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European Journal of Radiology Open

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https://www.readbyqxmd.com/read/28725661/assessment-of-stereotactic-radiosurgery-treatment-response-for-brain-metastases-using-mri-based-diffusion-index
#1
Zengai Chen, Jinyan Zu, Lei Li, Xiaojie Lu, Jianming Ni, Jianrong Xu
INTRODUCTION: To investigate the clinical predictive values of the apparent diffusion coefficient (ADC) as a biomarker in radiation response of brain metastases. METHOD: Forty-one patients with brain metastases treated with stereotactic radiosurgery (SRS) were imaged at baseline, one month post SRS, and six months post SRS using diffusion weighted MRI. The mean of ADC for metastases and tumor volume was calculated. A diffusion index (DI) was generated using the sum of 1/ADC among all the voxels in a tumor...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28702479/image-quality-and-contrast-agent-exposure-in-cardiac-computed-tomography-angiography-prior-to-transcatheter-aortic-valve-implantation-procedures-using-different-acquisition-protocols
#2
Nina P Hofmann, Moritz Schuetz, Raffi Bekeredjian, Sven Pleger, Emanuel Chorianopoulos, Sorin Giusca, Florian André, Gitsios Gitsioudis, Christopher Schlett, Hans-Ulrich Kauczor, Hugo A Katus, Grigorios Korosoglou
BACKGROUND: ECG-gated cardiac computed tomography angiography (CCTA) has found widespread use for prosthesis sizing before transcatheter aortic valve implantation (TAVI). However, still little data exists on the optimal scan-strategy in such patients. We hypothesized that prospectively triggered CCTA can enable the visualization of aortic valve structures and peripheral arteries with lower radiation and contrast agent exposure in patients considered for TAVI compared to retrospectively gated protocols...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28616448/adaptive-statistical-iterative-reconstruction-improves-image-quality-without-affecting-perfusion-ct-quantitation-in-primary-colorectal-cancer
#3
D Prezzi, V Goh, S Virdi, S Mallett, C Grierson, D J Breen
OBJECTIVES: To determine the effect of Adaptive Statistical Iterative Reconstruction (ASIR) on perfusion CT (pCT) parameter quantitation and image quality in primary colorectal cancer. METHODS: Prospective observational study. Following institutional review board approval and informed consent, 32 patients with colorectal adenocarcinoma underwent pCT (100 kV, 150 mA, 120 s acquisition, axial mode). Tumour regional blood flow (BF), blood volume (BV), mean transit time (MTT) and permeability surface area product (PS) were determined using identical regions-of-interests for ASIR percentages of 0%, 20%, 40%, 60%, 80% and 100%...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28540347/interdisciplinary-management-of-head-and-neck-vascular-anomalies-clinical-presentation-diagnostic-findings-and-minimalinvasive-therapies
#4
REVIEW
Maliha Sadick, Walter A Wohlgemuth, Roland Huelse, Bettina Lange, Thomas Henzler, Stefan O Schoenberg, Haneen Sadick
OBJECTIVES: Vascular anomalies are included in the 30 000 rare diseases worldwide affecting less than 5/10 000 people. Depending on their morphology and biological properties, they can cause varied disorders with organ involvement. Almost 60% of vascular anomalies have a predilection for the head and neck region in children. Clinical and scientific effort to establish interdisciplinary management concepts for vascular anomalies is increasing worldwide. METHODS: Especially in the head and neck region, clinical impairment and organ dysfunction is associated with cosmetic issues that may represent a physical and psychological issue for the patient...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28516133/transcatheter-arterial-chemoembolization-of-hepatocellular-carcinoma-in-patients-with-celiac-axis-occlusion-using-pancreaticoduodenal-arcade-as-a-challenging-alternative-route
#5
Noha M Attia, Moustafa H M Othman
INTRODUCTION: Celiac axis occlusion is a challenging condition when catheterization of the hepatic artery is required for chemoembolization of hepatocellular carcinoma (HCC). As a result, the hepatic artery has to be catheterized through the pancreaticoduodenal arcades (PDA) and the gastroduodenal artery (GDA) from the superior mesenteric artery (SMA) which is a tortuous course with acute angles and small caliber branches. OBJECTIVE: To assess new techniques for facilitating catheterization of the tortuous PDA and the GDA to reach the proper hepatic artery (PHA) and tumor-feeding branches in patients with celiac axis occlusion undergoing chemoembolization of HCC...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28508024/pilot-study-of-endoscopic-retrograde-3-dimensional-computed-tomography-enteroclysis-for-the-assessment-of-crohn-s-disease
#6
Hiroki Tanabe, Takahiro Ito, Yuhei Inaba, Katsuyoshi Ando, Yoshiki Nomura, Nobuhiro Ueno, Shin Kashima, Kentaro Moriichi, Mikihiro Fujiya, Toshikatsu Okumura
PURPOSE: Endoscopic retrograde ileography (ERIG) is developed in our institute and applied clinically for the diagnosis and assessment of the Crohn's disease activity. We have further improved the technique using 3-dimensional - computed tomography enteroclysis (3D-CTE) and conducted a retrospective study to determine the feasibility and the diagnostic value of endoscopic retrograde 3D-CTE (ER 3D-CTE) in Crohn's disease patients in a state of remission. METHODS: Thirteen Crohn's patients were included in this pilot study...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28459087/mri-rare-finding-absence-of-the-left-liver-lobe
#7
Isabella Ceravolo, Daniele Guerrieri, Marina De Vargas Macciucca, Flaminia De Cristofaro, Giuseppe Panzironi
We report a rare case of left liver lobe absence in an 80-year-old male patient discovered during an MRI scan. The main imaging features of this condition are briefly reviewed, together with its pathogenesis and the most common associations and differential diagnoses.
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28443292/measurements-of-metastatic-renal-cell-tumours-as-determined-by-diffusion-weighted-imaging-or-computed-tomography-are-in-close-agreement-a-pilot-study
#8
J Farnebo, C Suzuki, R Vargas-Paris, P Sandström, L Blomqvist
BACKGROUND: Diffusion weighted magnetic resonance imaging (DWI) provides both functional and anatomical information regarding tumours but can also be used for tumour detection. Today, tumour treatment response in clinical trials is mainly assessed on Computed Tomography (CT) using established criteria. Despite availability of dedicated software, CT still requires significant manual work for selection and measurement in treatment response evaluation of solid tumours. PURPOSE: To compare the maximum diameter of tumour lesions on CT with the corresponding measurements on diffusion weighted images...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28409175/ct-arthrography-of-adhesive-capsulitis-of-the-shoulder-are-mr-signs-applicable
#9
Cerny Milena, Omoumi Patrick, Larbi Ahmed, Manicourt Daniel, Perozziello Anne, Frederic E Lecouvet, Bruno C Vande Berg, Dallaudière Benjamin
OBJECTIVE: To determine if diagnostic signs of adhesive capsulitis (AC) of the shoulder at Magnetic Resonance Imaging (MRI) and arthrography (MRA) are applicable to CT arthrography (CTA). METHODS: 22 shoulder CTAs with AC were retrospectively reviewed for features described in MR literature. The control group was composed of 83 shoulder CTA divided into four subgroups 1) normal (N = 20), 2) omarthrosis (N = 19), 3) labral injury (N = 23), and 4) rotator cuff tear (N = 21)...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28377947/the-accuracy-and-sensitivity-of-diffusion-weighted-magnetic-resonance-imaging-with-apparent-diffusion-coefficients-in-diagnosis-of-recurrent-cholesteatoma
#10
Nasr Mohamed M Osman, Ahmed Abdel Rahman, Moustafa Talaat Abdel Hakim Ali
OBJECTIVE: To evaluate the accuracy and sensitivity of diffusion-weighted magnetic resonance imaging with ADC value combined with MDCT in evaluating recurrent cholesteatoma. PATIENTS: Thirty patients (20 females and 10 males), their age ranged from 10 to 40years, had undergone a tympanomastoid surgery for a cholesteatoma of the middle ear underwent MDCT and MR DWI examination before second- or third-look surgery from May 2015 to October 2016. RESULTS: CT showed partial opacification of the tympanomastoid cavity in 10 ears and complete opacification in 21 ears...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28377946/assessing-the-validity-of-prostate-imaging-reporting-and-data-system-version-2-pi-rads-v2-scoring-system-in-diagnosis-of-peripheral-zone-prostate-cancer
#11
Eman F Dola, Osama L Nakhla, Eman A Sh Genidi
THE PURPOSE: Assessing the accuracy of multi parametric magnetic resonance (mp-MRI) after application of PI-RADS V2 for diagnosis of prostate cancer as comparison to pathological results of trans rectal ultra-sound (TRUS) guided biopsy. PATIENTS AND METHODS: 138 prostatic lesions in 23 patients were retrospectively assessed and analyzed with Trans rectal ultra-sound (TRUS) guided biopsy results. Those patients underwent multi parametric magnetic resonance (mp-MRI) with application of PI-RADS V2 reporting system...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28275657/utility-of-coronal-contrast-enhanced-fat-suppressed-flair-in-the-evaluation-of-optic-neuropathy-and-atrophy
#12
Kevin H Boegel, Andrew E Tyan, Veena R Iyer, Jeffrey B Rykken, Alexander M McKinney
BACKGROUND AND PURPOSE: Evaluating chronic sequelae of optic neuritis, such as optic neuropathy with or without optic nerve atrophy, can be challenging on whole brain MRI. This study evaluated the utility of dedicated coronal contrast-enhanced fat-suppressed FLAIR (CE-FS-FLAIR) MR imaging to detect optic neuropathy and optic nerve atrophy. MATERIALS AND METHODS: Over 4.5 years, a 3 mm coronal CE-FS-FLAIR sequence at 1.5T was added to the routine brain MRIs of 124 consecutive patients, 102 of whom had suspected or known demyelinating disease...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28275656/retroperitoneal-inflammatory-myofibroblastic-tumor-a-case-report
#13
Oliveira Carlos, Costa Rui, Estêvão Amélia, Caseiro-Alves Filipe
Inflammatory myofibroblastic tumors (IMT) were previously included in the "inflammatory pseudotumors" family, but have emerged as a distinct entity recently. The management of IMT may be challenging due to its intermediate malignant potential. We present a case of a young patient with an asymptomatic retroperitoneal mass with some imaging findings that could point to the IMT diagnosis pre-operatively. After two failed attempts to fully characterize the lesion by percutaneous and surgical biopsy, surgical resection was conducted and the final diagnosis was achieved...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28203621/comparative-study-evaluating-the-efficiency-of-cooled-and-uncooled-single-treatment-mwa-in-thyroid-nodules-after-a-3-month-follow-up
#14
Oscar Maximilian Mader, Nadine Farivar Tanha, Alexander Mader, Christian Happel, Yücel Korkusuz, Frank Grünwald
OBJECTIVE: The aim of this study was to evaluate and compare the efficacy of single-treatment cooled and uncooled microwave ablation in thyroid nodules. METHODS: Eighteen patients (11 women) with an average age of 62 years (range: 41-80) with 18 cold, mainly solid or solid thyroid nodules were treated with cooled or uncooled microwave ablation. Pain during the treatment was measured on a 10-point score. Side effects revealed by ultrasound or patients' complaints were documented...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28203620/schwannoma-of-the-tongue-a-common-tumour-in-a-rare-location-a-case-report
#15
Ines Abreu, Diogo Roriz, Pedro Rodrigues, Ângela Moreira, Cristina Marques, Filipe Caseiro Alves
Schwannoma is a benign tumour that arises from Schwann cells of the peripheral nerve sheath, and is a common tumour of the head and neck. However, intraoral location is very uncommon (only 1% of all head and neck schwannomas). We report a rare case of lingual schwannoma in a 20-year-old male patient who presented with a small, slow-growing mass over the right lateral border of the tongue with 1 year of evolution and that became recently ulcerated. The patient underwent MRI examination and complete surgical excision...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/27957519/low-dose-chest-ct-protocol-50%C3%A2-mas-as-a-routine-protocol-for-comprehensive-assessment-of-intrathoracic-abnormality
#16
Takeshi Kubo, Yoshiharu Ohno, Mizuki Nishino, Pei-Jan Lin, Shiva Gautam, Hans-Ulrich Kauczor, Hiroto Hatabu
PURPOSE: To determine the diagnostic capability of low-dose CT (50 mAs) in comparison to standard-dose CT (150 mAs). MATERIALS AND METHODS: Fifty-nine consecutive patients underwent two non-contrast chest CT scans with different current-time products (50 and 150 mAs at 120 kVp) on a 64-detector row CT scanner. Three board certified chest radiologists independently reviewed 118 series of 2 mm-thick images (2 series for each of 59 patients) in a random order...
2016: European Journal of Radiology Open
https://www.readbyqxmd.com/read/27957518/diffusion-weighted-mr-imaging-of-pancreatic-cancer-a-comparison-of-mono-exponential-bi-exponential-and-non-gaussian-kurtosis-models
#17
REVIEW
Nikolaos Kartalis, Georgios C Manikis, Louiza Loizou, Nils Albiin, Frank G Zöllner, Marco Del Chiaro, Kostas Marias, Nikolaos Papanikolaou
OBJECTIVES: To compare two Gaussian diffusion-weighted MRI (DWI) models including mono-exponential and bi-exponential, with the non-Gaussian kurtosis model in patients with pancreatic ductal adenocarcinoma. MATERIALS AND METHODS: After written informed consent, 15 consecutive patients with pancreatic ductal adenocarcinoma underwent free-breathing DWI (1.5T, b-values: 0, 50, 150, 200, 300, 600 and 1000 s/mm(2)). Mean values of DWI-derived metrics ADC, D, D*, f, K and DK were calculated from multiple regions of interest in all tumours and non-tumorous parenchyma and compared...
2016: European Journal of Radiology Open
https://www.readbyqxmd.com/read/27957517/crohn-s-disease-activity-abdominal-computed-tomography-histopathology-correlation
#18
N Paquet, J N Glickman, S M Erturk, P R Ros, J T Heverhagen, M A Patak
PURPOSE: Crohn's disease is a type of inflammatory bowel disease affecting estimated 4 million people worldwide. Therapy stratification of Crohn's disease (CD) is mainly based on the inflammatory activity being assessed by endoscopic biopsy and clinical criteria. Cross-sectional imaging allows for the assessment of structural characteristics of the entire gastrointestinal tract including small bowel loops and may provide potential non-invasive image-based biomarkers for the inflammatory activity of CD...
2016: European Journal of Radiology Open
https://www.readbyqxmd.com/read/27957516/standard-dose-vs-low-dose-ct-protocols-in-the-evaluation-of-localized-lung-lesions-capability-for-lesion-characterization-ilead-study
#19
Takeshi Kubo, Yoshiharu Ohno, Daisuke Takenaka, Mizuki Nishino, Shiva Gautam, Kazuro Sugimura, Hans Ulrich Kauczor, Hiroto Hatabu
OBJECTIVE: To determine the lesion characterization capability by low dose CT for localized lung lesions in comparison with standard dose CT. SUBJECTS AND METHODS: Approval for this study was granted by our Institutional Review Board. Fifty-two consecutive patients (36 males and 16 females, median age of 71 years.) who had CT examinations for evaluation of lung lesions comprise the study population. Two chest CT scans were performed with current time product of 50 and 150 mAs at 120 kVp, with the same scan length with a 16 detector-row CT scanner...
2016: European Journal of Radiology Open
https://www.readbyqxmd.com/read/27900349/symptomatic-bilateral-coronary-artery-fistula-to-pulmonary-artery-in-elderly-patient
#20
Francisco Pereira da Silva, Paulo Donato, Henrique Donato, Elisabete Jorge, Maria Joao Ferreira, Filipe Caseiro-Alves
We report the imaging findings of an uncommon coronary vascular termination anomaly, with fistula to the pulmonary artery. This 70 year old female patient presented unstable angina, showing a coronary artery fistula depicted in coronary angiogram from the left coronary to the pulmonary artery, with no significant atherosclerotic pathology. Due to development of ventricular tachycardia in stress echocardiogram examination, she was proposed for coronary fistula closure. Coronary CT was performed for procedure planning and allowed the identification of a second unsuspected fistula from the right coronary to the right pulmonary artery...
2016: European Journal of Radiology Open
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