{"title":"CT angiography: principles, techniques and study optimization using 16-slice multidetector CT with isotropic datasets and 3D volume visualization.","authors":"Elliot K Fishman, Leo P Lawler","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Significant advances in computed tomography (CT) scanner technology as well as 3D imaging software and hardware have resulted in amazing improvements in CT imaging of blood vessels. CT angiography has now been incorporated into daily practice and in may cases has replaced conventional angiography. CT angiography has also resulted in new applications for CT such as coronary angiography. This article discusses the current state of the art of 3D CT angiography and reviews the literature. Extensive case examples are included.</p>","PeriodicalId":83673,"journal":{"name":"Critical reviews in computed tomography","volume":"45 5-6","pages":"355-88"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25157085","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}
{"title":"How we do it: CT of the spleen.","authors":"Karen M Horton","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":83673,"journal":{"name":"Critical reviews in computed tomography","volume":"45 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24493804","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}
{"title":"CT evaluation of living related liver donors.","authors":"Karen M Horton","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":83673,"journal":{"name":"Critical reviews in computed tomography","volume":"45 4","pages":"225-33"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24821995","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}
{"title":"Wegener's Granulomatosis: CT evolution of pulmonary parenchymal findings in treated disease.","authors":"E. Pretorius, J. Stone, D. Hellman, E. Fishman","doi":"10.1080/10408370490430331","DOIUrl":"https://doi.org/10.1080/10408370490430331","url":null,"abstract":"OBJECTIVE To determine the computed tomography (CT) evolution of various pulmonary manifestations of Wegener's Granulomatosis (WG) following appropriate pharmacologic treatment of the disease. METHODS Eleven patients with WG were identified, each of whom had had at least two CT examinations. CTs were reviewed retrospectively to identify pulmonary lesions of WG. Lesions were categorized as nodules, cavities, lobar atelectasis, pulmonary bands, or infiltrates. To determine the evolution of each individual lesion following pharmacologic treatment, the authors compared the lesions at presentation to their appearances on follow-up CT examinations. RESULTS A total of 112 lesions were identified (nodules = 70, cavities = 25, lobar atelectasis = 7, pulmonary bands = 6, infiltrates = 4). The mean time interval between CT examinations was 34 weeks (range: 3-248 weeks). Treated nodules tended to become smaller (33/70, 47%), to resolve (14/70, 20%), or to remain unchanged (8/70, 11%). However, the nodules became larger or cavitated in a substantial minority of cases (13/70, 19% and 2/70, 3%, respectively). Although more than half of the treated cavities became smaller (13/25, 52%) or resolved (1/25, 4%), many evolved into nodules (6/25, 24%) or enlarged (5/25, 20%). All cases of lobar atelectasis (14/14, 100%) and transpulmonary bands (6/6, 100%) were unchanged at follow-up. All infiltrates were either resolved (3/4, 75%) or substantially improved (1/4, 25%). CONCLUSION WG has a wide spectrum of pulmonary manifestations. Nodules, cavities, and infiltrates are among the most common lesions seen on CT. Although these findings tend to improve with treatment, mixed responses are not uncommon. Lobar atelectasis and transpulmonary bands tend not to improve, even with the occurrence of clinical disease remission.","PeriodicalId":83673,"journal":{"name":"Critical reviews in computed tomography","volume":"284 1","pages":"67-85"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76849774","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}
{"title":"CT characteristics of primary retroperitoneal neoplasms.","authors":"Amy Neville, B. Herts","doi":"10.3109/10408370490506616","DOIUrl":"https://doi.org/10.3109/10408370490506616","url":null,"abstract":"Primary retroperitoneal neoplasms account for only 0.1-0.2% of all malignancies. Retroperitoneal neoplasms are most commonly mesodermal, neurogenic or lymphatic in origin, with lymphoma, liposarcoma, leiomyosarcoma and malignant fibrous histiocytoma the vast majority of malignant primary retroperitoneal tumors. Although the radiographic features of retroperitoneal neoplasms often overlap, certain CT characteristics, pattern of spread and specific tumor prevalence among different demographic groups can help suggest the tumor type. CT is used to diagnosis and assess the size and extent of retroperitoneal tumors, as well as assess the involvement of organs and vasculature with resection in mind.","PeriodicalId":83673,"journal":{"name":"Critical reviews in computed tomography","volume":"122 1","pages":"247-70"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80179240","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}
{"title":"Primary pulmonary arterial hypertension presenting as diffuse micronodules on CT.","authors":"M. Horton, R. Tuder","doi":"10.1080/10408370490888442","DOIUrl":"https://doi.org/10.1080/10408370490888442","url":null,"abstract":"Primary pulmonary arterial hypertension is a rare lethal disease that typically presents radiographically with enlarged central pulmonary arteries, pruning of the peripheral vasculature, and cardiomegaly but clear lung fields. Although it is a disease of unknown etiology, primary PAH has been associated with anorexigen use. We present a case of pulmonary arterial hypertension in a woman with a history of fenfluramine and phentermine use who presented with diffuse micronodules on computed tomography scan. Lung biopsy confirmed the micronodules were radiographic manifestations of extensive diffuse plexogenic arterial lesions. This report represents an unusual radiographic presentation of anorexigen related pulmonary arterial hypertension, and to our knowledge, the first case reported as presenting with diffuse micronodules on high resolution computed tomography scan.","PeriodicalId":83673,"journal":{"name":"Critical reviews in computed tomography","volume":"8 1","pages":"335-41"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77210639","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}
{"title":"Magnetic resonance imaging and proton magnetic resonance spectroscopy of intracranial epidermoid tumors.","authors":"J. Nguyen, N. Ahktar, Pablo N Delgado, L. Lowe","doi":"10.3109/10408370490903543","DOIUrl":"https://doi.org/10.3109/10408370490903543","url":null,"abstract":"Intracranial epidermoid tumors or cysts are considered benign lesions. Differentiation of epidermoid tumors from arachnoid cysts is important for appropriate patient care because the treatment is different for each lesion. Arachnoid cysts can appear very similar to epidermoid tumors on computed tomography (CT). Epidermoid tumors can grow in the cerebellopontine angle (CPA) cistern, the most common location of these lesions, resulting in trigeminal neuralgia and facial paralysis. Treatment for epidermoid tumors is exclusively surgery. Arachnoid cyst, on the other hand, is a benign condition that rarely produces symptoms. Recent advances in magnetic resonance imaging (MRI) have allowed more accurate imaging diagnosis of epidermoid tumors. This article reviews the recent advances in MRI using conventional T1W, post-contrast T1W, T2W, steady-state free precession imaging, fluid-attenuated inversion recovery (FLAIR), diffusion-weighted imaging (DWI), and proton magnetic resonance spectroscopy (MRS) in the imaging diagnosis of epidermoid tumors.","PeriodicalId":83673,"journal":{"name":"Critical reviews in computed tomography","volume":"8 1","pages":"389-427"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87252411","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}
{"title":"Helical single and multidetector row CT with three-dimensional volume rendering of the young hip.","authors":"Leo P Lawler, Paul Sponsellar, Elliot K Fishman","doi":"10.3109/10408370490450221","DOIUrl":"https://doi.org/10.3109/10408370490450221","url":null,"abstract":"<p><p>The complex ball and socket hip joint requires multiple projections for complete assessment. Though these have traditionally been acquired using multiple plain films, appropriately post-processed helical CT data can provide a comprehensive evaluation of congenital and acquired hip conditions from a single study.</p>","PeriodicalId":83673,"journal":{"name":"Critical reviews in computed tomography","volume":"45 2","pages":"111-45"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10408370490450221","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24586868","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}
Manjiri K Dighe, Shawn Parnell, Matthew M Yeh, Tasneem Lalani
{"title":"Hepatic epitheloid hemangioendothelioma: multiphase CT appearance and correlation with pathology.","authors":"Manjiri K Dighe, Shawn Parnell, Matthew M Yeh, Tasneem Lalani","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Epitheloid hepatic hemangioendothelioma was defined as a specific entity by Weiss and Enzinger in 1982. Histologically, this tumor originates from vascular endothelial cells and spindle cells. We report 3 cases of this rare neoplasm that presented to our institution over the past 3 years and briefly review the pathologic and imaging findings on MDCT (multiphase detector computed tomography).</p>","PeriodicalId":83673,"journal":{"name":"Critical reviews in computed tomography","volume":"45 5-6","pages":"343-54"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25157084","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}
{"title":"Computed tomography assessment of lung structure and function in pulmonary edema.","authors":"P Scillia, A A Bankier, P A Gevenois","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>By definition pulmonary edema is an abnormal accumulation of water in the lung. Consequently, the computed tomography (CT) appearance of pulmonary edema reflects the sequence of this accumulation. In early hydrostatic pulmonary edema, CT shows vascular engorgement and peribronchovascular cuffing that increases with the severity of edema and that is associate in late stage, with consolidations. In acute respiratory distress syndrome (ARDS), CT shows the proportion of injured parenchyma and depicts associated alterations as parenchymal infiltrate and consolidation, pleural effusion, pneumothorax. These merely morphological findings can be complemented with data from objective CT analysis of the lung parenchyma. Indeed CT can assess lung water noninvasively. Correlated with hydrodynamic parameter, these objective measurements show that the increase of lung density parallels parenchymal fluid overload. These data also show that the occurrence of ground glass opacities can precede the hemodynamic evidence of edema.</p>","PeriodicalId":83673,"journal":{"name":"Critical reviews in computed tomography","volume":"45 5-6","pages":"293-307"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25157081","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}