Influence of Academic Productivity on Gender Disparity in Academic Interventional Radiology.

OBJECTIVE. This study aimed to determine the effect of academic productivity measured using surrogate metrics, including h-index, publication number, and citation number, on the advancement of academic interventional radiology (IR) staff. MATERIALS AND METHODS. Publicly available data on faculty members in IR departments across academic institutions in Canada and the United States were collected. Gender, academic ranking, leadership position (if any), publication number, citation number, years of active research, and h-index were collected for each faculty member, and these data were used to create a prediction equation. RESULTS. Four hundred twenty IR faculty members met the inclusion criteria for this study. Overall, women were the minority, representing 10% of all IR faculty. Women in academic IR attained academic ranks at a rate comparable to that of men, with 59% of women attaining the rank of assistant professor and 32% attaining associate professor, compared with 59% of men at the assistant professor and 25% at the associate professor level. A trend toward lower female representation was present at the full professor level (women, 8%; men, 15%) but this difference did not reach statistical significance. Leadership position by gender as a percentage of their overall representation in the field was also similar between women and men (first-in-command women, 15%; first-in-command men, 15%; second-in-command women, 2%; second-in-command men, 2%). No significant difference was found between women and men in terms of academic achievement metrics, including publication number, citation number, h-index, and years of active research. CONCLUSION. Women in academic IR achieve similar publication metrics as men and attain promotion to higher academic rank and leadership positions equal to their overall representation in the field. However, women remain the minority among academic IR faculty across North America.

Patient Complaints in Image-Guided Interventions: Evaluation of Multifactorial Issues Using a Coding Taxonomy.

OBJECTIVE: The purpose of this article is to classify complaints from patients undergoing image-guided interventions using a coding taxonomy and to test whether single-coded complaints were resolved satisfactorily compared with multifactorial (multiple codes) complaints. MATERIALS AND METHODS: In this retrospective study, patients' complaint narratives between April 1999 and December 2012 were reviewed and categorized according to a three-level taxonomy into domains and codes. Resolutions were categorized as satisfactory or unsatisfactory to the patient and were classified as follows: clarification, apology, manager notification, change of provider, reimbursement, and quality review. Complaints were classified as single coded (only one code identified in the patients' description) and multifactorial (multiple codes identified). Statistical analysis was performed with the Fisher test, with the significance level set at 0.05. A run chart with the distribution of complaints by domains (relationships, management, and clinical) by year was performed. RESULTS: A total of 146 codes were extracted from 71 narratives (2.06 codes/complaint) and were classified into the following domains: clinical (52%; n = 76), management (24%; n = 35), and relationships (24%; n = 35). The most common codes included quality of care, safety, and communication breakdown issues. A run chart found a decline in absolute numbers of complaints over the years in the domains studied. The frequency of satisfactory resolution was 86% for multifactorial versus 81% for single-coded complaints with no statistically significant differences observed (p = 0.72). Over 50% of complaints were resolved by providing clarification to patients (n = 36). CONCLUSION: There were no statistically significant differences between multifactorial and single-coded complaints. Clinical codes and communication breakdown were the most common reasons for patient-reported complaint, with most complaints successfully resolved with clarification.

Pulmonary Artery Pseudoaneurysms: Clinical Features and CT Findings.

OBJECTIVE: The purpose of this study was to analyze the clinical and CT features of pulmonary artery pseudoaneurysms (PAPs). MATERIALS AND METHODS: A database search of chest CT examinations performed from January 1, 2000 to December 31, 2014 identified 24 patients with findings consistent with PAPs. A CT finding consistent with a PAP was defined as a focal saccular outpouching of a pulmonary artery. Medical records were reviewed to determine clinical presentations, treatments, and outcomes. CT scans were reviewed by two board-certified fellowship-trained chest radiologists. RESULTS: A total of 35 PAPs were identified in 24 patients. Hemoptysis and shortness of breath were the most common presenting symptoms. The most commonly identified causes of PAPs were infection (33%), neoplasms (13%), and trauma (17%). Of the 35 PAPs, 29 (83%) were located in segmental or subsegmental pulmonary arteries. A solitary PAP was identified in 20 (83%) patients, and multiple PAPs were identified in three patients with endocarditis and one patient with pulmonary metastases. Only three of 35 (9%) PAPs were associated with a ground-glass halo. Endovascular treatment was successfully performed in 12 patients, and only one patient had immediate recurrent hemoptysis after treatment. PAP was clinically suspected by the referring clinicians in only three patients. Sixteen of the 35 (46%) PAPs were not reported on the initial CT studies. CONCLUSION: PAPs showed a strong predilection for the peripheral pulmonary arteries. Multiplicity of PAPs can be seen in the settings of endocarditis and pulmonary metastatic disease. Most PAPs were not associated with a ground-glass halo. PAPs can be lethal but were often not suspected clinically and were underreported by radiologists.

Prospective analysis of an interprofessional team training program using high-fidelity simulation of contrast reactions.

OBJECTIVE: Successful management of a contrast reaction requires prompt recognition and treatment and effective team dynamics among radiologists, technologists, and nurses. A radiology department implemented a simulation program in which teams of nurses, technologists, and physicians managed simulated contrast reactions. The purpose of this study was to evaluate whether simulation improved the participants' abilities to manage a contrast reaction and work in a team during an emergency. SUBJECTS AND METHODS: Physicians, nurses, and technologists worked in inter-professional teams to manage two high-fidelity simulated adverse contrast reactions. Participants completed surveys before and after the simulation that included knowledge-based questions about the appropriate management of contrast reactions. Surveys also included questions for assessing participants' perceptions of their ability to manage adverse contrast reactions, measured with a 6-point Likert scale. Before and after comparisons were made with the McNemar test with a Bonferroni correction requiring p ≤ 0.003 for significance. For the other analyses, p ≤ 0.05 was considered significant. RESULTS: After completion of the simulation exercises, participants had significant improvement in knowledge (p < 0.001). After the simulation, participants reported significant improvement in their ability to manage an anaphylactoid reaction and their ability to work in a team (p < 0.00001). Participants requested repeat simulation exercises every 6-12 months. CONCLUSION: Simulation exercises improved the self-reported ability of radiology personnel to manage contrast reactions and work in a team during an emergency. Simulation should be incorporated into future educational initiatives to improve patient safety in radiology practices.

Direct translumbar inferior vena cava ports for long-term central venous access in patients with cancer.

PURPOSE: To evaluate the indications, complications, and long-term results of translumbar port placements to the inferior vena cava for long-term central venous access in a single tertiary center. MATERIALS AND METHODS: This retrospective study included all patients with cancer who underwent translumbar port placement from January 2000 to July 2012; 31 patients (all women) with an average age of 53.1 years ± 11.1 (range, 30-77 y) were included in the study. Of these patients, 26 (81%) had breast cancer, 3 had lung cancer, 1 had ovarian cancer, and 1 had rectal cancer. Indications included central venous occlusion in 9 patients (29%) and bilateral mastectomy and lymph node dissection in 22 patients (71%). RESULTS: All procedures were technically successful. The overall 30-day complication rate was 9.7% (n = 3). Average catheter use was 14.1 months ± 21 (range, 0.75-108 mo). Thirteen (41.9%) ports were removed because they were no longer needed; 4 (12.9%) ports required removal for port malfunction; 12 (38.7%) patients died with their ports still in place; 2 (6.5%) ports remain in use. Three (9.7%) ports required delayed secondary intervention to remain functional. One patient had a systemic infection attributed to the port, resulting in an overall infection rate of 0.08 per 1,000 catheter days. CONCLUSIONS: Translumbar inferior vena cava port placement is a technically feasible and safe alternative method for long-term central venous access.

Embolization of angiographically visible type I and II utero-ovarian anastomoses during uterine artery embolization for fibroid tumors: impact on symptom recurrence and permanent amenorrhea.

PURPOSE: To compare the incidences of symptom recurrence and permanent amenorrhea following uterine artery embolization (UAE) for symptomatic fibroid tumors in patients with type I and II utero-ovarian anastomoses (UOAs) with versus without ovarian artery embolization (OAE). MATERIALS AND METHODS: A retrospective, institutional review board-approved study of 99 women who underwent UAE for symptomatic fibroid tumors from April 2005 to October 2010 was conducted to identify patients who had type I or II UOAs at the time of UAE. Based on the embolization technique, patients were categorized into standard (ie, UAE only), combined (ie, UAE and OAE), and control (patients without UOAs who underwent UAE) groups. Data collected included patient characteristics, procedural technique and findings, symptom recurrence, secondary interventions, and permanent amenorrhea. Statistical analysis was performed with the Fisher exact test, with significance reached at P < .05. RESULTS: Twenty patients (20.2%; mean age, 46.9 y ± 6.3) had type I (n = 3) or II (n = 17) UOAs. Thirteen (65%) underwent UAE only (standard group) and seven (35%) underwent UAE and OAE (combined group). There were no significant differences between groups in demographics or in the incidence of permanent amenorrhea after procedures (follow-up, 561 d ± 490). There was a significantly higher incidence of symptom recurrence in the standard group compared with the control group (P = .01), with no differences between combined and control groups (P = 1). CONCLUSIONS: There were no statistical differences in permanent amenorrhea rates in the groups studied, with significantly higher symptom recurrence rates observed when OAE was not performed in the setting of UOA.

Diagnosis of gynecologic malignancy after the treatment of presumed benign fibroid disease with interventional radiology procedures: a retrospective cohort study.

OBJECTIVE: To ascertain the finding of future diagnosis of malignancy in women who undergo nonsurgical treatment for uterine fibroid disease with interventional radiology (IR) procedures. DESIGN: Mixed-methods retrospective cohort study. SETTING: Two tertiary care academic hospitals in Boston, Massachusetts. PATIENT(S): A total of 491 women who underwent radiologic intervention for fibroids between 2006 and 2016. INTERVENTION(S): Uterine artery embolization or high-intensity focused ultrasound ablation. MAIN OUTCOME MEASURE(S): Subsequent surgical interventions and diagnosis of gynecologic malignancy after the IR procedure. RESULT(S): During the study period, 491 women underwent treatment of fibroids with IR procedures; follow-up information was available for 346 cases. The mean age was 45.3 ± 4.8 years, and 69.7% were between the ages of 40 and 49 years. Regarding ethnicity, 58.9% of patients were white, and 26.1% were black. The most common symptoms were abnormal uterine bleeding (87%), pelvic pressure (62.3%), and pelvic pain (60.9%). A total of 106 patients underwent subsequent surgical treatment of fibroids. Of the 346 patients who had follow-up, 4 (1.2%) were diagnosed with leiomyosarcoma after their interventional treatment for fibroids. An additional 2 cases of endometrial adenocarcinoma and 1 case of a premalignant lesion of the endometrium were noted. CONCLUSION(S): The proportion of patients who went on to be diagnosed with leiomyosarcoma after conservative IR treatments appears to be higher than previously reported. A thorough preprocedural workup and patient counseling regarding the possibility of underlying uterine malignancy should be undertaken.

Image optimization during endovascular aneurysm repair.

OBJECTIVE: The purposes of this review are to examine various properties of the fluoroscopic imaging equipment used during endovascular aneurysm repair (EVAR) that can be modified to reduce radiation dose while optimizing image acquisition and display, to detail geometric aspects of EVAR intraprocedural imaging used to achieve consistently optimal EVAR results, and to describe acquisition parameters and strategies for minimizing contrast-induced nephropathy. CONCLUSION: The outcome of EVAR is strongly linked to image acquisition and interpretation, including the preprocedural, intraprocedural, and postprocedural display of relevant vascular anatomy, positions and configurations of the endograft components, and documentation of successful aneurysm exclusion. Operator familiarity with the imaging equipment, radiation and contrast dose reduction strategies, and image optimization techniques strongly influence the outcome of EVAR.

In vitro analysis of downstream particulates with mechanical thrombectomy devices: comparison of 20-kHz sonothrombolytic and rotating dispersion wire systems.

PURPOSE: To assess the potential of macroembolization, the authors compared the downstream particulate profile generated with use of two thrombectomy devices, a 20-kHz ultrasound-based sonothrombolytic (ST) device and a rotating dispersion wire (RDW). MATERIALS AND METHODS: An arterial flow model was pressurized to 100 mm Hg and perfused with 1,000 mL/min normal saline. Tubing containing 7-mm x 30-cm bovine thrombus proximal to a 75% stenosis was inserted distal to a nonstenosed bypass. The effluent was passed successively through 1,000-, 500-, and 200-microm filters and a particle analyzer. The ST device and RDW were activated for 10 and 15 minutes, respectively, in randomized sequences of experimental sets with and without the use of 10-mg tissue-type plasminogen activator (tPA). Results are expressed as means and standard deviations of fraction of lysed clot in each category. RESULTS: The ST device produced significantly fewer particulates larger than 1,000 microm (1.3% +/- 1.4) than did the RDW (16.8% +/- 8.4, P < .001) and significantly more particulates smaller than 10 microm (90.7% +/- 7.6) than did the RDW (73.9% +/- 9.5; P < .001) at comparable thrombolytic efficacy (P = .982) and without significant effect from tPA (P = .988). There were no significant differences between particles measuring 500-1,000 microm (ST device: 0.3% +/- 0.3, RDW: 0.4% +/- 0.3; P = .653) and those measuring 10-199 microm (ST device: 7.5% +/- 7.5, RDW: 8.6% +/- 3.8; P = .624). The amount of particles on the 200-microm filter after RDW activation (0.4% +/- 0.3) exceeded those trapped after use of the ST device (0.1% +/- 0.1, P = .007) but contributed relatively little overall. CONCLUSIONS: In this in vitro model, the use of the ST device resulted in fewer large particulates than did the use of the RDW, with more clots being reduced to less than 10 microm.

ACR Appropriateness Criteria® Clinically Suspected Adnexal Mass, No Acute Symptoms.

There are approximately 9.1 pelvic surgeries performed for every histologically confirmed adnexal malignancy in the United States, compared to 2.3 surgeries per malignancy (in oncology centers) and 5.9 surgeries per malignancy (in other centers) in Europe. An important prognostic factor in the long-term survival in patients with ovarian malignancy is the initial management by a gynecological oncologist. With high accuracy of imaging for adnexal mass characterization and consequent appropriate triage to subspecialty referral, the better use of gynecologic oncology can improve treatment outcomes. Ultrasound, including transabdominal, transvaginal, and duplex ultrasound, combined with MRI with contrast can diagnose adnexal masses as benign with specific features (ie, functional masses, dermoid, endometrioma, fibroma, pedunculated fibroid, hydrosalpinx, peritoneal inclusion cyst, Tarlov cyst), malignant, or indeterminate. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.

Mannequin-based Telesimulation: Increasing Access to Simulation-based Education.

A telesimulation platform utilizes communications technology to provide mannequin-based simulation education between learners and instructors located remotely from one another. Specifically, the instructor controls the mannequin and moderates the debriefing remotely. During these sessions, the instructor observes the learners in real time and provides immediate feedback during the debriefing. This platform obviates the need to have instructors, learners, and mannequins in the same place at the same time, potentially allowing simulation-based educational sessions to occur with greater frequency for institutions not located proximate to formal simulation centers. Additionally, the telesimulation platform enables an experienced simulation instructor to observe and directly help new simulation instructors at remote simulation locations. Readily available Web-conferencing, screen-sharing software, microphones, and webcams makes telesimulation possible. Mannequin-based telesimulation is relatively new and not well represented in the literature, but could facilitate systems changes, providing educational experiences to health care professionals in locations not currently benefiting from mannequin-based simulation opportunities. Several research questions need to be addressed in future studies to better develop this educational approach, including technical feasibility, logistic issues, a comparison of telesimulation to other simulation approaches, and assessing limitations of the telesimulation platform.

ACR Appropriateness Criteria® Staging and Follow-Up of Ovarian Cancer.

In the management of epithelial ovarian cancers, imaging is used for cancer detection and staging, both before and after initial treatment. The decision of whether to pursue initial cytoreductive surgery for ovarian cancer depends in part on accurate staging. Contrast-enhanced CT of the abdomen and pelvis (and chest where indicated) is the current imaging modality of choice for the initial staging evaluation of ovarian cancer. Fluorine-18-2-fluoro-2-deoxy-d-glucose PET/CT and MRI may be appropriate for problem-solving purposes, particularly when lesions are present on CT but considered indeterminate. In patients who achieve remission, clinical suspicion for relapse after treatment prompts imaging evaluation for recurrence. Contrast-enhanced CT is the modality of choice to assess the extent of recurrent disease, and fluorine-18-2-fluoro-2-deoxy-d-glucose PET/CT is also usually appropriate, as small metastatic foci may be identified. If imaging or clinical examination confirms a recurrence, the extent of disease and timing of disease recurrence then determines the choice of treatments, including surgery, chemotherapy, and radiation therapy. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.

Hypnosis for acute distress management during medical procedures.

The use of hypnosis during medical procedures has a long-standing tradition but has been struggling for acceptance into the mainstream. In recent years, several randomized-controlled trials with sufficient participant numbers have demonstrated the efficacy of hypnosis in the perioperative domain. With the advancements of minimally invasive high-tech procedures during which the patient remains conscious, hypnotic adjuncts have found many applications. This article describes the procedural environment as well as pharmacologic and nonpharmacologic interventions to reduce distress. Current research findings, controversies in the literature, and safety considerations are reviewed. Implications for clinical practice and training as well as directions for future research are discussed. Obstacles and possible reasons for the slow acceptance of nonpharmacologic interventions, mind-body therapies, and patient-centered approaches are addressed.