Lee BrownZack GrayJames M KetchumMolly Ratcliff...
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查看更多>>摘要：Purpose To investigate student perceptions of a structured advisement program。 Methods Using a mixed-methods approach， 24 radiologic sciences students were surveyed in the initial and final semesters of the program to capture their perceptions of advisement practices。 Quantitative data were analyzed for percentages and descriptive statistics， and qualitative responses were analyzed for emergent themes。 Results Qualitative data analyses identified 3 themes: building relationships， strengthening student performance， and determining best practices for advisement。 Quantitative data demonstrated that students appreciated the advisement process and acknowledged improvements in communication skills and the feedback loop。 Discussion Advisement sessions can serve an important role in identifying areas where students can improve their performance。 To grow and develop， students must understand their own strengths and weaknesses。 Structured forms of advisement can serve as important tools to guide advisement conversations toward specific topics。 Conclusion The results of this study indicate that student advising is a vital component of radiologic sciences programs。 Participants indicated that the advisement process helped them build relationships with faculty members and improved their overall performance。 student advisement， educators， student performance， appreciative advisement， prescriptive advisement， developmental advisement， proactive advisement， building relationships， advisement best practices
查看更多>>摘要：Purpose To investigate how lag time between graduation from an education program and exam date influenced candidates' performance on the American Registry of Radiologic Technologists (ARRT) certification and registration exams for radiography， nuclear medicine technology， radiation therapy， and magnetic resonance imaging。 Methods Data for this quasi-experimental study were obtained for 39 898 candidates taking the 4 certification and registration exams from January 1， 2017， to December 31， 2019。 Comparisons were made between candidates who took their certification exam within 8 weeks of graduation and candidates who waited 9 to 16 weeks after program completion。 Results All 4 exams had a significant decrease in their total scaled scores and content category-scaled scores on 4 exams from the first 8 weeks after program completion to the subsequent 8 weeks。 Discussion These results should encourage students to take their ARRT certification and registration exam as soon as possible after program completion， ideally within 8 weeks。 Conclusion Taking certification and registration exams soon after program completion can benefit students as well as the education programs from which they graduated because specialized-accredited programs must document ARRT pass rates with a minimum 5-year average of 75% or higher。
查看更多>>摘要：Purpose To investigate the use of weight-based protocols during full- and half-body fluorodeoxyglucose F 18 (FDG) positron emission tomography-computed tomography (PET-CT) and their effect on image quality， radiation dose， and lifetime attributable risks。 Methods A total of 1817 patients were referred for FDG PET-CT studies。 Each scanning group (4 total: full-body groups A and C and half-body groups B and D) was randomly allotted into conventional or weight-based CT Groups A and B followed a conventional protocol of 120 kVp， 120 mA， 0。5 second rotation time， and pitch 0。8 mm/rotation for all body weights。 Groups C and D were scanned using 1 of 4 weight-based CT protocols。 All 4 weight-based protocols used 140 kVp， 0。75 seconds rotation time， and pitch 0。8 mm/rotation。 Milliamperage varied by body weight as follows: protocol I (# 60kg [132。3 lb])， 35 mA; protocol II (61-80 kg [134。5-176。4 lb])， 50 mA; protocol III (81-100 kg [178。6-220。5 lb])， 65 mA; and protocol IV (> 100kg [222。7 lb])， 100 mA。 All protocols (weight based and conventional) employed tube current modulation。 CT quantitative image quality measurements were evaluated for each protocol， and lifetime attributable risks were calculated for each age group and sex。 Results Patient demographics demonstrated no significant differences between groups。 Mean effective dose was significantly lower for group C (full body， weight based) compared with A (full body， conventional) (P < 。001)， as were lifetime attributable risks (P < 。001)。 Mean effective dose and lifetime attributable risks also were significantly lower (P < 。001) for group D (half body， weight based) compared with B (half body， conventional)。 Contrast-to-noise ratios showed no difference between groups (P = 。12)， supporting a preference for the weigh-based protocols used for groups C and D。 For half-body， weight-based protocols (group D)， the lifetime attributable risks decreased for men by 91。9% and for women by 38。9%。 For full-body， weight-based protocols (group C)， the lifetime attributable risks decreased by 72。5% and 66。3% for men and women， respectively。 Discussion Radiologists and radiologic technologists face the challenge of balancing the potential risks of radiation-induced cancer against providing diagnostic-quality images and uncompromised disease detection。 Weight-based protocols address this challenge without compromising image quality or pathology detection。 Conclusion Significant reductions in radiation dose and lifetime attributable risks can be achieved using CT weight-based protocols during half- and whole-body FDG PET-CT without compromising CT image quality。
查看更多>>摘要：German radiologist and cardiologist Andreas Gruntzig made history on September 16， 1977， by completing the world’s first percutaneous transluminal coronary angioplasty (PTCA)。 This important medical advancement was built on the work of Werner Forssmann， who proved in 1929 that catheterization of the human heart was possible， and on the efforts of F Mason Sones， who conducted the first coronary angiogram in 1958。1-7
查看更多>>摘要：In 2022， the American Cancer Society projects an estimated 81 180 new cases of bladder cancer (61 700 cases in men and 19 480 in women)。1 According to the National Cancer Institute， bladder cancer composes 4。2% of new cancer cases。2 The American Cancer Society also estimates approximately 17 100 deaths (12 120 in men and 4980 in women) from bladder cancer in 2022。1 The National Cancer Institute predicted that bladder cancer would compose 2。8% of cancer deaths in 2022。2 Although the society noted a slight decline in rates of new bladder cancers and deaths among women and a decrease in incidence rates in men， death rates have remained relatively stable in recent years。1 Most people with bladder cancer (approximately 90%) are older than 55 years， and the mean age at bladder cancer diagnosis is 73 years。1
查看更多>>摘要：Chemotherapy is a widely used treatment plan for various types of cancers。 Chemotherapeutic drugs can increase survival rates and limit the recurrence of cancer; however， cancer survivors are more susceptible to cardiotoxicity (ie， toxicity of the heart) and subsequent cardiac complications。1 These cardiac complications are common among chemotherapy regimens and are the main limiting factor to providing optimal chemotherapy to patients。 Cardiotoxicity most often presents as a decline in left ventricular ejection fraction， known as chemotherapy-induced cardiomyopathy。1’2 Predicting which patients will have cardiotoxic effects from therapy drugs is impossible; therefore， medical imaging can be used to detect and manage cardiac complications。 Recommendations for monitoring left ventricular dysfunction typically are for damage from anthracyclines and trastuzumab and are limited for other cardiotoxic agents (eg， tyrosine kinase inhibitors and proteasome inhibitors)。2
查看更多>>摘要：Magnetic resonance (MR) imaging has shown to be an effective medical imaging technique that produces detailed crosssectional images of organs， tissues， and skeletal structures。1 Because of its versatility， MR imaging has been called “one of the most powerful diagnostic tools in contemporary clinical medicine。”2 MR imaging is advantageous because it does not rely on potentially harmful ionizing radiation used in other imaging techniques; however， the MR imaging scanner can cause considerable anxiety for individuals with claustrophobia， a fear of confined spaces。 The MR imaging scanner is designed as a large tube with a table in the middle。 During examinations， the patient lies supine on the table， is slid into the scanner tube， and must remain still so that the MR imaging technologist can produce the precise images needed to facilitate an accurate diagnosis。 Depending on the imaging required， the procedure can last from 20 to 50 minutes， which can be distressful for people with claustrophobia because the enclosed space might trigger anxietyinducing feelings and thoughts。
查看更多>>摘要：The phrase， “get comfortable with being uncomfortable，” is valuable advice that can feel ominous rather than inspiring。 However， during a radiologic technology program， the meaning behind the phrase becomes clear。 Health care students should learn to adapt to situations that are outside their comfort zone。 Starting something new can be a stressful experience， and the clinical component of a radiologic technology program can feel daunting。 When asked about the factors that cause the most stress， radiography students reported the fear of making a mistake and feelings of inexperience or being unprepared。1 Being prepared for uncomfortable situations is an approach that builds confidence， and confidence comes with experience。 Therefore， students should pursue uncomfortable situations and overcome them using several techniques， including communication， simulated or hands-on learning， and a proactive approach。
查看更多>>摘要：When radiologic technology students begin their journey in this ever-changing profession， they are excited and nervous。 Although each program differs in the amount of classroom instruction required before beginning clinical rotations， most students have the same fears about starting them。 In their efforts to provide tips and reinforce guidelines， instructors at the Fortis Institute in Cookeville， Tennessee， have focused on helping radiologic technology students have a successful experience during clinical rotations。
查看更多>>摘要：Drug abuse is a widespread issue that affects many Americans。 In 2020， approximately 53 million Americans， aged 12 years and older， have either misused prescription drugs， or used illegal drugs。1 People might be unaware of the potential effects of drugs， such as cannabis， 3，4-methylenedioxymethamphetamine (MDMA) and cocaine， and the damage they can cause。 Cannabis A 2014 study that assessed how cannabis use affects brain structure included 22 subjects that smoked cannabis occasionally and 25 subjects that smoked cannabis regularly。2 Subjects underwent brain magnetic resonance (MR) imaging to evaluate the effects of cannabis on the brain。 Regular cannabis users had decreased gray matter volume compared with the occasional cannabis users。2 In addition， the age at which users started to use cannabis correlated with the degree of gray matter loss in the brain。 Cannabis use at a young age， an age when the user’s cerebellum is not yet fully developed， might explain the increase in gray matter loss。2 A functional MR imaging brain scan revealed that areas of the brain that affect motivation and decision making are altered in the brains of regular cannabis users。
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