Primary diagnosis of pulmonary embolism with unenhanced MRI for patients not eligible for CTPA: Clinical outcome
ConclusionsOur method supported or altered clinical decision-making and treatment in this cohort. A diagnostic tool for PE without intravenous contrast agent or radiation is of great benefit for certain patients. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - October 4, 2019 Category: Radiology Source Type: research

Pulmonary metastases from malignant epithelioid schwannoma of the arm presenting as fast-growing subsolid nodules: Report of an unusual case
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Andrea Borghesi, Luisa Bercich, Silvia Michelini, Francesco Bertagna, Alessandra Scrimieri, Roberto MaroldiAbstractSubsolid pulmonary nodules (SSNs) may be the manifestation of benign and malignant conditions. Malignant SSNs usually correspond to the preinvasive or invasive lepidic growth of pulmonary adenocarcinomas. More rarely, malignant SSNs may be the manifestation of primitive pulmonary lymphomas or metastases from extrapulmonary malignancies. In the case of metastases from extrapulmonary malignancies, the SSNs exhibit more aggressiv...
Source: European Journal of Radiology Open - October 1, 2019 Category: Radiology Source Type: research

Imaging features of breast cancer with marked hemosiderin deposition: A case report
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Taiyo L. Harada, Kazuaki Nakashima, Takayoshi Uematsu, Takashi Sugino, Seiichirou Nishimura, Kaoru Takahashi, Yukiko Tadokoro, Tomomi Hayashi, Junichiro Watanabe, Shogo NakamotoAbstractA 63-year-old woman was referred to our hospital for breast cancer treatment. She had a large HER2-positive breast tumor on her left breast, and received neoadjuvant chemotherapy. After treatment, a shrunk spiculated mass with calcification-like high density was detected on mammography, and MRI revealed a large strong susceptibility artifact. Surgical specim...
Source: European Journal of Radiology Open - September 16, 2019 Category: Radiology Source Type: research

Overview of epidermoid cyst
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Van Trung Hoang, Cong Thao Trinh, Canh Hung Nguyen, Vichit Chansomphou, Vinay Chansomphou, Thi Tinh Tam TranAbstractEpidermoid cysts are slow-growing, painless masses that elevate the skin and often have a central punctum that represents the plugged orifice of the pilosebaceous follicle. On ultrasound, they have a round to oval structure, well-circumscribed, avascular mass located in subcutaneous tissue along with phenomena of dorsal acoustic amplification and lateral shadowing. On MRI, they have slightly hypointense signal intensity on T1...
Source: European Journal of Radiology Open - September 5, 2019 Category: Radiology Source Type: research

Two synchronous lung metastases from malignant melanoma: the same patient but different morphological patterns
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Andrea Borghesi, Andrea Tironi, Silvia Michelini, Alessandra Scrimieri, Diego Benetti, Roberto MaroldiAbstractMalignant melanoma is an aggressive cancer with a high metastatic potential. Among the multiple sites of metastatic disease, the lung is one of the most frequently involved sites. Typically, pulmonary metastases from malignant melanoma occur as solid nodules. Rarely, pulmonary involvement in metastatic melanoma occurs as subsolid nodules.The present article describes an unusual case of a patient with malignant melanoma that develop...
Source: European Journal of Radiology Open - August 14, 2019 Category: Radiology Source Type: research

Tuberculous meningomyelitis in magnetic resonance imaging: A Chinese case report
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Xingli Liu, Maoping Rui, Liang LyuAbstractTuberculous meningomyelitis is a relatively rare but serious type of nervous system tuberculosis. This disease is caused by invasion of the spinal cord or the spinal meninges tuberculosis. The early symptoms are not typical and lack specificity. It can cause early changes in the MRI. Analysis of the MRI manifestations combined with the clinical manifestations and cere- brospinal fluid examination can facilitate accurate diagnosis of the disease. Early treatment has a clear effect, we want to increa...
Source: European Journal of Radiology Open - August 10, 2019 Category: Radiology Source Type: research

Pseudoembryo associated with pseudogestational sac: A novel sonographic finding in ectopic pregnancy
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Srikanth Puttagunta, Stefanie Yan LeeAbstractIn this case report, we present a case of a hitherto undescribed "pseudoembryo" appearance in a fluid-filled endometrial cavity in ectopic pregnancy.Knowledge of this sonographic finding is clinically important, since the presence of a "pseudoembryo" could lead to the misidentification of a pseudogestational sac as an intrauterine pregnancy in the setting of ectopic pregnancy.This paper discuss reviews the pseudogestational sac and imaging findings which differentiate it from...
Source: European Journal of Radiology Open - August 8, 2019 Category: Radiology Source Type: research

Giant infrapatellar ganglion cyst of Hoffa's fat pad
We present the case of a 36-year-old woman who works as a kindergarten teacher, often she is kneeling on her knees due to the nature of the job. Since a year ago, she noticed that her right knee was swelling. She had an orthopaedic examination when she could no longer bend her knee. Inspection and palpation revealed the swelling of the anterior and anterior-lateral aspect of the knee. MRI imaging revealed a large, sharply defined, lobulated lesion of the infrapatellar fat pad. After the surgical incision, a lobular lesion was found and surgically removed. Histological analysis confirmed a ganglion cyst. (Source: European J...
Source: European Journal of Radiology Open - July 29, 2019 Category: Radiology Source Type: research

MR arthrography versus conventional MRI and diagnostic arthroscope in patients with chronic wrist pain
ConclusionMRA can replace both MRI and diagnostic arthroscopy in detecting causes of chronic wrist pain. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - July 23, 2019 Category: Radiology Source Type: research

Corrigendum to “Is there a role for perfusion imaging in assessing treatment response following ablative therapy of small renal masses—A systematic review” [Eur. J. Radiol. Open 5 (2018) 102–107]
Publication date: Available online 19 July 2019Source: European Journal of Radiology OpenAuthor(s): S.J. Withey, J. Gariani, K. Reddy, D. Prezzi, C. Kelly-Morland, S. Ilyas, A. Adam, V. Goh (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - July 20, 2019 Category: Radiology Source Type: research

Superior ophthalmic vein thrombosis: What radiologist and clinician must know?
ConclusionsThe SOVT can be secondary to different mechanisms. The SOVT secondary to trauma, recent surgery and coagulopathy are mostly non-aggressive, and can be managed by conservative therapy and anticoagulation. The SOVT in patients with orbital cellulitis, history of active sinusitis or paranasal sinus surgery are aggressive presenting with acute orbital swelling, abscess and visual loss. This type of SOVT can be complicated by extension to the cavernous sinus and intracranial structures. These patients require urgent antibiotics therapy and sinus surgery. The most severe type of SOVT is caused by mucormycosis which ma...
Source: European Journal of Radiology Open - July 13, 2019 Category: Radiology Source Type: research

“CHOICES”: An acronym to aid in delineating potential causes of non-metabolic, non-infectious acute toxic leukoencephalopathy
ConclusionThe "CHOICES" acronym delineates various toxic etiologies of ATL. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - June 29, 2019 Category: Radiology Source Type: research

Practical applications of CISS MRI in spine imaging
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Zhixi Li, Yingming Amy Chen, Daniel Chow, Jason Talbott, Christine Glastonbury, Vinil ShahAbstractRoutine magnetic resonance imaging evaluation of the spine is often limited by low spatial resolution and artifacts resulting from cerebrospinal fluid pulsation. Balanced steady-state free precession sequences can supplement routine spin echo sequences and provide exquisite anatomic detail and high cerebrospinal fluid-to-soft tissue contrast, adding significant diagnostic value to the evaluation of a wide variety of spine disorders. (Source: E...
Source: European Journal of Radiology Open - June 27, 2019 Category: Radiology Source Type: research

Can fully iterative reconstruction technique enable routine abdominal CT at less than 1 mSv?
ConclusionFIRST enabled optimal lesion detection in routine abdomen CT at less than 1 mSv radiation dose in patients with body mass less than ≤25.8 kg/m2. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - June 22, 2019 Category: Radiology Source Type: research

The use of ‘Think-Out-Loud’ methodology in the development of teaching materials for abbreviated breast Magnetic Resonance Imaging scan (FAST MRI) interpretation, and a comparison of the learning experience of two reader cohorts
ConclusionTOL methodology allowed effective training of both groups of readers. The iterative nature of individual training ensured production of user-friendly materials including frequently-asked-questions sheets. It allowed for each person to feel that their views were fully listened to and incorporated into the training package, allowing for training materials with high face validity. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - June 16, 2019 Category: Radiology Source Type: research

Improvement in breast magnetic resonance imaging after a sentinel procedure for breast cancer with superparamagnetic tracers
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): S. Forte, R.A. Kubik-Huch, C. LeoAbstractThe superparamagnetic iron oxide tracer Sienna+® was introduced as an alternative to the radioisotope 99Tc Nanocoll to preoperatively mark sentinel lymph nodes in breast cancer. As previously reported, this tracer causes susceptibility artifacts on magnetic resonance imaging (MRI), potentially hampering the diagnostic performance of follow-up breast MRI. This short report illustrates the temporal development of these artifacts in a patient who was followed up at 6, 12, and 18 months after admini...
Source: European Journal of Radiology Open - June 9, 2019 Category: Radiology Source Type: research

Unusual CLIPPERS presentation and role of MRI examination in the proper diagnostic assessment: A case report
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Elena Vola, Camilla Russo, Antonio Macera, Walter Del Vecchio, Gianfranco Puoti, Ferdinando Caranci, Andrea ElefanteAbstractChronic Lymphocytic Inflammation with Pontine Perivascular Enhancement Responsive to Steroids syndrome (CLIPPERS) is a newly described, underestimated CNS inflammatory disorder involving predominantly the midbrain and the cerebellum. CLIPPERS pathogenesis is largely unknown, and its clinical manifestations are polymorphic and sometimes confounding. Recently clinical, radiological and pathological diagnostic criteria h...
Source: European Journal of Radiology Open - June 7, 2019 Category: Radiology Source Type: research

Detection of unwarranted CT radiation exposure from patient and imaging protocol meta-data using regularized regression
ConclusionThe study developed and tested a novel, automated method for processing CT scanner meta-data to identify CT exams where patients received an unwarranted amount of radiation. Radiation safety and protocol review committees may use this technique to uncover systemic issues and reduce future incidents. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - June 6, 2019 Category: Radiology Source Type: research

Clinical course of conservative management for isolated superior mesenteric arterial dissection
ConclusionsISMAD patients without peritoneal irritation can be treated conservatively if there are no signs of an aneurysm, ULP, or mesenteric ischemia. When an aneurysm or ULP sign exists, endovascular stenting was able to preserve SMA blood flow with the improvement of the dissection. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - May 25, 2019 Category: Radiology Source Type: research

Estimation of diffusion, perfusion and fractional volumes using a multi-compartment relaxation-compensated intravoxel incoherent motion (IVIM) signal model
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Anna Rydhög, Ofer Pasternak, Freddy Ståhlberg, André Ahlgren, Linda Knutsson, Ronnie WirestamAbstractCompartmental diffusion MRI models that account for intravoxel incoherent motion (IVIM) of blood perfusion allow for estimation of the fractional volume of the microvascular compartment. Conventional IVIM models are known to be biased by not accounting for partial volume effects caused by free water and cerebrospinal fluid (CSF), or for tissue-dependent relaxation effects. In this work, a three-compartment model (tissue, f...
Source: European Journal of Radiology Open - May 25, 2019 Category: Radiology Source Type: research

Dynamic MR of the pelvic floor: Influence of alternative methods to draw the pubococcygeal line (PCL) on the grading of pelvic floor descent
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Simona Picchia, Marco Rengo, Davide Bellini, Damiano Caruso, Eliseo Pironti, Roberto Floris, Andrea LaghiAbstractObjective: To evaluate the impact of the pubococcygeal line (PCL) position on hiatal descent grading, comparing the method recommended by the official guidelines with the other two most common methods reported in literature.Methods: Female patients prospectively included performed dynamic-MR (1,5 T) in supine position. Rectum and vagina were filled with ultrasound gel. MR protocol included TSE T2 weighted sequences on axi...
Source: European Journal of Radiology Open - May 22, 2019 Category: Radiology Source Type: research

Thyroid-associated Orbitopathy: Quantitative Evaluation of the Orbital Fat Volume and Edema Using IDEAL-FSE
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Yoko Kaichi, Keizo Tanitame, Hiroaki Terada, Hideki Itakura, Haruya Ohno, Masayasu Yoneda, Yuji Takahashi, Yuji Akiyama, Kazuo AwaiAbstractBackground and PurposeTo compare orbital quantitative data obtained by fast spin-echo iterative decomposition of water and fat with echo asymmetry and least-squares estimation (FSE-IDEAL) in patients with thyroid-associated orbitopathy (TAO) and healthy controls and to investigate the characteristics of these data in TAO patients.Materials and MethodsTwenty-two TAO patients (4 males and 18 females; medi...
Source: European Journal of Radiology Open - May 19, 2019 Category: Radiology Source Type: research

Determining malignancy in CT guided fine needle aspirate biopsy of subsolid lung nodules: Is core biopsy necessary?
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Nantaka Kiranantawat, Shaunagh McDermott, Milena Petranovic, Mari Mino-Kenudson, Ashok Muniappan, Amita Sharma, Jo-Anne O. Shepard, Subba R. DigumarthyAbstractPurposeTo assess the success of determining malignancy in subsolid lung nodules by fine needle aspirate of CT-guided transthoracic needle biopsy.Material and methodThis IRB approved retrospective study analyzed CTguided transthoracic needle biopsy of 86 consecutive subsolid nodules (size 25 + 14 mm; Age 71 + 10 years: M: F, 27:59), with ground glass opacity of = 50% in 64 (74%) and size
Source: European Journal of Radiology Open - May 5, 2019 Category: Radiology Source Type: research

Evaluation of iron deposition in brain basal ganglia of patients with Parkinson's disease using quantitative susceptibility mapping
ConclusionsUsing QSM in Red Nucleus, Subtania Nigera, and Globus Pallidus nuclei can help diagnosis and staging the patients with Parkinson's disease. In future, studies with emphasis on the disease stage can be helpful in evaluation the different parts of these three nuclei. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - May 1, 2019 Category: Radiology Source Type: research

“Learning from my experience”: Acute abdomen - Perforated Meckel's diverticulitis
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): William Janika Brackett, Shikha Khullar-GuptaAbstractThis is a case report documenting the risk in imaging misinterpretation of a pediatric patient that presented with an acute abdomen. Computed Tomography (CT) demonstrated an inflamed blind ending loop of bowel in the pelvis without an obvious cecal connection. The patient was taken to the operative theater, a normal appendix and perforated Meckel’s diverticulitis were resected. Meckel’s diverticulum is the most common small bowel abnormality and can have complications. We wil...
Source: European Journal of Radiology Open - April 29, 2019 Category: Radiology Source Type: research

Incidentally detected total agenesis of the falx cerebri: Potential significance of this rare finding
We present a case of non-syndromic, asymptomatic absence of falx cerebri in an elderly patient, which was discovered incidentally on a computed tomography examination of the head. The superior sagittal sinus was narrowed, but present. Relevant anatomic and embryological considerations are discussed, as well as potential implications for clinical practice. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - April 23, 2019 Category: Radiology Source Type: research

Sodium MRI with 3D-cones as a measure of tumour cellularity in high grade serous ovarian cancer
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Surrin S. Deen, Frank Riemer, Mary A. McLean, Andrew B. Gill, Joshua D. Kaggie, James T. Grist, Robin Crawford, John Latimer, Peter Baldwin, Helena M. Earl, Christine A. Parkinson, Sarah A. Smith, Charlotte Hodgkin, Elizabeth Moore, Mercedes Jimenez-Linan, Cara R. Brodie, Helen C. Addley, Susan J. Freeman, Penelope L. Moyle, Evis SalaAbstractThe aim of this study was to assess the feasibility of rapid sodium MRI (23Na-MRI) for the imaging of peritoneal cancer deposits in high grade serous ovarian cancer (HGSOC) and to evaluate the relation...
Source: European Journal of Radiology Open - April 20, 2019 Category: Radiology Source Type: research

When traditions become dangerous: Intestinal perforation from unusual foreign body—Case report and short literature review
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): I. Simonetti, M. Puglia, L. Tarotto, F. Palumbo, F. Esposito, A. Sciuto, L. Palumbo, A. RagozzinoAbstractGastrointestinal perforation (GI) is a common cause of acute abdomen in the emergency department that needs a prompt surgery intervention. Nowadays, CT examinations represent the method of choice to image patients with acute abdominal pain in emergency. GI perforations by foreign bodies ingested is rare and only
Source: European Journal of Radiology Open - April 19, 2019 Category: Radiology Source Type: research

Radiological findings of Posterior Reversible Encephalopathy Syndrome in transplanted children previous affected by hemoglobinopathy: A neuroimaging retrospective analysis
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Eliseo Picchi, Francesca Di Giuliano, Simone Marziali, Silvia Minosse, Valentina Ferrazzoli, Valerio Da Ros, Javid Gaziev, Chiara Adriana Pistolese, Roberto Floris, Francesco GaraciAbstractTo evaluate, by Magnetic Resonance Imaging, if there is a typical pattern or severity of PRES in transplanted children for hemoglobinopathy. Secondary point was to investigate the pattern and severity of PRES in children with thalassemia-THAL and sickle-cell disease-SCD after autologous hematopoietic stem cell transplantation (aHSCT). Finally, we evaluat...
Source: European Journal of Radiology Open - April 17, 2019 Category: Radiology Source Type: research

Effectiveness of therapeutic standard concentration barium enema for colonic diverticular bleeding: Preliminary results
ConclusionAlthough we had no statistical evidence, a therapeutic barium enema with a standard concentration as a diagnostic examination may be effective for both the initial hemostasis and preventing the recurrence of colonic diverticular bleeding without complications. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - April 9, 2019 Category: Radiology Source Type: research

Typical but uncommon computed tomography angiographic appearance of left ventricular assist device: Awareness is key!
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Priya Sarv, Watal Pankaj, Staron Michelle, Sato ShawnAbstractLeft ventricular assist devices (LVAD) are now a standard of care for patients awaiting heart transplant. Our patient had undergone placement of the HeartWare LVAD and presented to the hospital with complaints of fatigue, dyspnea, fever and discharge from the LVAD site. She underwent computed tomography angiography (CTA) to evaluate the LVAD. CTA revealed a hypodense area surrounding the outflow graft throughout its extent. This was suspicious of a thrombus. The repeat CTA perfor...
Source: European Journal of Radiology Open - April 5, 2019 Category: Radiology Source Type: research

Cecal fecaloma: A rare cause of right lower quadrant pain
We present the CT appearance of a surgically confirmed cecal fecaloma in a patient who presented with right lower quadrant pain, nausea, and vomiting, mimicking an acute appendicitis. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - April 5, 2019 Category: Radiology Source Type: research

Interstitial lung abnormality in stage IV non-small cell lung cancer: A validation study for the association with poor clinical outcome
ConclusionsILA on baseline CT at diagnosis of stage IV NSCLC patients was associated with shorter OS (HR = 2.09, p = 0.004), validating ILA as an independent marker for poor clinical outcome. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - March 29, 2019 Category: Radiology Source Type: research

Diagnostic performance of 2015 American Thyroid Association guidelines and inter-observer variability in assigning risk category
ConclusionThe estimated risk of malignancy in the high suspicion pattern of the 2015 ATA thyroid biopsy guidelines appears to be less than stated. However, this needs further validation in a larger cohort study. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - March 28, 2019 Category: Radiology Source Type: research

Cone-beam computed tomography compared to X-ray in diagnosis of extremities bone fractures: A study of 198 cases
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Prof. M. Ricci, M. Boldini, E. Bonfante, E. Sambugaro, E. Vecchini, G. Schenal, B. Magnan, S. MontemezziAbstractCBCT is an imaging technique consisting of X-ray computed tomography, in which the x-rays are divergent, forming a cone.During 2015, a new model of CBCT, New Tom 5G XL (Verona), was used in the Radiology Department of The University of Verona, in collaboration with the Orthopaedics Department. Our study was carried out from October 2015 to October 2016 (198 patients). We compared CBCT with standard x-ray in the diagnosis of foot ...
Source: European Journal of Radiology Open - March 14, 2019 Category: Radiology Source Type: research

Efficiency and reproducibility in pulmonary nodule detection in simulated dose reduction lung CT images
ConclusionSimulated standard deviation 21 images can reproduce the image interpretation result of original images, whereas simulated standard deviation 29 images may compromise the accuracy of nodule assessment. The effect on the reading time was not observed with dose reduction simulation. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - March 12, 2019 Category: Radiology Source Type: research

Digital subtract angiography and lipiodol deposits following embolization in cirrhotic nodules of LIRADS category ≥3
ConclusionThe LIRADS can be used to predict DSA findings and lipiodol deposits in nodules with LIRADS score 3 and above. LIRADS 3 nodules tend to be DSA-negative and have less lipiodol deposits. DSA and lipiodol deposits become more conspicuous in nodules from LIRADS 3 to 5.Graphical abstract (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - February 26, 2019 Category: Radiology Source Type: research

Calcification of the linea aspera: A systematic narrative review
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Samantha Bee Lian Low, Andoni Paul TomsAbstractThis review aims to consolidate the published demographics, clinical and radiological features of calcific tendonitis affecting the linea aspera. Using the PRISMA protocol, 55 clinical cases were extracted from 19 shortlisted papers. In a patient presenting with thigh and/or hip pain, radiologic evaluation should commence with plain radiographs; subsequent cross-sectional imaging, if necessary. Our review of the literature indicates that calcific tendonitis can be safely diagnosed when intrate...
Source: European Journal of Radiology Open - February 16, 2019 Category: Radiology Source Type: research

Secondary aneurysmal bone cyst in Langerhans cell histiocytosis: Case report, literature review
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): P. Lomoro, I. Simonetti, G. Vinci, V. Fichera, L. Tarotto, P. Trovato, M.S. Prevedoni GoroneAbstractLangerhans cell histiocytosis (LCH) is a rare disease of the myeloid precursor cells, it predominantly occurs in the skull and long bones as unifocal bone lesions. Aneurysmal bone cysts (ABC) are benign, expansive and lytic bone. Reports of secondary ABC occurring in LCH are rare, having only been reported twice in the skull. Here, we report the first case of LCH masquerading as ABC in a 14-month-old female child who presented with a rapidly...
Source: European Journal of Radiology Open - February 15, 2019 Category: Radiology Source Type: research

Kounis syndrome induced by contrast media: A case report and review of literature
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Kei Shibuya, Shu Kasama, Ryuichi Funada, Hiroyuki Katoh, Yoshito TsushimaAbstractKounis syndrome (KS) is an acute coronary disorder associated with anaphylactic reactions. The purpose of this report is to identify the features of KS triggered by contrast media on the basis of our experience and from literature review.We have described a case and literature review of KS triggered by injection of contrast media. Including the present case, we reviewed eleven cases of KS. Six cases developed KS in diagnostic radiology departments.KS could be ...
Source: European Journal of Radiology Open - February 14, 2019 Category: Radiology Source Type: research

The clinical significance of indeterminate pulmonary nodules in melanoma patients at baseline and during follow-up chest CT
This study aims to determine an appropriate timeline to monitor indeterminate pulmonary nodules (IPN) in melanoma patients to confirm metastatic origin.Materials and Methods588 clinically non-metastatic melanoma patients underwent curative intent surgery during 3 years. Patients with baseline chest CT and at least one follow-up (FU) CT were retrospectively analyzed to assess for IPN. Patients with definitely benign nodules, metastases and non-melanoma malignancies were excluded. Change in volume from first to FU CT, initial diameter (D1) and volume (V1), distance from pleura, peripheral and perifissural location, density a...
Source: European Journal of Radiology Open - February 12, 2019 Category: Radiology Source Type: research

Cardiovascular magnetic resonance T2* mapping for structural alterations in hypertrophic cardiomyopathy
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Mareike Gastl, Alexander Gotschy, Jochen von Spiczak, Malgorzata Polacin, Florian Bönner, Christiane Gruner, Malte Kelm, Frank Ruschitzka, Hatem Alkadhi, Sebastian Kozerke, Robert MankaAbstractPurposeHypertrophic cardiomyopathy (HCM) is characterized by a heterogeneous morphology and variable prognosis. A mismatch between left ventricular mass (LVM) and microvascular circulation with corresponding relative ischemia has been implicated to cause myocardial replacement fibrosis that deteriorates prognosis. Besides parametric T1 mapping, ...
Source: European Journal of Radiology Open - February 5, 2019 Category: Radiology Source Type: research

Localized malignant pleural mesothelioma mimicking an anterior mediastinal tumor
We report the case of a 40-year-old Japanese male with an LMPM mimicking an anterior mediastinal tumor due to invasion to the anterior mediastinum, and we discuss mainly the differentiation of LMPM from an anterior mediastinal tumor. The present tumor had a long shape along the pleura, and LMPM could be one of the differential diagnoses. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - February 1, 2019 Category: Radiology Source Type: research

Solidified mucinous tumor of the ovary presenting characteristic MRI finding
We report a rare case of a solidified mucinous tumor of the ovary, which showed unique findings on MR images. The tumor demonstrated hypointensity on T2-weighted images, not stained glass appearance, mimicking ovarian fibrous tumor such as thecoma-fibroma. Histopathological examination confirmed solidified contents of the tumor with numerous septa and diagnosed mucinous borderline tumor/atypical proliferative tumor. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - January 29, 2019 Category: Radiology Source Type: research

Initial experience with irreversible electroporation of liver tumours
ConclusionIRE is safe for treating tumours not suitable for thermal ablation with 63% of patients being without local recurrence after one year in a group of patients with tumours deemed unresectable. IRE has a role in the treatment of unresectable liver tumours close to heat-sensitive structures not suitable for thermal ablation.Level of Evidence: Level 4, Case Series. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - January 24, 2019 Category: Radiology Source Type: research

Multiple liver pseudotumors due to hepatic steatosis and fatty sparing: A non-invasive imaging approach
In this study, we present two patients with hepatic steatosis and multiple nodular liver lesions, due to fatty infiltration and fatty sparing respectively, mimicking a primary tumor or metastases (“pseudotumors”).Since the differential diagnosis of this kind of lesions can be difficult based on imaging alone, the knowledge of Contrast-Enhanced Ultrasound (CEUS) and Magnetic Resonance Imaging (MRI) findings may help radiologists to avoid an incorrect diagnosis of liver tumor, and unnecessary biopsies. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - January 12, 2019 Category: Radiology Source Type: research

Peculiarities of stroke-like lesions on MRI
Publication date: 2019Source: European Journal of Radiology Open, Volume 6Author(s): Josef Finsterer (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - January 12, 2019 Category: Radiology Source Type: research

Can apparent diffusion coefficient values help distinguish between different types of pediatric brain tumors?
ConclusionThe application of an ADC diagnostic criterion would reduce the need for spectroscopic analysis. However, further research is needed to implement ADC in the differential diagnosis of PBT. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - January 5, 2019 Category: Radiology Source Type: research

Comparison of reconstruction and acquisition choices for quantitative T2* maps and synthetic contrasts
ConclusionsSum of squares coil-channel combination produced artifacts in phase images, but images created with adaptive combination were artifact-free. The voxel-wise median signed difference of T2* between the vendor’s adaptive channel combination and k-space reconstruction modes was 2.9 ± 0.7 ms for white matter and 4.5 ± 0.6 ms for gray matter. Relative white matter/gray matter contrast of all synthetic images and contrast-to-noise ratio of synthetic T1-weighted images were almost equal between reconstruction modes. Our results indicate that synthetic contras...
Source: European Journal of Radiology Open - January 1, 2019 Category: Radiology Source Type: research

Evaluation of diagnostic value and T2-weighted three-dimensional isotropic turbo spin-echo (3D-SPACE) image quality in comparison with T2-weighted two-dimensional turbo spin-echo (2D-TSE) sequences in lumbar spine MR imaging
Conclusion3D SPACE sequence for lumbar spine MRI proved to have higher SNR, CNR, and visibility for all regions of lumbar spine except vertebrae and disc. Inter-observer and inter-method agreements for pathologic indexes between 3D SPACE and 2D TSE sequences were substantial and 3D SPACE had a higher inter-observer agreement and less scan time. Therefore, T2 weighted 3D SPACE sequence, and its MPR might be an excellent alternative for 2D TSE in sagittal, axial, and coronal planes, especially for patients with abnormal curvature of the lumbar spine. (Source: European Journal of Radiology Open)
Source: European Journal of Radiology Open - December 29, 2018 Category: Radiology Source Type: research