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Current opinion in radiology最新文献

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Small bowel imaging. 小肠显像。
Current opinion in radiology Pub Date : 1992-06-01
J C Lappas
{"title":"Small bowel imaging.","authors":"J C Lappas","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Radiologic imaging continues to play an integral role in the diagnosis and management of diseases of the small bowel. The mesenteric small intestine remains the only gastrointestinal tract segment for which diagnostic study is not principally dependent on endoscopic viewing. Because radiologists assume primary responsibility in the diagnostic evaluation of the small bowel, it is essential that methods capable of accurately demonstrating small bowel morphology are appropriately applied. Barium contrast studies and enteroclysis, in particular, remain the primary diagnostic methods in the small bowel for most clinical indications. Cross-sectional imaging modalities often provide unique diagnostic information, but their role remains either complementary to the demonstration of surface details by barium contrast studies or directed to specific clinical circumstances that require discrete evaluation of the small bowel wall and adjacent tissues and organs.</p>","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 3","pages":"32-8"},"PeriodicalIF":0.0,"publicationDate":"1992-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12749165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gastrointestinal sonography. 胃肠超声。
Current opinion in radiology Pub Date : 1992-04-01
S R Wilson, W A Thurston
{"title":"Gastrointestinal sonography.","authors":"S R Wilson,&nbsp;W A Thurston","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The contribution of routine gray-scale sonography in the gastrointestinal tract has been augmented by the addition of duplex Doppler and, more recently, color Doppler imaging. Many recent reports focus on the deep abdominal applications of these modalities. Although duplex tracing remains the basis of most diagnoses, the use of color Doppler imaging has facilitated the performance of these examinations. Endosonography performed with high-resolution transducers in the lumen of the gut is another exciting and expanding area. Staging of gastrointestinal tumors is the major application of this modality. Future sonographic developments include the promise of contrast agents.</p>","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 2","pages":"69-77"},"PeriodicalIF":0.0,"publicationDate":"1992-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12722504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Low-osmolality versus high-osmolality contrast material. 低渗透压对比高渗透压对比材料。
Current opinion in radiology Pub Date : 1992-04-01
W T Korn, M A Bettmann
{"title":"Low-osmolality versus high-osmolality contrast material.","authors":"W T Korn,&nbsp;M A Bettmann","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Universal use of low-osmolality contrast agents for intravascular diagnostic procedures has been limited to a large extent by the high cost of these agents, which is generally 10 to 20 times that of high-osmolality contrast media. The question for the radiologist, therefore, is the definition of selected populations and situations for the use of low-osmolality agents to achieve the greatest patient benefit at the least cost. The authors examine controversial issues including the incidence of significant contrast reactions, the definition and incidence of nephrotoxicity, and the effects of contrast media on coagulability.</p>","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 2","pages":"9-15"},"PeriodicalIF":0.0,"publicationDate":"1992-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12722507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ultrasound. 超声波。
Current opinion in radiology Pub Date : 1992-04-01
{"title":"Ultrasound.","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 2","pages":"133-46"},"PeriodicalIF":0.0,"publicationDate":"1992-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12722609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Magnetic resonance imaging of the genitourinary tract. 泌尿生殖道的核磁共振成像
Current opinion in radiology Pub Date : 1992-04-01
P L Choyke
{"title":"Magnetic resonance imaging of the genitourinary tract.","authors":"P L Choyke","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Advances have occurred in practically all aspects of MR imaging of the genitourinary tract. Fat-suppressed T1 weighting and dynamic-enhanced imaging are two new methods for evaluating renal and adrenal masses. MR angiography techniques are beginning to depict anatomy with sufficient detail to be considered clinical tools. Bladder cancers can be better staged with enhanced high-resolution images, especially when combined with surface coils. Endorectal surface coils continue to provide dramatic images of the prostate and have significantly improved local staging with MR imaging. MR imaging is proving superior to all other techniques in staging endometrial and cervical cancers, and high-resolution, fat-suppressed, fast spin-echo techniques will undoubtedly further improve the diagnostic utility of this modality.</p>","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 2","pages":"24-31"},"PeriodicalIF":0.0,"publicationDate":"1992-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12722611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Neonatal and pediatric sonography. 新生儿和儿童超声检查。
Current opinion in radiology Pub Date : 1992-04-01
D K Yousefzadeh
{"title":"Neonatal and pediatric sonography.","authors":"D K Yousefzadeh","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This paper reviews the contribution of sonography in assessing common and some less common neonatal and pediatric disorders. The samples reflect the strength or currently perceived weaknesses of sonography and duplex Doppler studies in both neonates and children. Controversies, when present, are highlighted to provoke thought and remind us that many of the premises on which we base our research are, themselves, still shaky. Comments are provided to encourage complementary studies by other investigators or by the original authors. Because of their significance for the practice of pediatric radiology and sonography, two studies, one adult and one experimental, are incorporated. Since there is still plenty of room for improving sonographic techniques and technology and because new developments, such as the use of contrast agents, are in the horizon, the true limitations of sonography and duplex and color Doppler is yet unknown. Therefore, because of the well-known advantages of using sonography in children, we must exhaust all our efforts, \"tricks,\" and resources as a sonographer before we subject the child to more invasive, stressful, and expensive studies. Meanwhile, knowledge of the strength of other modalities should help us avoid undue bias and single-mindedness.</p>","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 2","pages":"111-25"},"PeriodicalIF":0.0,"publicationDate":"1992-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12722608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Genitourinary radiology. 泌尿生殖器的放射学。
Current opinion in radiology Pub Date : 1992-04-01
{"title":"Genitourinary radiology.","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 2","pages":"127-33"},"PeriodicalIF":0.0,"publicationDate":"1992-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12722607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Radiology and treatment of urinary tract stone disease. 泌尿道结石疾病的放射学与治疗。
Current opinion in radiology Pub Date : 1992-04-01
W H Bush
{"title":"Radiology and treatment of urinary tract stone disease.","authors":"W H Bush","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Renal and ureteral calculi are treated primarily using extracorporeal lithotripsy, with percutaneous nephrostolithotomy retaining an important role for the treatment of large stones and complex situations. Aspects of pretherapy evaluation are reviewed. The vast majority of calculi 5 mm or less in diameter in the mid and lower ureter will pass spontaneously; in patients with acute ureteral obstruction, lower-osmolar nonionic contrast for urography caused as much discomfort as conventional high-osmolar contrast. Treatment planning for extracorporeal lithotripsy has changed in that internal stenting is no longer routinely recommended. Milk-of-calcium and calyceal diverticular stones respond poorly to extracorporeal lithotripsy. The access route used for percutaneous stone removal varies among investigators. Some advocate an intercostal approach for up to one third of patients; substantial complications occur with placement of a track above the 11th rib. Sepsis develops after percutaneous nephrostomy in up to 21% of patients, but the risk of sepsis can be decreased significantly by the administration of antibiotics during and after the procedure. Complications of extracorporeal lithotripsy include renal hematoma (especially if the patient is hypertensive or is taking aspirin), regional organ injury, and bacteremia. Although originally feared to occur frequently, hypertension occurring after or caused by extracorporeal lithotripsy was not confirmed to be a major problem. The incidence in a 2-year postlithotripsy follow-up was no greater than that for control subjects.</p>","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 2","pages":"32-8"},"PeriodicalIF":0.0,"publicationDate":"1992-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12722612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Endovaginal and translabial ultrasound in pregnancy. 妊娠期阴道内及经唇超声检查。
Current opinion in radiology Pub Date : 1992-04-01
C S Levi, E A Lyons, D J Lindsay, S C Holt, S M Dashefsky
{"title":"Endovaginal and translabial ultrasound in pregnancy.","authors":"C S Levi,&nbsp;E A Lyons,&nbsp;D J Lindsay,&nbsp;S C Holt,&nbsp;S M Dashefsky","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Endovaginal sonography provides earlier and enhanced visualization of the gestational sac and its contents than does transvesical sonography. This paper discusses the role of endovaginal sonography in common first trimester diagnostic problems, including pregnancy dating, first trimester pregnancy loss, ectopic pregnancy, and early diagnosis of fetal anomalies, and reviews the use of endovaginal color flow Doppler in the diagnosis of ectopic pregnancy. A brief discussion of the role of endovaginal and translabial sonography in the second and third trimesters is included.</p>","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 2","pages":"85-92"},"PeriodicalIF":0.0,"publicationDate":"1992-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12722506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sonographic evaluation of intrauterine growth retardation. 宫内发育迟缓的超声评价。
Current opinion in radiology Pub Date : 1992-04-01
J M Morris, B J Trudinger
{"title":"Sonographic evaluation of intrauterine growth retardation.","authors":"J M Morris,&nbsp;B J Trudinger","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The prenatal recognition of the growth-retarded fetus is important because of the associated increased perinatal morbidity. Clinical methods of assessing fetal growth are disappointing and necessitate that a high-risk group be identified for more intensive surveillance. This review discusses the role of ultrasound biometry in establishing whether a fetus is small. Behavioral characteristics of the fetus may also be assessed using real-time ultrasound. The realization that not all small fetuses are a result of growth failure has led to the development of Doppler ultrasound to identify the fetus at risk. This paper focuses on the evidence supporting the selected use of Doppler ultrasound to investigate high-risk pregnancy.</p>","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 2","pages":"102-10"},"PeriodicalIF":0.0,"publicationDate":"1992-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12722606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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