during severe allergic-like contrast reaction management using high-fidelity simulation surrogates. MATERIALS AND METHODS: IRB approval and informed consent were obtained for this HIPAA-compliant bi-institutional prospective study of 40 radiology residents, fellows, and faculty who were asked to manage a structured high-fidelity severe allergic-like contrast reaction scenario (i.e., mild hives progressing to mild bronchospasm, then bronchospasm unresponsive to bronchodilators, and finally anaphylactic shock) on an interactive manikin. Intravenous (IV) and intramuscular epinephrine ampules were available to all participants, and the manikin had a functioning intravenous catheter for all scenarios. Video recordings of their performance were reviewed by experts in contrast reaction management, and errors in epinephrine administration were recorded and characterized. RESULTS: No participant (0/40) failed to give indicated epinephrine, but more than half (58% [23/40]) committed an error while doing so. The most common mistake was to administer epinephrine as the first-line treatment for mild bronchospasm (33% [13/40]). Other common errors were to administer IV epinephrine without a subsequent IV saline flush or concomitant IV fluids (25% [10/40]), administer an overdose of epinephrine (8% [3/40]), and administer epinephrine 1:1000 intravenously (8% [3/40]). CONCLUSION: Epinephrine administration errors are common. Many radiologists fail to administer albuterol as the first-line treatment for mild bronchospasm and fail to flush the IV catheter when administering IV epinephrine. High-fidelity contrast reaction scenarios can be used to identify areas for training improvement.

Allergic reactions to iodinated contrast media: premedication considerations for patients at risk.

The objectives of this article are to review allergy-type reactions to iodinated contrast media and the protocols utilized to prevent or reduce the occurrence of these adverse reactions in high-risk patients. We will begin by discussing the types or classifications of the adverse reactions to iodinated contrast media. We will then discuss reaction mechanisms, identify the patients at highest risk for adverse reactions, and clarify common misperceptions about the risk. Finally, we will discuss the actions of the medications used to help reduce or prevent allergy-type reactions to iodinated contrast media, the protocols used to help reduce or prevent contrast reactions in high-risk patients, and the potential side effects of these medications. We will also discuss the high-risk patient who has received premedication due to a prior index reaction and discuss the risk of having a subsequent reaction, termed "breakthrough reaction." Identifying patient at high risk for an "allergy-type" reaction to contrast media is an essential task of the radiologist. Prevention of or reduction of the risk of an adverse reaction is critical to patient safety. If an examination can be performed without contrast in a patient at high risk for an allergy-type reaction, it may be appropriate to avoid contrast. However, there are situations where contrast media is necessary, and the radiologist plays a vital role in preventing or mitigating an allergy-type reaction.

Safety essentials: acute reactions to iodinated contrast media.

The objectives of this article are to review the diagnosis and management of acute nonrenal reactions to iodinated contrast media. We will begin by discussing the types of contrast media and their correlative rates of reaction. The mechanism of contrast reactions, predisposing risk factors, and preventative measures will then be discussed. The remainder of the article will review the assessment of potential reactions, initial management, and treatment algorithms for specific reactions.

Prospective randomized comparison of standard didactic lecture versus high-fidelity simulation for radiology resident contrast reaction management training.

OBJECTIVE: The objective of our study was to assess whether high-fidelity simulation-based training is more effective than traditional didactic lecture to train radiology residents in the management of contrast reactions. SUBJECTS AND METHODS: This was a prospective study of 44 radiology residents randomized into a simulation group versus a lecture group. All residents attended a contrast reaction didactic lecture. Four months later, baseline knowledge was assessed with a written test, which we refer to as the "pretest." After the pretest, the 21 residents in the lecture group attended a repeat didactic lecture and the 23 residents in the simulation group underwent high-fidelity simulation-based training with five contrast reaction scenarios. Next, all residents took a second written test, which we refer to as the "posttest." Two months after the posttest, both groups took a third written test, which we refer to as the "delayed posttest," and underwent performance testing with a high-fidelity severe contrast reaction scenario graded on predefined critical actions. RESULTS: There was no statistically significant difference between the simulation and lecture group pretest, immediate posttest, or delayed posttest scores. The simulation group performed better than the lecture group on the severe contrast reaction simulation scenario (p = 0.001). The simulation group reported improved comfort in identifying and managing contrast reactions and administering medications after the simulation training (p ≤ 0.04) and was more comfortable than the control group (p = 0.03), which reported no change in comfort level after the repeat didactic lecture. CONCLUSION: When compared with didactic lecture, high-fidelity simulation-based training of contrast reaction management shows equal results on written test scores but improved performance during a high-fidelity severe contrast reaction simulation scenario.

Granulomatous Mastitis: What Radiologists Should Know With Imaging Examples of Biopsy Proven Cases.

ABSTRACT: Granulomatous mastitis is a rare benign inflammatory disease of the breast, predominantly affecting women of childbearing age. Because of its low prevalence, the literature is limited, and its treatment algorithm is unclear. However, it is important to understand this disease for timely diagnosis and treatment. Our overview with imaging examples of biopsy-proven cases aims to improve our knowledge and to determine when it would be appropriate to include it in the differential diagnosis.

Glomangioma: a case report and review of the literature.

Glomus tumors are benign localized tumors of the skin accounting for 1% to 2% of all soft tissue tumors. They may present as a solitary tumor or multiple tumors, termed glomangioma. We describe a 69-year-old man with a medical history of psoriasis and hypertension who presented with an incidental finding of multiple asymptomatic, noncompressible, blue lesions over his arms, chest, and back. The lesions, present since childhood, had never been subject to a workup. The patient had no history of gastrointestinal bleeding and no known family history of similar lesions. Physical examination revealed multiple nontender, blue, subcutaneous nodules that were 1 to 2 cm in diameter and located on the bilateral arms, chest, and back. The diagnosis of glomangioma was made and no further treatment was indicated.

Outcomes That Matter to Teens With Type 1 Diabetes.

Purpose The purpose of the study was to describe outcomes that matter to teens with type 1 diabetes. Understanding outcomes that matter to teens could support successful interventions to improve diabetes self-management. Methods Fifty publicly available posts published in the "teen" sections of 2 major diabetes online forums between 2011 and 2013 were analyzed using qualitative research methods. From each post, content and descriptive data (eg, duration of diabetes and age) were collected. Two members of the research team independently used open coding techniques to identify outcomes (defined as impacts or consequences of type 1 diabetes) and organized them into themes and subthemes. A codebook was jointly developed to facilitate the identification of meaningful outcomes from the posts. Results Teens' average age was 15.7 years, and the average time since diabetes diagnosis was 6.3 years. The 3 most commonly mentioned outcomes were (1) interactions with peers ("I want to talk to someone who understands"), (2) emotional well-being ("Diabetes makes me want to cry"), and (3) blood glucose management ("My blood sugar never goes down"). Other identified outcomes included (4) physical well-being, (5) education and motivation of others, (6) family interactions, (7) academic achievement, and (8) interactions with important others such as teachers. Conclusions While teens are concerned about control of their blood glucose, there are many other outcomes that matter to them. Health care providers and diabetes educators may want to consider these other outcomes when motivating teens with type 1 diabetes to improve blood glucose control.

Prospective randomized study of contrast reaction management curricula: computer-based interactive simulation versus high-fidelity hands-on simulation.

PURPOSE: We developed a computer-based interactive simulation program for teaching contrast reaction management to radiology trainees and compared its effectiveness to high-fidelity hands-on simulation training. MATERIALS AND METHODS: IRB approved HIPAA compliant prospective study of 44 radiology residents, fellows and faculty who were randomized into either the high-fidelity hands-on simulation group or computer-based simulation group. All participants took separate written tests prior to and immediately after their intervention. Four months later participants took a delayed written test and a hands-on high-fidelity severe contrast reaction scenario performance test graded on predefined critical actions. RESULTS: There was no statistically significant difference between the computer and hands-on groups' written pretest, immediate post-test, or delayed post-test scores (p>0.6 for all). Both groups' scores improved immediately following the intervention (p<0.001). The delayed test scores 4 months later were still significantly higher than the pre-test scores (p ≤ 0.02). The computer group's performance was similar to the hands-on group on the severe contrast reaction simulation scenario test (p = 0.7). There were also no significant differences between the computer and hands-on groups in performance on the individual core competencies of contrast reaction management during the contrast reaction scenario. CONCLUSION: It is feasible to develop a computer-based interactive simulation program to teach contrast reaction management. Trainees that underwent computer-based simulation training scored similarly on written tests and on a hands-on high-fidelity severe contrast reaction scenario performance test as those trained with hands-on high-fidelity simulation.

Current status of residency training of allergic-like adverse events to contrast media.

RATIONALE AND OBJECTIVES: Acute allergic-like adverse reactions to contrast media are rare but life-threatening events. Residents may complete training without ever managing such an event. Surveys have shown practicing radiologists to incorrectly dose and administer medications for treatment. Thus, contrast education may be deficient or inconsistent. The purpose of this study was to assess the current status of contrast reaction education in US radiology residency programs and the methods used to test residents' knowledge. MATERIALS AND METHODS: A 10-question anonymous survey on residency education methods and testing pertaining to allergic-like adverse events to contrast media was distributed through the Association of Program Directors in Radiology to program directors of US diagnostic radiology residency programs. The past 4 years of the American College of Radiology in-service examination were reviewed to assess the number of contrast reaction questions. RESULTS: Fifty-one programs responded to the Association of Program Directors in Radiology survey. Forty-nine percent of programs train with one lecture per year, 29.4% train with two lectures, and 16% train with three or more lectures. Only 44% include role-playing training during the lectures. Eighteen percent of programs are incorporating simulation training. Fewer than 50% of programs formally test residents' knowledge, and there were no questions on the 2007 to 2010 American College of Radiology in-service examinations. CONCLUSIONS: Resident education for contrast reaction management is primarily performed with annual lectures. Only 18% of programs are using simulation training, and <50% are testing residents' knowledge or skills. These findings suggest that education may need revision to incorporate simulation or other means of psychomotor learning.

Cost analysis and feasibility of high-fidelity simulation based radiology contrast reaction curriculum.

RATIONALE AND OBJECTIVES: Radiology residents have variable training in managing acute nonrenal adverse reactions to iodinated contrast media because of their rarity. Preliminary results show positive feedback and knowledge gain with high-fidelity simulation-based training. Financial costs and the time required to implement a high-fidelity simulation curriculum are higher than for a lecture series. The objective of this study was to provide a financial and time cost-benefit analysis for high-fidelity simulation training of acute adverse reactions to iodinated contrast media. MATERIALS AND METHODS: Forty-four radiology residents were divided into lecture and simulation groups. Five simulation scenarios were created, with core education content mirrored in the lecture. Lengths of faculty time commitment and resident training were recorded. Financial costs, including manikin and simulation facility rates, were recorded and divided by the number of residents to obtain per resident simulation and lecture costs. A written evaluation of the experience, with Likert-type items and unstructured response items, was conducted. RESULTS: Cost per resident for simulation training setup was $259.76, and $203.46 for subsequent years, compared to <$5 for lecture. Faculty time was 7 academic days for simulation versus 2 days for lecture format. Resident simulation commitment was 3 hours 30 minutes. Time to train technologists to run the simulation was 3 hours. All residents provided positive feedback regarding the simulation curriculum, with mean feedback scores statistically higher than lecture group (P < .05). CONCLUSIONS: This study illustrates that financial costs of implementation are low compared to the potential cost of morbidity associated with the life-threatening event of an acute adverse reaction to iodinated contrast media.