The American Society of Radiologic Technologists (ASRT) AI educator survey: A cross-sectional study to explore knowledge, experience, and use of AI within education.

INTRODUCTION: Artificial Intelligence (AI) is revolutionizing medical imaging and radiation therapy. AI-powered applications are being deployed to aid Medical Radiation Technologists (MRTs) in clinical workflows, decision-making, dose optimisation, and a wide range of other tasks. Exploring the levels of AI education provided across the United States is crucial to prepare future graduates to deliver the digital future. This study aims to assess educators' levels of AI knowledge, the current state of AI educational provisions, the perceived challenges around AI education, and important factors for future advancements. METHODS: An online survey was electronically administered to all radiologic technologists in the American Society of Radiologic Technologists (ASRT) database who indicated that they had an educator role in the United States. This was distributed through the membership of the ASRT, from February to April 2023. All quantitative data was analysed using frequency and descriptive statistics. The survey's open-ended questions were analysed using a conceptual content analysis approach. RESULTS: Out of 5,066 educators in the ASRT database, 373 valid responses were received, resulting in a response rate of 7.4%. Despite 84.5% of educators expressing the importance of teaching AI, 23.7% currently included AI in academic curricula. Of the 76.3% that did not include AI in their curricula, lack of AI knowledge among educators was the top reason for not integrating AI in education (59.1%). Similarly, AI-enabled tools were utilised by only 11.1% of the programs to assist teaching. The levels of trust in AI varied among educators. CONCLUSION: The study found that although US educators of MRTs have a good baseline knowledge of general concepts regarding AI, they could improve on the teaching and use of AI in their curricula. AI training and guidance, adequate time to develop educational resources, and funding and support from higher education institutions were key priorities as highlighted by educators.

Proteus syndrome: three case reports with a review of the literature.

Proteus syndrome (PS) is a rare, progressive disorder that manifests as asymmetric, disproportionate overgrowth affecting tissues derived from any germline layer. Cases of PS from 2005-2010 were retrieved from the pathology files at our institution. Two confirmed cases and one possible case of PS were identified. All patients came from different ethnic backgrounds. Patient 1 displayed classic skin and overgrowth lesions. Patient 2 displayed various features, particularly vascular malformations. Patient 3 demonstrated a cerebriform connective tissue nevus alone. These patients demonstrate the spectrum of presentations of PS. Much is left to learn about this disfiguring disease.

Pediatric digital radiography education for radiologic technologists: current state.

BACKGROUND: Digital radiography (DR) is one of several new products that have changed our work processes from hard copy to digital formats. The transition from analog screen-film radiography to DR requires thorough user education because of differences in image production, processing, storage and evaluation between the forms of radiography. Without adequate education, radiologic technologists could unknowingly expose children to higher radiation doses than necessary for adequate radiograph quality. OBJECTIVE: To evaluate knowledge about image quality and dose management in pediatric DR among radiologic technologists in the U.S. MATERIALS AND METHODS: This communication describes a survey of 493 radiologic technologists who are members of the American Society of Radiologic Technologists (ASRT) and who evaluated the current state of radiological technologist education in image quality and dose management in pediatric DR. The survey included 23 survey questions regarding image acquisition issues, quality assurance, radiation exposure and education in DR of infants and children. RESULTS: Radiologic technologists express many needs in areas of training and education in pediatric DR. Suggested improvements include better tools for immediate feedback about image quality and exposure, more information about appropriate technique settings for pediatric patients, more user-friendly vendor manuals and educational materials, more reliable measures of radiation exposure to patients, and more regular and frequent follow-up by equipment vendors. CONCLUSION: There is a clear and widespread need for comprehensive and practical education in digital image technology for radiologic technologists, especially those engaged in pediatric radiography. The creation of better educational materials and training programs, and the continuation of educational opportunities will require a broad commitment from equipment manufacturers and vendors, educational institutions, pediatric radiology specialty organizations, and individual imaging specialists.

Trends in unilateral breast reconstruction and management of the contralateral breast: the Emory experience.

Recent trends in breast reconstruction have transitioned toward the skin-sparing type of mastectomy and immediate reconstruction using autologous tissue. This study was designed to document trends in the management of patients with unilateral breast cancer and to determine how they influence management of the contralateral breast. All patients who underwent unilateral breast reconstruction at Emory University Hospitals from January of 1975 to December of 1999 were reviewed. The cohort was stratified by timing of reconstruction (immediate versus delayed), method of reconstruction, and mastectomy type (skin-sparing versus non-skin-sparing). The methods of reconstruction included implant, latissimus dorsi flap, and transverse rectus abdominis musculocutaneous (TRAM) flap. Contralateral procedures to achieve symmetry included augmentation, mastopexy, augmentation/mastopexy, and reduction. A total of 1394 patients were evaluated, including 689 delayed and 705 immediate reconstructions. Sixty-seven percent of delayed-reconstruction patients (462 of 689) had a symmetry procedure performed on the opposite breast, compared with 22 percent for the immediate-reconstruction patients (155 of 705) (p

Significance of intraabdominal compartment pressures following TRAM flap breast reconstruction and the correlation of results.

Abdominal wall closure after transverse rectus abdominis myocutaneous (TRAM) flap breast reconstruction is often performed under considerable tension and may theoretically cause a component of abdominal compartment syndrome. This prospective study examined intraabdominal pressure after TRAM reconstruction and correlated the findings with clinical course and outcome. All patients who underwent pedicled TRAM flap breast reconstruction from November of 1999 to December of 2000 (n = 77) were included and compared with nonoperative controls (n = 24). Intraabdominal pressures were measured indirectly using the urinary catheter in the postanesthesia care unit on postoperative days 1 and 2. Outcome measures included vital signs, urinary output, net 24-degree fluid balance, and complications. The preoperative variables were age, body mass index, parity, and presence of an epidural. For statistical analysis, the TRAM patients were divided into three groups on the basis of type of closure (bipedicle, unipedicle, and mesh), which were compared by analysis of variance. A multivariate logistic regression was performed to identify risk factors for patients with intraabdominal pressures > or =20 mmHg who were thought to have a component of abdominal compartment syndrome. The incidence of complications was compared by chi-square, with statistical significance determined for p < 0.05. Average intraabdominal pressures were significantly higher in the bipedicled TRAM (14.1 mmHg) and unipedicle TRAM (9.9 mmHg) groups when compared with the mesh group (5 mmHg) and controls (3.7 mmHg; p < 0.001). Increased intraabdominal pressure was transient and peaked on postoperative day 1. Elevated pressure was associated with decreased urinary output, decreased net fluid balance, and increased respiratory rate. Patients with intraabdominal pressures > or =20 mmHg (n = 10) had a higher incidence of complications (60 percent) compared with patients who had pressures <20 mmHg (18 percent; p < 0.05). Elevated intraabdominal pressures were strongly associated with donor-site and general complications. Positive predictive factors for elevated pressure included body mass index and type of closure (bipedicled or bilateral). Multiple pregnancies seemed to have a protective effect.A transient component of abdominal compartment syndrome does exist after TRAM flap breast reconstruction. Bipedicle closure, nulliparous women, and increased body mass index were risk factors for elevated intraabdominal pressures. Tension-free mesh closure seemed to have a protective effect. Symptomatic trends and certain complications were associated with, and possibly explained by, an elevated intraabdominal pressure.

State population as a predictor of radiation therapy staffing levels.

PURPOSE: Considering the cyclical nature of shortages and oversupplies of staffing levels in the labor force, an accurate prediction of future demand for personnel is of great importance. Historically, the profession of radiation therapy has been plagued with these cycles. This study establishes state population as a strong predictor of radiation therapy staffing levels. METHODS: A linear regression analysis was performed to determine the association between state population and radiation therapy staffing levels from 2002 to 2010. RESULTS: State population is a significant and substantial predictor variable for the number of actively employed and registered radiation therapists, with 89.5% to 91.4% of the variance accounted for from 2002 to 2010. CONCLUSIONS: Additional research in estimating future demand in radiation therapy is possible. By monitoring change in state population, health care professionals can proactively address cycles of shortages and oversupplies in staffing levels.

Entering-class enrollments in educational programs in radiography, radiation therapy, and nuclear medicine technology, 1999 to 2006.

PURPOSE: To track entering-class enrollments in primary programs in radiography, nuclear medicine technology, and radiation therapy and to anticipate trends in numbers entering those disciplines. METHODS: The American Society of Radiologic Technologists' annual Enrollment Snapshot of Radiography, Radiation Therapy, and Nuclear Medicine Educational Programs has surveyed program directors in these 3 disciplines every fall since 2001, obtaining information on entering-class enrollments, retention rates, and program viability. RESULTS: These survey results, together with American Registry of Radiologic Technologists statistics on the number of first-time certification examinees (which they foreshadow by about 2 years) show that the number of radiologic technologists entering these 3 disciplines declined steadily from 1995 to 2000, then increased steadily from 2000 to 2005. However, since 2005, entering-class enrollments have begun to level off, especially in radiation therapy and radiography. CONCLUSIONS: Entering-class enrollments provide an "early warning system" with respect to trends in the supply of radiographers, nuclear medicine technologists, and radiation therapists. Given the recent stabilization of entering-class enrollments in radiography and radiation therapy, we can anticipate a similar leveling off of the number of entrants into those 2 disciplines over the next 2 years.

Single-stage muscle flap reconstruction of the postpneumonectomy empyema space: the Emory experience.

BACKGROUND: Postsurgical chronic empyema continues to present a complicated treatment scenario for thoracic and reconstructive surgeons. Muscle flaps are an important option in the management of complex thoracic wounds. This study was designed to report the Emory experience with muscle flaps for the management of complex postsurgical empyema. The authors also present their treatment algorithm for managing empyema thoracis. METHODS: The authors retrospectively reviewed the charts of 55 patients requiring different treatment modalities, including muscle flap transposition. Patients were divided into four groups according to the initial thoracic procedure: group A, no surgical resection; group B, postpneumonectomy; group C, postlobectomy; and group D, prophylactic postpneumonectomy or postlobectomy. The study included 42 men (76.4 percent) and 13 women with a mean age of 62 years (range, 39 to 77 years). RESULTS: Fifty-one muscle flap procedures were performed in 42 patients (serratus anterior flaps, 16 patients and 23 flaps; latissimus dorsi flaps, 16 patients and 18 flaps; pectoralis major muscle flaps, intercostal muscle flaps, and rectus abdominis flaps, three patients each: omental flap, one patient). The mean number of ribs resected before flap intervention, usually during the open window thoracostomy, was three. The average time from initial thoracic operation to flap intervention was 4 months. Average time from flap intervention to discharge was 12.5 days. Average hospital stay was 26.6 days. The 51 muscle flaps represented an average of 1.2 procedures per patient. CONCLUSION: Because of the excellent blood supply of extrathoracic muscle flaps and their ability to reach any place in the pleural cavity, they represent an ideal tissue with which to fill the contaminated pleural space.

The role of muscle flaps in wound salvage after vascular graft infections: the Emory experience.

BACKGROUND: The incidence of prosthetic graft infection is 1 to 6 percent, and the mortality rate of infected aortoiliac or aortofemoral bypass is 25 to 75 percent. The goal of this study was to report the use of muscle flaps in the management of patients presenting with infected vascular grafts. METHODS: A total of 22 patients required 26 muscle flaps to cover 24 infected vascular grafts. Muscle flaps were used for local wound control in all patients regardless of the fate of the graft. The vascular surgeons elected for graft salvage in eight of the 24 grafts. All of the muscle flaps survived. RESULTS: The average time interval between the bypass and infection was 371 days. One-month follow-up revealed an 88 percent salvage rate, but this decreased to 50 percent during the mean follow-up of 23 months. None of the patients originally managed with a salvaged graft lost a limb, and overall, 14 of 22 limbs in this series remained viable (64.0 percent). The mortality rate during the index hospitalization was 9 percent. In this series, suprainguinal grafts had a higher mortality rate. In addition, infection occurring more than 1 month postoperatively, culture-positive Pseudomonas and methicillin-resistant species, and exposure of the arterial-graft anastomosis were poor prognostic indicators of graft preservation. CONCLUSIONS: Management of infected vascular grafts remains a challenging problem. Muscle flap coverage should have a high priority, as the chance of a good outcome is highly favorable in early infections.

Factors that influence the completion of breast reconstruction.

Post mastectomy breast reconstruction continues to evolve in both timing and technique; however, multiple surgical procedures are usually required. The purpose of this report was to determine the number of secondary procedures required to complete the breast reconstruction and factors that influence this process. All patients who underwent breast reconstruction at Emory University Hospital between 1975 and 2000 were reviewed. The end point and inclusion criterion was completion to nipple reconstruction. Secondary procedures were determined per patient for either unilateral or bilateral reconstructions, and defined as any surgical manipulation of the reconstructed breast, contralateral breast, or donor site. The cohort was stratified by timing and method of reconstruction. Additional variables included risk factors, radiation therapy, and complications. A total of 888 patients completed the reconstructive process (738 unilateral and 150 bilateral). The average number of secondary procedures was 3.99 for unilateral, and 5.54 for bilateral. Delayed reconstructions had a higher number of secondary procedures in both groups. Transverse rectus abdominus musculocutaneous flap reconstruction tended to have more secondary procedures than implant or latissimus dorsi with or without implant reconstructions. Radiation therapy increased the number of secondary procedures in unilateral (3.9 versus 4.6, P < 0.001) and in bilateral reconstructions (5.7 versus 6.4, P = 0.032). The number of secondary procedures also increased exponentially with the number of risk factors (0-4), and patients with any complication had a higher number of secondary procedures for unilateral (4.5 versus 3.6, P < 0.001) and bilateral reconstructions (6.4 versus 4.5, P < 0.001). Secondary breast and donor site procedures were used as an outcome measure to formulate comparisons. Autologous tissue reconstruction required more secondary procedures, likely in part to donor site revisions. Delayed reconstruction, the need for radiation therapy, any complication, and more risk factors significantly increased the number of secondary procedures required to complete the reconstructive process.

Importance of right subcostal incisions in patients undergoing TRAM flap breast reconstruction.

The presence of a preexisting subcostal incision alters the approach to breast reconstruction and is thought to predispose to donor site skin complications and flap loss. The purpose of this study was to determine whether the presence of a subcostal scar affects breast or donor site morbidity adversely after transverse rectus abdominis musculocutaneous (TRAM) flap breast reconstruction. Twenty-six patients with a right subcostal incision (group A) underwent TRAM flap breast reconstruction (13 immediate, 13 delayed). The average age was 51 years, and the patients had an average body mass index of 25.3. There were 15 right, 10 left, and 1 bilateral reconstruction (4 free flaps, 22 pedicled). Outcome measures were compared with 126 age- and risk-matched patients (group B) who underwent TRAM flap reconstruction without any preexisting abdominal scar. The average age in group B was 46.7 years, and the patients had an average body mass index of 24.8. The average length of stay in group A was 5.9 days, compared with 4.8 days in group B ( < 0.05). There were no significant differences in breast-related complications. Donor site complications were higher in group A, with abdominal wall skin necrosis being significantly higher in patients with a subcostal incision (25%) compared with those patients without abdominal wall scars (5%; = 0.02). Multivariate analysis revealed a 6.5-fold increase in donor site complications in patients with a subcostal incision and a smoking history ( < 0.05). When adjusted for radiation treatment, the increased incidence in donor site complication rate was only marginally significant ( = 0.08). TRAM flap breast reconstruction in patients with preexisting right subcostal scars is effective with certain technical modifications; however, there is a slight predisposition to increased abdominal wall complications. Smoking influenced outcome further in patients with a subcostal incision, stressing the importance of proper patient selection.

Atmospheric perfluorocarbons.

Collectively, man-made emissions of a few greenhouse gases may cause about the same amount of global warming as increasing carbon dioxide. Among the most potent of these non-CO2 greenhouse gases are the perfluorocarbons that have extraordinarily long atmospheric lifetimes of 10,000 to more than 50,000 yr. We report atmospheric concentrations over two decades, between 1978 and 1997, of the three most abundant perfluorocarbons--CF4, C2F6, and C3F8--and delineate the sources that account for the present abundances and trends. We show that C2F6 and C3F8 are present at only 2.9 and 0.2 pptv, respectively. CF4 is the most abundant perfluorocarbon at 74 pptv (in 1997) of which about 40 pptv are from natural emissions, 33 pptv from aluminum manufacturing, and 1 pptv from the semiconductor industry. The increasing trend of CF4 has slowed in recent years due to the major reductions in the emission rate per ton of aluminum produced. The effect of the falling emission factor is partially offset by increased production and increasing use by the semiconductor industry.

Omental free flap reconstruction in complex head and neck deformities.

BACKGROUND: Microvascular free flaps continue to revolutionize coverage options in head and neck reconstruction. This article reviews our 25-year experience with omental free tissue transfers. METHODS: All patients who underwent free omental transfer to the head and neck region were reviewed. RESULTS: Fifty-five patients were included with omental transfers to the scalp (25%), craniofacial (62%), and neck (13%) region. Indications were tumor resections, burn wound, hemifacial atrophy, trauma, and moyamoya disease. Average follow-up was 3.1 years (range, 2 months-13 years). Donor site morbidities included abdominal wound infection, gastric outlet obstruction, and postoperative bleeding. Recipient site morbidities included partial flap loss in four patients (7%) total flap loss in two patients (3.6%), and three hematomas. CONCLUSIONS: The omental free flap has acceptable abdominal morbidity and provides sufficient soft tissue coverage with a 96.4% survival. The thickness \and versatility of omentum provide sufficient contour molding for craniofacial reconstruction. It is an attractive alternative for reconstruction of large scalp defects and badly irradiated tissue.

Utility of the omentum in the reconstruction of complex extraperitoneal wounds and defects: donor-site complications in 135 patients from 1975 to 2000.

OBJECTIVE: To examine donor-site complications after omental harvest for the reconstruction of extraperitoneal wounds and defects. SUMMARY BACKGROUND DATA: The omentum, with its immunologic and angiogenic properties, is a versatile organ with well-documented utility in the reconstruction of complex wounds and defects. However, the need for laparotomy and the potential for intraabdominal complications have been cited as relative contraindications to the use of the omentum as a reconstructive flap. Further, few series have assessed long-term results, and no reports have focused on donor-site complications. METHODS: Patients who underwent reconstruction of extraperitoneal defects with the omentum at a single university healthcare system were identified by searching discharge databases and office records. Charts were reviewed to determine patient demographics, surgical indications and technique, postoperative complications, and outpatient follow-up. Patients with donor-site complications were compared with patients who had no complications using the Student t test and chi-square analysis. Statistical significance was defined at P <.05. RESULTS: From 1975 to 2000, the authors successfully harvested 135 omental flaps (64 pedicled, 71 free transfer) for reconstruction of the following defects: scalp (n = 16), intracranial (n = 1), orbitofacial (n = 33), neck (n = 8), upper extremity (n = 7), lower extremity (n = 4), intrathoracic (n = 3), sternal (n = 34), breast (n = 3), chest wall (n = 18), abdominal wall (n = 1), and perineal (n = 7). Donor-site complications in 25 patients (18.5%) included abdominal wall infection (n = 9), fascial dehiscence (n = 8), symptomatic hernia (n = 8), unplanned reexploration (n = 6), postoperative ileus (n = 3), gastrointestinal hemorrhage (n = 2), delayed splenic rupture (n = 1), gastric outlet obstruction (n = 1), and late partial small bowel obstruction (n = 1). Factors associated with increased donor-site complications included the use of pedicled flaps (compared with free tissue transfer), mediastinitis, advanced age, and pulmonary failure. Of note, 53 patients had undergone previous abdominal surgery; of these, 26 patients required extensive adhesiolysis and 4 patients sustained enterotomies. Eleven patients (8.1%) had partial flap loss and three patients (2.2%) had total flap loss. Mean length of stay was 28 days. Average follow-up was 2.4 years. The death rate was 5.9%. CONCLUSIONS: The omentum can be safely harvested and reliably used to reconstruct a diverse range of extraperitoneal wounds and defects. Donor-site complications can be significant but are usually limited to abdominal wall infection and hernia. Risk factors associated with complications include the use of pedicled flaps, mediastinitis, and pulmonary failure. This low rate of donor-site complications strongly supports the use of the omentum in the reconstruction of complex wounds and defects.