Abstract：
:The objectives of this study were to evaluate the influence on image quality and dose to the patient and operator of various equipment settings for percutaneous coronary intervention (PCI), and to optimize the set-up. With an Alderson phantom, different settings, such as projection, protective screens, filtration, image intensifier size and collimation, were evaluated. Kerma-area product (KAP) was recorded as a measure of patient dose and scattered radiation was measured with an ionization chamber. Effective dose for a standardized PCI procedure was measured with thermoluminescent dosimeters inside the phantom. Image quality was evaluated with a contrast-detail phantom. Based on these findings, the equipment set-up was optimized to a low fluoroscopy dose rate with a sufficient image quality. Several operating parameters affected dose, particularly scattered radiation. The optimization reduced the fluoroscopy KAP rate from 44 to 16 mGy cm(2)/s using 15 cm of acrylic. The effective dose was reduced from 13 to 4.6 mSv for a standardized PCI procedure. Radiation dose to patient and operator in PCI is heavily dependent on both equipment set-up and operating parameters which can be influenced by the operator. With a careful optimization, a large reduction of radiation dose is possible.
journal_name
Eur Radioljournal_title
European radiologyauthors
Geijer H,Beckman KW,Andersson T,Persliden Jdoi
10.1007/s00330-001-1237-6subject
Has Abstractpub_date
2002-10-01 00:00:00pages
2571-81issue
10eissn
0938-7994issn
1432-1084journal_volume
12pub_type
杂志文章abstract：OBJECTIVES:To evaluate the MRI macroscopic and microscopic parameters of mesorectal vasculature in rectal cancer patients. METHODS:Thirteen patients with rectal adenocarcinoma underwent a dynamic contrast-enhanced MRI at 1.5 T using a blood pool agent at the primary staging. Mesorectal macrovascular features, i.e., th...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-015-3955-1
更新日期：2016-05-01 00:00:00
abstract：AIM:To describe the effect of hepatobiliary-specific MR imaging contrast agent (HBCA) administration on the signal intensity of peritoneal and pleural fluid effusions on T1-weighted MR images. MATERIALS AND METHODS:From October 2015 to May 2016 139 patients (mean 60±10 years old, 69 % males) with peritoneal or pleural...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-017-5261-6
更新日期：2018-07-01 00:00:00
abstract：:This study was designed to compare the incidence of mechanical, thrombotic and infective complications in transjugular (IJV) and axillosubclavian (SCV) central venous catheters (CVC) in patients with hematological malignancy. In a prospective observational trial, 131 consecutive patients were classified into two group...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-005-2641-0
更新日期：2005-06-01 00:00:00
abstract：:We investigated the consequence of repeated transcatheter arterial chemoembolization (TACE) for coexisting small hepatic hemangioma in the treatment of patients with hepatocellular carcinomas and describe the imaging features of embolized hemangioma on the follow-up Lipiodol CT and MR. Six of 431 patients with biopsy-...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-005-0074-4
更新日期：2006-06-01 00:00:00
abstract：:The increasing availability of high-field (3 T) MR scanners requires adapting and optimizing clinical imaging protocols to exploit the theoretically higher signal-to-noise ratio (SNR) of the higher field strength. Our aim was to establish reliable and stable protocols meeting the clinical demands for imaging the neuro...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-003-1984-7
更新日期：2003-09-01 00:00:00
abstract：:Our objective was to evaluate, in a routine clinical setting, the role of spiral CT as a second procedure in patients with clinically suspected pulmonary embolism (PE) and abnormal perfusion scan. We prospectively studied the role of spiral CT in 279 patients suspected of PE. All patients started their diagnostic algo...
journal_title：European radiology
pub_type： 杂志文章,多中心研究
doi：10.1007/s00330-002-1709-3
更新日期：2003-07-01 00:00:00
abstract：:The aim of this study was to describe the MRI findings and clinical observations in a fatigue stress fracture of the sacrum. In this retrospective study, 380 conscripts (53 women, 327 men; age range 18-29 years, mean age 20.7 years) who suffered from stress-related hip pain were studied with MRI of the pelvis. The fin...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-003-1989-2
更新日期：2004-03-01 00:00:00
abstract：:The aim of this study was to assess the potential of high-speed interleaved echo-planar imaging (EPI) to achieve diagnostic image quality comparable to T2-weighted imaging in patients with brain tumors. Seventeen patients with intra-axial, supratentorial tumors (10 untreated gliomas, 7 radiated gliomas) were investiga...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s003300050854
更新日期：1999-01-01 00:00:00
abstract：:The appearances of knee injuries on MR imaging are less well documented in children than adults. Some patterns of injury are shared by both groups of patients, e. g. meniscal damage. The frequency of specific injuries may differ, e. g. anterior cruciate ligament (ACL) tear. Congenital abnormality, coexistent pathology...
journal_title：European radiology
pub_type： 杂志文章,评审
doi：10.1007/s003300050284
更新日期：1997-01-01 00:00:00
abstract：OBJECTIVES:Given the frequency of abusive fractures among infants, and the lack of research and or evidence for the phases of fracture healing seen in this age group, this study aims to describe a timetable of radiological features of fracture healing among infants in the first months of life. METHODS:We completed a r...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-016-4569-y
更新日期：2017-05-01 00:00:00
abstract：:Cardiac angiosarcoma is a rare tumour entity with a poor prognosis. Early detection is difficult but important for the further course of the disease. We report on a young patient with a tumour of unknown origin and dignity of the right atrium. Magnetic resonance imaging, CT and echocardiography were sufficient in loca...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-002-1478-z
更新日期：2002-12-01 00:00:00
abstract：OBJECTIVE:To evaluate the relationship of the liver-to-thoracic volume ratio (LiTR) by MRI with postnatal survival in foetuses with isolated congenital diaphragmatic hernia (CDH). METHODS:In 30 conservatively managed CDH foetuses and in 31 who underwent fetoscopic endoluminal tracheal occlusion (FETO), logistic regres...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-012-2709-6
更新日期：2013-05-01 00:00:00
abstract：OBJECTIVES:MRI can detect early-stage nasopharyngeal carcinoma (NPC), but the detection is more challenging in early-stage NPCs because they must be distinguished from benign hyperplasia in the nasopharynx. This study aimed to determine whether intravoxel incoherent motion diffusion-weighted imaging (IVIM DWI) MRI coul...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-019-06133-8
更新日期：2019-10-01 00:00:00
abstract：:The aim of this study was to evaluate the potential of multislice CT angiography (CTA) in detecting hemodynamically significant (> or =70%) lesions of lower extremity inflow and runoff arteries. Fifty patients (42 men, 8 women; mean age 68 years) with peripheral arterial occlusive disease underwent multislice spiral C...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-004-2289-1
更新日期：2004-09-01 00:00:00
abstract：OBJECTIVE:The complexity of anatomical structure within the breast represents the ultimate limit to signal detection on a mammogram. To increase lesion conspicuity Digital Breast Tomosynthesis (DBT) has been recently proposed and several manufacturers are currently performing clinical trials. In this study we investiga...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-010-2041-y
更新日期：2011-06-01 00:00:00
abstract：OBJECTIVES:To determine the integrative value of clinical, hematological, and computed tomography (CT) radiomic features in survival prediction for locally advanced non-small cell lung cancer (LA-NSCLC) patients. METHODS:Radiomic features and clinical and hematological features of 118 LA-NSCLC cases were firstly extra...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-018-5949-2
更新日期：2019-06-01 00:00:00
abstract：KEY POINTS:• Abbreviated MRI (AMRI) protocols consist of acquiring only a minimal number of MRI sequences for HCC surveillance with acceptable diagnostic performance compared to complete MRI.• AMRI protocol options include non-contrast AMRI, dynamic AMRI or hepatobiliary phase AMRI post gadoxetate injection.• The best ...
journal_title：European radiology
pub_type： 社论
doi：10.1007/s00330-020-06904-8
更新日期：2020-08-01 00:00:00
abstract：BACKGROUND:Transient elastography-based liver stiffness value (TE-LSV) has been investigated for assessing clinically significant portal hypertension (CSPH). The aetiology of CSPH is an important factor determining TE-LSV. There is insufficient evidence for selecting cut-off values. AIMS:This study performed a meta-an...
journal_title：European radiology
pub_type： 杂志文章,meta分析
doi：10.1007/s00330-018-5478-z
更新日期：2018-12-01 00:00:00
abstract：OBJECTIVE:To evaluate the integrity of endometrial enhancement after magnetic resonance imaging-guided high-intensity focused ultrasound (MR-HIFU) ablation of submucosal uterine fibroids based on contrast-enhanced MRI findings, and to identify the risk factors for endometrial impairment. METHODS:In total, 117 submucos...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-017-4765-4
更新日期：2017-09-01 00:00:00
abstract：:Percutaneous thrombectomy (PT) is an established technique for the removal of acute thrombus in occluded arteries, veins and vascular grafts. Percutaneous thrombectomy can be used as an adjunctive treatment to other methods of thrombus removal such as thrombolysis or as sole therapy. The two main methods are percutane...
journal_title：European radiology
pub_type： 杂志文章,评审
doi：10.1007/s003300101014
更新日期：2002-01-01 00:00:00
abstract：INTRODUCTION:Numerous publications have studied the regional anatomy of the carpal tunnel to define a "safe zone" to reduce the risk of perioperative neurovascular complications. This zone, located between the ulnar neurovascular bundle and the median nerve, is considered to be safe mainly because of the absence of vas...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-019-06416-0
更新日期：2020-02-01 00:00:00
abstract：OBJECTIVES:We aimed to evaluate the agreement in the detection of cerebral microbleeds (CMBs) between conventional susceptibility-weighted imaging (SWI) and fast SWI using wave-controlled aliasing in parallel imaging (CAIPI) acceleration. We also scrutinized the diagnostic agreement for intracranial lesions and compare...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-019-06574-1
更新日期：2020-04-01 00:00:00
abstract：OBJECTIVES:To establish the role of unenhanced CT in predicting the outcome of liver hydatid cysts. We sought to determine whether the presence of laminated membrane detachment (LMD) or pericyst degenerative changes (PDCs) detected on CT were reliable signs for predicting a favorable outcome of liver hydatids. METHODS...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-020-07681-0
更新日期：2021-01-16 00:00:00
abstract：OBJECTIVES:Comparison of bolus tracking with a fixed threshold versus a manual fast start for coronary CT angiography. METHODS:We retrospectively analysed 320-row coronary CT angiography of 50 patients with suspected or known coronary artery disease. Twenty-five examinations were initiated by a bolus tracking method (...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-014-3148-3
更新日期：2014-06-01 00:00:00
abstract：:Review of the literature shows no report of hibernoma of the thigh extending into the pelvis. Herein we report a case of hibernoma which appeared on CT and MR as a well-defined pelvic mass with contrast enhancement extending through the obturator foramen into the thigh. Fat was demonstrated by CT, whereas MR, using mu...
journal_title：European radiology
pub_type： 杂志文章,评审
doi：10.1007/s003300050419
更新日期：1998-01-01 00:00:00
abstract：:Intussusception represents the most common abdominal emergency in infancy. The classical clinical triad, consisting of abdominal colics, red jelly stools and a palpable mass, is only present in approximately 50% of cases, 20% of patients are symptom free at clinical presentation. Primary imaging modality of choice is ...
journal_title：European radiology
pub_type： 杂志文章,评审
doi：10.1007/s00330-003-2033-2
更新日期：2004-03-01 00:00:00
abstract：:The purpose of this study was to evaluate the achievable organ dose savings in low-dose multislice computed tomography (MSCT) of the heart using different tube voltages (80 kVp, 100 kVp, 120 kVp) and compare it with calculated values. A female Alderson-Rando phantom was equipped with thermoluminescent dosimeters (TLDs...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-005-0124-y
更新日期：2006-08-01 00:00:00
abstract：:To evaluate the efficiency of laser thermocoagulation under computed tomography (CT) guidance in the treatment of osteoid osteoma within a strictly pediatric group. Twenty-five patients aged 4 to 17 years were treated under CT by laser thermocoagulation. The nidus measured on average 10.1 mm. Pain relief was the main ...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-008-1173-9
更新日期：2009-03-01 00:00:00
abstract：:We report an uncommon case of spontaneous massive hemorrhage of the abdominal wall caused by rupture of a deep iliac circumflex (DIC) artery. Enhanced computed tomography (CT) demonstrated a marked extravasation in a huge hematoma of the abdominal wall. Although a pelvic arteriogram demonstrated no extravasation, a su...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s003300050432
更新日期：1998-01-01 00:00:00
abstract：:Our purpose was to evaluate the ability of diffusion tensor imaging (DTI) to characterize cervical spinal cord white matter (WM) in patients with multiple sclerosis (MS). DTI were obtained in 21 MS patients and 21 control subjects (CS). Regions of interest (ROIs) were placed at C2/3, C3/4, and C4/5 within the right, l...
journal_title：European radiology
pub_type： 杂志文章
doi：10.1007/s00330-007-0672-4
更新日期：2007-10-01 00:00:00
