Abstract：
:The recent advent of multislice-scanning is the first real quantum leap in computed tomography since the introduction of spiral CT in the early 90s. We discuss basic theoretical considerations important for the design of multislice scanners. Then, specific issues, like the design of the detector and spiral interpolation schemes are addressed briefly for the SOMATOM PLUS 4 Volume Zoom. The theoretical concepts are validated with phantom measurements. We finally show the large potential of the new technology for clinical applications. The concurrent acquisition of multiple slices results in a dramatic reduction of scan time for a given scan technique. This allows scanning volumes previously inaccessible. Similarly, given volumes can be scanned at narrower collimation, i.e. higher axial resolution in a given time. From data acquired at narrow collimation, both high-resolution studies and standard images can be reconstructed in the so-called Combi-Mode. This on the one hand reduces dose exposure to the patient because repeated scanning of a patient is no longer required. On the other hand, standard reconstructions benefit from narrow collimation as Partial Volume Artifacts are drastically suppressed. The rotational speed of 0.5 s of the SOMATOM PLUS 4 Volume Zoom furthermore opens up a whole range of new applications in cardiac CT. For the first time, virtually motion-free images can be acquired even for large volumes in a single breathhold by the combination of fast rotation and ECG triggering, respectively gating. We explain the underlying concepts and present initial results. The paper concludes with a brief discussion of the impact of the new technique on image display and postprocessing.
journal_name
Eur J Radioljournal_title
European journal of radiologyauthors
Klingenbeck-Regn K,Schaller S,Flohr T,Ohnesorge B,Kopp AF,Baum Udoi
10.1016/s0720-048x(99)00086-8keywords:
subject
Has Abstractpub_date
1999-08-01 00:00:00pages
110-24issue
2eissn
0720-048Xissn
1872-7727pii
S0720-048X(99)00086-8journal_volume
31pub_type
杂志文章abstract：:Apoptosis plays an important role in cancer. Mechanisms hindering its action are implicated in a number of malignancies. Also, the induction of apoptosis plays a pivotal role in non-surgical cancer treatment regimes such as irradiation, chemotherapy, or hormones. Recent advanced in imaging science have made it now pos...
journal_title：European journal of radiology
pub_type： 杂志文章,评审
doi：10.1016/j.ejrad.2005.03.016
更新日期：2005-11-01 00:00:00
abstract：PURPOSE:To prospectively evaluate the diagnostic performance of 64-section multidetector computed tomography (MDCT) to detect significant coronary artery stenosis using conventional coronary angiography (CCA) as the reference standard. MATERIALS AND METHODS:Institutional Review Board approval and informed consent were...
journal_title：European journal of radiology
pub_type： 临床试验,杂志文章
doi：10.1016/j.ejrad.2007.01.009
更新日期：2007-06-01 00:00:00
abstract：OBJECTIVE:To quantitatively evaluate the signal intensity of the biliary tract in gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance (MR) imaging and to investigate the effect of liver function on the signal intensity of the biliary tract. MATERIALS AND METHODS:A tota...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2009.08.008
更新日期：2011-02-01 00:00:00
abstract：BACKGROUND:Parenchymal enhancement and fibroglandular tissue on breast MRI in women with high genetic risk: are changes before and after risk-reducing salpingo-oophorectomy associated with breast cancer risk? OBJECTIVE:To evaluate changes in the level of background parenchymal enhancement (BPE) and amount of fibroglan...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2018.10.030
更新日期：2018-12-01 00:00:00
abstract：INTRODUCTION:To identify liver stiffness (LS) cut-off values assessed by means of 2D-Shear Wave Elastography (2D-SWE) for predicting different stages of liver fibrosis, considering Transient Elastography (TE) as the reference method. METHODS:Our prospective study included 383 consecutive subjects, with or without hepa...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2013.12.011
更新日期：2014-03-01 00:00:00
abstract：PURPOSE:To evaluate long-term results of treatment of benign bile duct strictures. MATERIALS AND METHODS:From February 1994 to November 2005, 21 patients (9 men, 12 women) with median age of 50.6 years (range 27-77 years) were indicated to percutaneous treatment of benign bile duct stricture. Stricture of hepatic duct...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2007.01.032
更新日期：2007-05-01 00:00:00
abstract：:Phlebography has proved to be the most reliable method to diagnose a deep venous thrombosis of a lower leg. In this study it is attempted to evaluate the accuracy of thermography in diagnosing a deep venous thrombosis. The series comprises 125 patients which were investigated with thermography and phlebography. A diag...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：
更新日期：1985-11-01 00:00:00
abstract：:Colon interposition was carried out in 12 patients with oesophageal carcinoma and on 38 patients with benign oesophageal disease an average of 71 months before the radiographic examination. Various ischaemic changes including "jejunization", loss of haustration and stricture formation were observed in 15 cases. In 12 ...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：
更新日期：1987-11-01 00:00:00
abstract：:Fractures involving the articulating surfaces of bone are a common cause of joint disability. Management options are as numerous as the terms used to describe these lesions. These terms include osteochondral, transchondral, flake or chip fractures as well as osteochondrosis (osteochondritis) dissecans. The understandi...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/0720-048x(95)00707-w
更新日期：1996-03-01 00:00:00
abstract：OBJECTIVE:To compare two different expandable electrodes in radiofrequency ablation of renal cell carcinoma. METHODS:Percutaneous ablation was performed at two centers using either an expandable 7F umbrella-shaped LeVeen probe (diameter 2-4 cm) and a 200-W generator (group A), or an expandable Starburst XL electrode w...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2006.04.005
更新日期：2006-08-01 00:00:00
abstract：PURPOSE:To assess the relationship between imaging follow-up and all-cause mortality in subjects ≥65 years with and without incidental pancreatic cysts (IPC). METHODS AND MATERIALS:Patients ≥65 years with abdominal CT/MR 11/1/01-11/1/11 were included. IPC group included subjects with IPC on CT/MR report; No-IPC group ...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2016.03.008
更新日期：2016-06-01 00:00:00
abstract：INTRODUCTION:To compare the diagnostic performance and inter-observer reproducibility of CT and MRI in detecting colorectal liver metastases (CRLM) of observers with different levels of experience. MATERIALS AND METHODS:Data from 51 CT and 54 MRI examinations of 105 patients with CRLM were analysed. Intraoperative and...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2014.07.005
更新日期：2014-10-01 00:00:00
abstract：OBJECTIVE:To evaluate the ultrasonography (US) features of Alagille syndrome (ALGS), as compared with biliary atresia (BA) or neonatal hepatitis (NH). METHODS:Our study included 23 ALGS, 75 BA and 70 NH patients. The initial US images were retrospectively reviewed for gallbladder (GB) morphology with systemic classifi...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2016.03.023
更新日期：2016-06-01 00:00:00
abstract：PURPOSE:To evaluate whether pancreatic magnetic resonance imaging-proton density fat fraction (MRI-PDFF) correlates with histological pancreatic fat fraction and its possible usefulness as a biomarker of pancreatic cancer compared with pancreatic index (PI) using computed tomography (CT number of the pancreas divided b...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2019.06.024
更新日期：2019-09-01 00:00:00
abstract：:The introduction to the application of (1)H MR spectroscopy for clinical and research studies of mesial temporal and extratemporal epilepsies is done. The techniques of single voxel and spectroscopic imaging are discussed and the analysis of (1)H MR spectra together with basic metabolic descriptions is presented. ...
journal_title：European journal of radiology
pub_type： 杂志文章,评审
doi：10.1016/j.ejrad.2008.03.004
更新日期：2008-08-01 00:00:00
abstract：OBJECTIVES:To prospectively estimate the feasibility and reproducibility of dynamic oxygen-enhanced magnetic resonance imaging (OE-MRI) in the assessment of regional oxygen delivery, uptake and washout in asthmatic lungs. MATERIALS AND METHODS:The study was approved by the National Research Ethics Committee and writte...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2014.10.021
更新日期：2015-02-01 00:00:00
abstract：AIM:The aim of this study was to compare the diagnostic accuracy of fully diagnostic, contrast-enhanced whole-body FDG-PET/CT and whole-body MRI for detection of bone metastases in patients suffering from newly diagnosed non-small cell lung cancer and malignant melanoma. MATERIAL AND METHODS:109 consecutive non-small ...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2009.10.031
更新日期：2011-06-01 00:00:00
abstract：BACKGROUND:Gliomas are the most common primary brain tumors in adults, in some cases, radiotherapy may be the preferred treatment option especially for elderly people who cannot endure surgery. Therefore, it is necessary to evaluate the effects of radiotherapy on glioma. Arterial spin labeling (ASL) is an MR imaging te...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2016.08.009
更新日期：2016-11-01 00:00:00
abstract：OBJECTIVES:We aimed to study the ability of contrast enhanced MRI at 1.5 T and 11C-acetate PET/CT, both individually and using fused data, to detect localized prostate cancer. METHODS:Thirty-six men with untreated prostate cancer and negative for metastatic disease on pelvic CT and bone scan were prospectively enrolle...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2011.12.043
更新日期：2012-11-01 00:00:00
abstract：INTRODUCTION:Parosteal osteosarcomas and well-differentiated liposarcomas (WDLPS) of soft tissue share several features: they are slowly progressive, locally aggressive tumors, tend to recur locally, and rarely or never metastasizes if not dedifferentiated. Their treatment is wide surgical resection. Microscopically, b...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2011.11.035
更新日期：2013-12-01 00:00:00
abstract：PURPOSE:This survey was conducted to evaluate the radiation dose delivered to the patients through different CT procedures along with its corresponding risks in Yazd province. METHOD:Data for the five most common procedures were collected from six institutions from September 2017. The effective dose for each patient w...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2020.108932
更新日期：2020-05-01 00:00:00
abstract：PURPOSE:To assess image quality and accuracy of CT angiography (CTA) for transcatheter aortic valve replacement (TAVR) planning performed with 3rd generation dual-source CT (DSCT). MATERIAL AND METHODS:We evaluated 125 patients who underwent TAVR-planning CTA on 3rd generation DSCT. A two-part protocol was performed i...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2016.11.023
更新日期：2017-01-01 00:00:00
abstract：PURPOSE:To investigate the dose reduction potential of low kV triple-rule-out dual-source CT angiography (TRO-CTA) in non-obese (BMI ≤ 25 kg/m(2)) patients with acute chest pain. MATERIALS AND METHODS:Sixty consecutive patients were randomly assigned to two different retrospectively ECG-gated TRO-CTA protocols in this...
journal_title：European journal of radiology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ejrad.2010.11.021
更新日期：2012-12-01 00:00:00
abstract：:Digital 'conventional-like' (C-L) and edge-enhanced (E-E) posteroanterior chest roentgenograms of 42 healthy individuals were ranked twice (interval of at least 5 days) in the order of increasing lung parenchymal markings (a total of four rankings). This was done by three radiologists, two residents, one medical stude...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/0720-048x(94)90275-5
更新日期：1994-05-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to analyze the utility of MRA-H in adolescents by comparing the results of imaging with surgical findings and/or clinical outcome. MATERIAL AND METHODS:After obtaining appropriate IRB approval, the Radiologic Information System database was queried for all patients 13-18 years o...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2016.03.031
更新日期：2016-06-01 00:00:00
abstract：PURPOSE:DCE MRI is a functional imaging modality, which is widely acknowledged to be linked to microvessel density in tissues. Therefore, it might be able to predict vessels in tumors. The present study sought to elucidate possible associations between microvessel density and histogram parameters in head and neck squam...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2019.108669
更新日期：2019-11-01 00:00:00
abstract：OBJECTIVES:We aimed to compare pain experienced during screening mammography, using three different compression paddles: a fixed paddle standardizing pressure (study paddle), a flexible, and a fixed paddle. MATERIAL AND METHODS:Using a numeric rating scale (NRS), ranged 0-10, we collected information on pain experienc...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2019.04.006
更新日期：2019-06-01 00:00:00
abstract：PURPOSE:To evaluate the detectability and signal intensities of small ( journal_title：European journal of radiology pub_type： 杂志文章 doi：10.1016/j.ejrad.2007.02.023 更新日期：2007-10-01 00:00:00
abstract：PURPOSE:To determine whether imaging parameters derived from intravoxel incoherent motion (IVIM) diffusion weighted imaging (DWI) vary according to tumor-stroma ratio(TSR) or dominant stroma type of breast cancer. METHODS:We prospectively enrolled 77 patients with breast cancer who underwent IVIM DWI on a 3.0 T MR sca...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2019.108686
更新日期：2019-11-01 00:00:00
abstract：PURPOSE:To assess pulmonary abnormalities in patients with primary Sjogren's syndrome (PSS) using high-resolution computed tomography (HRCT). MATERIAL AND METHODS:The HRCT scans of 24 patients with the diagnosis PSS were retrospectively reviewed regarding the presence, extension and distribution of 16 pathological fin...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2004.01.006
更新日期：2004-11-01 00:00:00
