Abstract:
INTRODUCTION:The three-dimensional (3D) reconstruction of ultrasound images has become a widespread option in ultrasound equipment. Specific softwares have become available and 3D reconstruction feasible since the early 1990s, particularly since 1994. POSSIBLE CLINICAL APPLICATIONS:Several clinical applications are feasible in all parenchymatous organs (mainly the liver and prostate), hollow viscera (e.g. the bladder and gallbladder), peripheral vessels (supra-aortic trunks and limb vessels) and central (the aorta and iliac arteries) or cerebral vessels. Moreover, tumoral vessels in parenchymatous organs can be reconstructed, and even the fetus in the uterine cavity, with excellent detailing. The recent introduction of echocontrast agents and second harmonic imaging has permitted to study normal and abnormal peripheral, central and parenchymatous vessels, with similar patterns to those obtained with digital angiography. The spatial relationships between the vascular structures of the liver, kidney and placenta were studied with 3D ultrasound angiograms. The applications of this new technique include the analysis of vascular anatomy and the potential assessment of organ perfusion. THE LATEST APPLICATIONS--INTRAVASCULAR STUDIES: Some catheters with an ultrasound transducer in the tip have been tested for intravascular studies. Just like conventional transducers, they provide two-dimensional (2D) images which are then postprocessed into longitudinal 3D or volume reconstructions. The former resemble angiographic images and can be viewed 3D rotating the image along its longitudinal axis. Volume images, which are more complex and slower to obtain, can be rotated on any spatial plane and provide rich detailing of the internal vascular lumen. The clinical importance of intravascular ultrasound with 3D volume reconstructions lies in the diagnosis of vascular conditions and the assessment and monitoring of intravascular interventional procedures--e.g. to detect inaccurate deployment of intravascular stents and endoluminal grafts during the maneuver. Three-dimensional reconstructions involve geometric data assembly and volumetric interpolation of a spatially related sequence of tomographic cross sections generated by an ultrasound catheter withdrawn at a constant rate through a vascular segment of interest, resulting in the display of a straight segment. Therefore particular care is needed and there are some useful hints to avoid mistakes. CONCLUSIONS:Three dimensional reconstructions of B-mode and color Doppler images are no longer a work in progress and their clinical importance and possible applications are both established and ever-increasing. On the other hand, independent of the different types of energy used, also computed tomography and magnetic resonance 3D reconstructions are very useful from a clinical viewpoint and they have become an established routine technique for both these methods. It is very likely that 3D volume reconstructions in ultrasound will find numerous applications in the near future. They may help to increase the diagnostic confidence and to facilitate diagnosis, intraprocedure monitoring in interventional radiology and follow-up and also to reduce the number of invasive examinations with iodinated contrast agents. This could result in cutting the cost and duration of the most expensive examinations. New, although invasive, applications can be hypothesized for intravascular or intraluminal catheters with an ultrasound transducer inside.
journal_name
Eur J Radioljournal_title
European journal of radiologyauthors
Campani R,Bottinelli O,Calliada F,Coscia Ddoi
10.1016/s0720-048x(98)00077-1subject
Has Abstractpub_date
1998-05-01 00:00:00pages
S183-7eissn
0720-048Xissn
1872-7727pii
S0720-048X(98)00077-1journal_volume
27 Suppl 2pub_type
杂志文章,评审abstract::A simple generalization of the diffraction enhanced imaging (DEI) technique, called generalized DEI (GDEI), and its application to tomographic imaging are herein presented. In planar imaging, the GDEI algorithm combines three input images (acquired at different analyzer positions) to deliver three parametric images, p...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2008.04.026
更新日期:2008-12-01 00:00:00
abstract:OBJECTIVE:To determine the change in apparent diffusion coefficient (ADC) of uterine fibroids following uterine fibroid embolisation (UFE), and if the ADC change correlates with either volume loss or degree of contrast enhancement post-UFE. MATERIALS AND METHODS:This study was approved by our institutional review boar...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2014.05.031
更新日期:2014-09-01 00:00:00
abstract:PURPOSE:Cinematic rendering (CR), a recently launched, FDA-approved rendering technique converts CT image datasets into nearly photorealistic 3D reconstructions by using a unique lighting model. The purpose of this study was to compare CR to volume rendering technique (VRT) images in the preoperative visualization of m...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2020.108911
更新日期:2020-05-01 00:00:00
abstract:PURPOSE:Apparent Diffusion Coefficient (ADC) measurements are increasingly used for assessing breast cancer response to neoadjuvant chemotherapy although little data exists on ADC measurement reproducibility. The purpose of this work was to investigate and characterise the magnitude of errors in ADC measures that may b...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2015.05.032
更新日期:2015-09-01 00:00:00
abstract:PURPOSE:The purpose of our study was to compare signal characteristics and image qualities of MR imaging at 3.0T and 1.5T in patients with diffuse parenchymal liver disease. MATERIALS AND METHODS:25 consecutive patients with diffuse parenchymal liver disease underwent abdominal MR imaging at both 3.0T and 1.5T within ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2008.07.027
更新日期:2009-11-01 00:00:00
abstract::The different features of 821 acoustic shadows recorded during abdominal US examinations were analysed to find out whether any of the features may be used in routine work to help to identify the often invisible structure casting the shadow. A constant shadow with closely spaced high level reverberation echoes is stron...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:
更新日期:1985-05-01 00:00:00
abstract:OBJECTIVES:To assess the most optimal multi-parametric magnetic resonance imaging sequence (Mp-MRI) in determining pathological length of capsular contact (LCC) for the diagnosis of prostate cancer extraprostatic extension (EPE). METHODS:105 patients with prostate cancer who underwent Mp-MRI of prostate prior to radic...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2019.01.020
更新日期:2019-03-01 00:00:00
abstract::This is a retrospective study of a series of seven patients with pancreatic metastases studied by ultrasonography and computed tomography. They were detected during tumor staging, or in the follow-up period of over 10 years of patients with advanced known malignancy. Lesions were multiple in two patients and solitary ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/0720-048x(91)90131-e
更新日期:1991-01-01 00:00:00
abstract:PURPOSE:This study aims to explore wall enhancement characteristics of vertebrobasilar nonsaccular aneurysms (VBNAs) and their relationship to clinical symptoms. METHODS:We retrospectively analyzed VBNAs in the high resolution MR vessel wall imaging (HR-VWI) databases at two institutions. The aneurysmal basic characte...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2020.109064
更新日期:2020-08-01 00:00:00
abstract::The ocular motor nerves (OMNs) comprise the oculomotor, trochlear and the abducens nerves. According to their course, they are divided into four or five anatomic segments: intra-axial, cisternal, cavernous and intra-orbital and, for the abducens nerve, an additional interdural segment. Magnetic resonance imaging is th...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2009.05.066
更新日期:2010-05-01 00:00:00
abstract:OBJECTIVES:To evaluate patient burden and preferences for MR colonography with a limited bowel preparation and automated carbon dioxide insufflation in comparison to conventional colonoscopy. METHODS:Symptomatic patients were consecutively recruited to undergo MR colonography with automated carbon dioxide insufflation...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2014.10.006
更新日期:2015-01-01 00:00:00
abstract:PURPOSE:Evaluation of percutaneous recanalization of obstructed iliac as well as superficial femoral arteries (SFAs) in patients with peripheral arterial obstructive disease (PAOD). MATERIAL AND METHODS:The data of 195 consecutive patients with 285 obstructions of the common and or external iliac artery as well as the...
journal_title:European journal of radiology
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.ejrad.2010.04.016
更新日期:2010-07-01 00:00:00
abstract::A case is reported in which the typical radiographic appearances of acute emphysematous cholecystitis were due to acute gall bladder infarction following thrombotic occlusion of the superior mesenteric artery. ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:
更新日期:1985-05-01 00:00:00
abstract:PURPOSE:With evolving local thermal ablation technology, the clinical application of thermal ablation has been actively investigated in the treatment for renal cell carcinoma. We review the evolution and current status of radiofrequency ablation and microwave ablation for renal cell carcinoma. MATERIALS AND METHODS:Al...
journal_title:European journal of radiology
pub_type: 杂志文章,评审
doi:10.1016/j.ejrad.2010.12.056
更新日期:2012-03-01 00:00:00
abstract:INTRODUCTION:To investigate the potential correlation of the apparent diffusion coefficient assessed by diffusion-weighted MRI (DWI) and glucose metabolism determined by the standardized uptake value (SUV) at 18F-FDG PET/CT in non-small cell lung cancer (NSCLC). MATERIALS AND METHODS:18F-FDG PET/CT and DWI (TR/TE, 200...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2011.11.050
更新日期:2012-10-01 00:00:00
abstract:PURPOSE:To evaluate the influence of radiation dose settings and reconstruction algorithms on the measurement accuracy and reproducibility of semi-automated pulmonary nodule volumetry. MATERIALS AND METHODS:CT scans were performed on a chest phantom containing various nodules (10 and 12mm; +100, -630 and -800HU) at 12...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2014.01.025
更新日期:2014-05-01 00:00:00
abstract::Doppler sonography is being used routinely in evaluating the vascular structures of the native liver because of its ease of use, lower cost, easier availability, lack of need for X-ray and accuracy. Doppler sonography can well demonstrate the vascularization of liver tumors, portal vein thrombosis, portal vein abnorma...
journal_title:European journal of radiology
pub_type: 杂志文章,评审
doi:10.1016/s0720-048x(99)00112-6
更新日期:1999-10-01 00:00:00
abstract::A 28-year-old woman with primarily therapy refractory TTP was followed neuroradiologically over 6 months. Despite pronounced neurological and neuropsychiatric symptoms including hemiparesis and aphasia she had unremarkable CT scans on two occasions. Three MRI exams showed no correlate for her neurological symptoms exc...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/s0720-048x(98)00088-6
更新日期:1999-07-01 00:00:00
abstract:PURPOSE:A new macromolecular MR contrast agent, Gd-DTPA-24-cascade-polymer, was assessed for MR angiography of peritumoral vessels in rats. MATERIAL AND METHODS:High resolution 3D-SPGR (TR/TE 100/5ms, alpha = 90 degrees) angiograms were acquired in 10 Fischer rats bearing subcutaneous R3230 mammary adenocarcinomas. MR...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/0720-048x(95)00645-7
更新日期:1995-07-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2014.08.002
更新日期:2014-11-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/s0720-048x(96)01139-4
更新日期:1997-02-01 00:00:00
abstract::HSP70 promoter-driven gene therapy and inhibition of HSP90 activity with small molecule inhibitors are two shining points in a newly developed cohort of cancer treatment. For HSP70 promoters, high efficiency and heat inducibility within a localized region make it very attractive to clinical translation. The HSP90 inhi...
journal_title:European journal of radiology
pub_type: 杂志文章,评审
doi:10.1016/j.ejrad.2009.01.052
更新日期:2009-05-01 00:00:00
abstract::A double curve catheter for the left axillary artery approach to aortofemoral, selective renal and visceral angiography is described. The catheter shape enables a fast and easy catheterization of the abdominal aorta. Up till now no complications have been encountered. ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:
更新日期:1984-08-01 00:00:00
abstract::Tuberous sclerosis is an uncommon heredito-familial disease. A rare case of multiple organ involvement is reported. ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/s0720-048x(96)01074-1
更新日期:1997-07-01 00:00:00
abstract:PURPOSE:The purpose of this study was to explore the nature of lesions in the pelvis and the long tubular bones that, with MR imaging, were found to contain both fat and fluid-like signal intensity and to correlate these findings with those of radiography, histologic analysis, and clinical and radiographic follow-up. ...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2004.02.008
更新日期:2005-01-01 00:00:00
abstract::A group of 26 patients with carcinoma of the head and neck region was treated by superselective intra-arterial infusion of cisplatin (CDDP)-carboplatin (CBDCA). The tumor locations included the tongue (n = 4), oral base (n = 2), nasopharynx (n = 2), oropharynx (n = 8), hypopharynx (n = 4) and larynx (n = 4). Using the...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/0720-048x(95)00692-j
更新日期:1995-12-15 00:00:00
abstract:OBJECTIVE:To correlate CTA pulmonary artery obstruction scores (OS) with right ventricular dysfunction (RVD) and clinical outcome in patients with acute pulmonary embolism (PE). MATERIALS AND METHODS:In a prospective study of 50 patients (66 ± 12.9 years) with PE pulmonary artery OS (Qanadli, Mastora, and Mastora cent...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2011.08.014
更新日期:2012-10-01 00:00:00
abstract::A solid dynamic phantom has been constructed, which allows quantitative measurements of the signal-to-noise ratios in processed images from digital subtraction angiography (DSA) units. Profiles of silicone rubber placed in concentric circles on a plate which is rotated in the image plane generates bolus curves with fi...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/0720-048x(90)90104-j
更新日期:1990-07-01 00:00:00
abstract:PURPOSE:To assess the utility of a 2D dynamic HASTE sequence in assessment of cervical spine flexion-extension, specifically (1) comparing dynamic spondylolisthesis to radiographs and (2) assessing dynamic contact upon or deformity of the cord. METHODS:Patients with a dynamic flexion-extension sagittal 2D HASTE sequen...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2020.109447
更新日期:2021-01-01 00:00:00
abstract::Using figures from the literature and from our own case material, the diagnostic efficiency of the barium meal, computerized tomography, angiography, ERPC and biopsy have been compared in acute and chronic pancreatitis, pancreatic and papillary carcinoma and islet cell tumour. In acute pancreatitis, CT is the method o...
journal_title:European journal of radiology
pub_type: 杂志文章
doi:
更新日期:1981-03-01 00:00:00