Abstract：
OBJECTIVE:We present preliminary results of a new method (hereinafter called 'CT-clearance') to measure single kidney contrast media clearance by performing multiphasic helical CT of the kidneys. CT-clearance was calculated according to an extension of the Patlak-Plot. In contrast to prior investigators, who repeatedly measured a single slice, this method makes it possible to calculate single kidney clearance from at least three spiral CTs, utilizing the whole kidney volume. METHODS:Spiral CT of the kidneys was performed unenhanced and about 30 and 100 s after administration of about 120 ml iopromide. Sum-density of the whole kidneys and aortic density was calculated from this data. Using this data, renal clearance of contrast media was calculated by CT-clearance in 29 patients. As reference, Serum-clearance was calculated in 24 patients by application of a modified one-exponential slope model. Information on the relative kidney function was gained by renal scintigraphy with Tc99m-MAG-3 or Tc99m-DMSA in 29 patients. RESULTS:Linear regression analysis revealed a correlation coefficient of CT-clearance with Serum-clearance of r=0.78 with Cl (CT) [ml/min]=22.2+1.03 * Cl (serum), n=24. Linear regression of the relative kidney function (rkf) of the right kidney calculated by CT-clearance compared to scintigraphy results provided a correlation coefficient r=0.89 with rkf(CT)[%]=18.6+0.58 * rkf(scintigraphy), n=29. CONCLUSION:The obtained results of contrast media clearance measured by CT-clearance are in the physiological range of the parameter. Future studies should be performed to improve the methodology with the aim of higher accuracy. More specifically, better determination of the aortic density curve might improve the accuracy.
journal_name
Eur J Radioljournal_title
European journal of radiologyauthors
Hackstein N,Puille MF,Bak BH,Scharwat O,Rau WSdoi
10.1016/s0720-048x(01)00323-0keywords:
subject
Has Abstractpub_date
2001-09-01 00:00:00pages
201-8issue
3eissn
0720-048Xissn
1872-7727pii
S0720-048X(01)00323-0journal_volume
39pub_type
杂志文章abstract：PURPOSE:To define National Diagnostic Reference Levels (NDRLs) for computed tomography (CT) for Austria on adult patients. METHOD:In the course of a nationwide survey on common CT-examinations between June 2018 and November 2018, datasets were requested from all Austrian hospitals and radiology centers with CT-scanner...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2020.108863
更新日期：2020-04-01 00:00:00
abstract：PURPOSE:The purpose of this study was to evaluate the diagnostic accuracy of different related contrast material (Rel.CM) values in dual-energy computed tomography (DECT) virtual non-calcium (VNCa) images for the detection of bone marrow edema (BME) in knee. METHOD:This prospective study was approved by the institutio...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2020.109385
更新日期：2020-12-01 00:00:00
abstract：:The aim of the current study was to compare the diagnostic information obtained from a helical CT examination in low severity cervical spine trauma with that from a lateral CT scout view. We included alert and clinically stable patients, who had suffered acute blunt trauma of low or moderate severity. Their scout imag...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2009.03.024
更新日期：2010-07-01 00:00:00
abstract：OBJECTIVE:Our aim was to determine whether inward or outward movement of the secretions in the paranasal sinuses due to nose blowing after nasal decongestion has any effect on the paranasal sinus computed tomography (CT) images in patients with sinusitis and to asses whether nose blowing may result in misdiagnosis or o...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2004.04.003
更新日期：2005-02-01 00:00:00
abstract：OBJECTIVE:To evaluated the efficacy and safety of radiofrequency ablation (RFA) with intraperitoneal saline infusion. BACKGROUND:Ultrasound-guided RFA is not always feasible due to the tumor location, possible adjacent tissue damage or poor sonographic identification. PATIENTS AND METHODS:Ultrasound-guided RFA with i...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2009.03.037
更新日期：2010-06-01 00:00:00
abstract：PURPOSE:For a successful bronchoscopic lung volume reduction coil treatment it is important to place the coils in the most emphysematous lobes. Therefore assessment of the lobe with greatest destruction is essential. Our aims were to investigate the level of agreement among expert reviewers of HRCT-scans in emphysema p...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2021.109561
更新日期：2021-01-23 00:00:00
abstract：OBJECTIVE:To study the correlation between the T2 relaxation times of the patellar cartilage and morphological MRI findings of chondromalacia. METHODS:This prospective study comprises 50 patients, 27 men and 23 women suffering of anterior knee pain (mean age: 29.7, SD 8.3 years; range: 16-45 years). MRI of 97 knees we...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2014.03.007
更新日期：2014-06-01 00:00:00
abstract：OBJECTIVE:To determine if concomitant CT-guided biopsy and percutaneous fiducial seed placement in the lung can be performed in a selective patient population without increased complication or decreased success rates compared to either procedure alone. MATERIALS AND METHODS:An IRB approved retrospective analysis of 28...
journal_title：European journal of radiology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ejrad.2014.01.006
更新日期：2014-04-01 00:00:00
abstract：PURPOSE:To assess if radiofrequency ablation (RFA) and transarterial chemoembolization (TACE) may influence the evaluation of perfusion parameters obtained with CT-perfusion (CT-p) in HCC treated patients. MATERIALS AND METHODS:Thirty-three consecutive cirrhotic patients with biopsy-proven diagnosis of HCC lesions and...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2014.05.040
更新日期：2014-09-01 00:00:00
abstract：OBJECTIVE:The objective of our study was to report the clinical and imaging features of isolated dissection of the superior mesenteric artery (SMA) and describe our imaging classification of this disease entity. SUBJECTS AND METHODS:We retrospectively analyzed clinical presentation, imaging appearances and outcome of ...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2007.05.027
更新日期：2007-10-01 00:00:00
abstract：:Magnetic resonance imaging is undergoing continual and progressive evolution. To make a high quality examination, some requirements are mandatory, such as high spatial and contrast resolution to identify lesions and high temporal resolution to characterize them. We review the most important new magnetic resonance tech...
journal_title：European journal of radiology
pub_type： 杂志文章,评审
doi：10.1016/s0720-048x(98)00071-0
更新日期：1998-05-01 00:00:00
abstract：PURPOSE:To assess the additional diagnostic value of indirect CT venography (CTV) of the pelvis and upper thighs performed after pulmonary CT angiography (CTA) for the diagnosis of venous thromboembolism (VTE). MATERIALS AND METHODS:In a retrospective analysis, the radiology information system entries between January ...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2010.12.101
更新日期：2011-10-01 00:00:00
abstract：OBJECTIVE:Full field digital mammography (FFDM) is increasingly replacing screen film mammography (SFM) in breast screening programs. Interval breast cancers are an issue in all screening programs and the purpose of our study is to assess the impact of FFDM on the classification of interval breast cancers at independen...
journal_title：European journal of radiology
pub_type： 杂志文章,评审
doi：10.1016/j.ejrad.2015.03.007
更新日期：2015-06-01 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：OBJECTIVES:To compare the detectability of perfusion difference between normal and undescended testes (UDT) in young children using conventional Power Doppler Imaging (PDI) and Superb Microvascular Imaging (SMI). METHODS:We prospectively performed testicular ultrasonography including PDI and SMI for the evaluation of ...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2015.12.023
更新日期：2016-03-01 00:00:00
abstract：:Nine patients with recurrent, facial basal cell carcinoma were followed up both clinically and radiographically using a panoramic technique. A cylindrical image track was used for panoramic radiography. Five patients had bony destruction due to tumour re-occurrence, four patients had bony defects caused by surgery. Th...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：
更新日期：1984-11-01 00:00:00
abstract：:A case of mesenchymal hamartoma of the liver in an 18-month-old boy is reported. CT and US revealed a large, cystic tumour surrounded by a thick wall. In the lower portion of the tumour, a small solid component was recognized on CT. Angiography revealed marked arterial displacement, fine tumour vessels and a large rad...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：
更新日期：1983-11-01 00:00:00
abstract：:Renal venous DSA yields diagnostically adequate results in an unselected population in more than 85% of cases. Image quality is compromised predominantly by inadequate contrast enhancement, motion artifacts from the stomach and the bowel, and obesity. The effect of these factors increases with patient age. Selection o...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：
更新日期：1986-11-01 00:00:00
abstract：PURPOSE:To investigate the impact of traditional (VMI) and noise-optimized virtual monoenergetic imaging (VMI+) algorithms on quantitative and qualitative image quality, and the assessment of stenosis in carotid and intracranial dual-energy CTA (DE-CTA). MATERIALS AND METHODS:DE-CTA studies of 40 patients performed on...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2017.12.024
更新日期：2018-02-01 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：:Although magnetic resonance imaging has become the dominant modality for cross-sectional musculo-skeletal imaging, the widespread availability, speed, and versatility of computed tomography (CT) continue to make it a mainstay of emergency room (ER) diagnostic imaging. Pelvic ring and acetabular fractures occur as the ...
journal_title：European journal of radiology
pub_type： 杂志文章,评审
doi：10.1016/j.ejrad.2003.11.019
更新日期：2004-04-01 00:00:00
abstract：PURPOSE:To assess the agreement between ablative margin (AM) predicted by preablation three-dimensional ultrasonography (3D-US) and AM measured on postablation computed tomography (CT)/magnetic resonance (MR) images. METHODS:Sixty patients with 73 hepatocellular carcinoma nodules were enrolled. 3D-US data were collect...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2020.109358
更新日期：2020-12-01 00:00:00
abstract：OBJECTIVES:Various percent canal occlusion measurement methods have been used to assess the spinal canal stenosis following a thoracolumbar burst fracture. However, there are no studies performed comparing these techniques. The objective of this study was to determine the reliability of three techniques used to measure...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2007.08.020
更新日期：2008-09-01 00:00:00
abstract：:The value of CT in the staging and assessment of resectability is demonstrated in 40 patients with advanced gastric carcinoma. The accuracy of CT using the pTNM classification of gastric carcinoma was 90% in the T category, 52.5% in the N category, 80% in the M category, and 72.5% as regards the correct staging. CT es...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：
更新日期：1986-08-01 00:00:00
abstract：OBJECTIVE:The aim of our study was to determine the impact of treatment with exogenous surfactant (ES) and high frequency oscillatory ventilation (HFOV) on the radiological appearance and clinical course of hyaline membrane disease (HMD) in new-born infants. MATERIALS AND METHODS:New-born infants (18) (median weight, ...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/s0720-048x(97)00153-8
更新日期：1998-10-01 00:00:00
abstract：PURPOSE:To test a single-energy low-voltage CT protocol for pancreatic adenocarcinoma. METHODS AND MATERIALS:A total of 30 patients with pathology-proven pancreatic adenocarcinoma underwent 64-row MDCT with arterial phase at 80 kV and were compared to a similar group of 30 patients scanned with a 120 kV protocol. Scan...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2013.12.022
更新日期：2014-03-01 00:00:00
abstract：PURPOSE:To clarify whether the uptake of SPIO increases or decreases in areas of fatty change compared with surrounding areas of nonfatty change at SPIO-enhanced MR imaging. MATERIALS AND METHODS:Approval for this retrospective study was obtained from our institutional review board. This study included 14 patients wit...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2011.04.004
更新日期：2011-08-01 00:00:00
abstract：PURPOSE:This study assesses the diagnostic utility of olfactory nerve and bulb morphologies in addition to volumetric analysis in classification of different olfactory dysfunction etiologies. METHODS:106 patients presenting with olfactory loss and 17 control subjects were included. Based on detailed anamnesis, smell t...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2020.109290
更新日期：2020-11-01 00:00:00
abstract：:Post-operative paediatric cerebellar mutism syndrome (pCMS) occurs in around 25% of children undergoing surgery for cerebellar and fourth ventricular tumours. Reversible mutism is the hallmark of a syndrome which comprises severe motor, cognitive and linguistic deficits. Recent evidence from advanced neuroimaging stud...
journal_title：European journal of radiology
pub_type： 杂志文章,评审
doi：10.1016/j.ejrad.2018.09.007
更新日期：2018-11-01 00:00:00
abstract：PURPOSE:To evaluate the early enhancement of coronary atherosclerotic plaque using contrast-enhanced MR angiography (CE-MRA) and investigate the association between unstable angina pectoris (UAP) and early enhancement of the plaque. METHODS:Forty-one patients presenting with angina pectoris and demonstrating single-ve...
journal_title：European journal of radiology
pub_type： 杂志文章
doi：10.1016/j.ejrad.2010.07.020
更新日期：2011-10-01 00:00:00
