Radiology, CT, MRI

INTRODUCTION: Cortical subarachnoid haemorrhage (cSAH) has multiple aetiologies. No prospective study has reported the long-term progression of the condition. The objective of this study is to describe the clinical and aetiological characteristics of patients with cSAH and to gain insight into prognosis. METHODS: We performed a prospective, observational, multi-centre study. Data on clinical and radiological variables were collected; during a one-year follow-up period, we recorded data on mortality, dependence, rebleeding, and the appearance of dementia...

BACKGROUND: In recent years, simulations based on phantom models have become increasingly popular in the medical field. In the field of functional and stereotactic neurosurgery, a cranial phantom would be useful to train operative techniques, such as stereo-electroencephalography (SEEG), to establish new methods as well as to develop and modify radiological techniques. In this study, we describe the construction of a cranial phantom and show examples for it in stereotactic and functional neurosurgery and its applicability with different radiological modalities...

Inflammatory myofibroblastic tumor (IMT) can occur rarely in the soft tissue or joint of the limb. We retrospectively collected IMT cases of these rare sites and analyzed their clinical and imaging appearance. Thirteen cases of IMT were clinically diagnosed and underwent surgical procedures, pathological analyses, and postsurgical follow-up in our two hospitals. Other than one case of IMT of the bladder wall that presented with gross hematuria, none presented with local swelling, fever, or weakness. All the cases of IMT occurring at the bone showed destruction and parosteal soft tissue masses...

Background: Intracranial dermoid cysts are uncommon lesions with characteristic imaging appearances. Symptomatic clinical presentation usually occurs in one of two ways: mass effect or rupture. Radiologically, dermoid cysts typically present as low density masses on computed tomography (CT) scan and are generally hyperintense on T1-weighted magnetic resonance imaging (MRI) sequences with variable signal on T2-weighted sequences. Case Description: We present the case of a 35-year-old female presented with symptoms of increased intracranial pressure...

BACKGROUND: Despite sufficient literature analyzing macroscopic and microscopic methods of addressing emergency department (ED) operations, there is a paucity of studies that analyze methods between these extremes. OBJECTIVE: We conducted a quasi-experimental study incorporating a pre/post-intervention comparison to determine whether interdepartmental cooperation is effective at improving ED operations by combining microscopic and macroscopic concepts. METHODS: We performed an analysis of operational and financial data from a cooperative investment in imaging transport personnel between the emergency and radiology departments...

INTRODUCTION: Sinonasal inflammatory conditions account for a major component of head and neck pathologies, whereas neoplasms involving the sinonasal region make up only 2-3% of all head and neck lesions. The symptoms of sinonasal tumors are nonspecific; imaging plays a critical role in distinguishing benign and malignant disease and may illustrate characteristic radiological features of specific sinonasal tumors. OBJECTIVE: Aim was to determine the utilization of multimodality imaging, specifically the metabolic information provided by 18-fluorodeoxyglucose positron emission tomography (18 F-FDG PET/CT) and diffusivity characteristics seen with diffusion weighted images (DWI) of magnetic resonance imaging (MRI), in a wide range of benign and malignant sinonasal tumors drawn from over 200 sinonasal lesions from our institution and supplemented by the literature...

BACKGROUND: Many follow-up guidelines for high-risk melanoma patients include expensive imaging studies, serum biomarkers, and regular visits to the dermatologist with little attention to cost-effectiveness. OBJECTIVES: To establish the cost-effectiveness of chest-abdomen-pelvis CT-scan and brain MRI in a follow-up protocol for patients at high risk of relapse. METHODS: Prospective single-center cohort study of 290 melanoma patients with clinicopathological AJCC stages IIB, IIC and III...

PURPOSE: Radiography has a low sensitivity for the detection of fractures related to the talonavicular and calcaneocuboid articulations, also known as Chopart fractures. The purpose of this study is to determine the sensitivity of radiographs for detecting additional foot and ankle fractures related to Chopart fracture using CT or MRI as the reference standard. METHOD: We performed an IRB-approved, retrospective review of radiology reports between 2010 and 2014...

PURPOSE: To prospectively compare diagnostic accuracies for detection of bone metastases by 68 Ga-PSMA PET/CT, 18 F-NaF PET/CT and diffusion-weighted MRI (DW600 -MRI) in prostate cancer (PCa) patients with biochemical recurrence (BCR). METHODS: Sixty-eight PCa patients with BCR participated in this prospective study. The patients underwent 68 Ga-PSMA PET/CT, a 18 F-NaF PET/CT and a DW600 -MRI (performed in accordance with European Society of Urogenital Radiology guidelines, with b values of 0 and 600 s/mm2 )...

BACKGROUND:  Vascular anomalies are a diagnostic and therapeutic challenge. They require dedicated interdisciplinary management. Optimal patient care relies on integral medical evaluation and a classification system established by experts in the field, to provide a better understanding of these complex vascular entities. METHOD:  A dedicated classification system according to the International Society for the Study of Vascular Anomalies (ISSVA) and the German Interdisciplinary Society of Vascular Anomalies (DiGGefA) is presented...

Stereotactic body radiation therapy (SBRT) is an option for selected patients with metastatic disease. However, sometimes these lesions are located in such close proximity to critical normal structures that the use of safe tumoricidal SBRT doses is not achievable. Here we present a case in which real-time imaging and tracking with a magnetic resonance linear accelerator (MR-LINAC) provided a novel treatment approach and enabled safe treatment of the tumor using SBRT. Our case is a 69-year-old female who presented with localized recurrent small cell lung cancer with a retroperitoneal (FDG-avid) soft tissue lesion measuring 2...

OBJECTIVE: To explore the radiological characteristics of the upper respiratory tract and their correlations with obstructive sleep apnoea/hypopnea syndrome (OSAHS) in patients with acromegaly. METHODS: Computed tomography (CT) and magnetic resonance imaging (MRI) were performed in untreated patients with acromegaly placed in straight (SHP) and extended head positions (EHP). Overnight polysomnography was performed to evaluate OSAHS, and the apnoea/hypopnea index (AHI) was measured...

OBJECTIVE: The objective of the study was to assess the effectiveness of laminoplasty in terms of improvement in the Japanese Orthopedics Association (JOA) score in cervical spondylotic myelopathy (CSM). STUDY DESIGN: Descriptive study. PLACE AND DURATION OF STUDY: Department of Neurosurgery, Lahore General Hospital, Lahore, from June 2014 to October 2016. METHODOLOGY: All patients having CSM were assessed preoperatively and postoperatively by JOA score and radiological findings...

Background Preoperative radiological evaluation of the cranial or intracranial extension of malignant head and neck tumors is critical in the planning of curative surgery. Purpose To assess the diagnostic accuracy of computed tomography (CT) combined with magnetic resonance imaging (MRI), compared to CT or MRI alone in diagnosing the direct cranial or intracranial extension of malignant head and neck tumors, using histopathologic results as the reference standard. Material and Methods CT and MRI images in 41 patients with malignant head and neck tumors abutting the skull were retrospectively reviewed...

OBJECTIVES: To prospectively evaluate the clinical value of real-time ultrasonography (US)-computed tomography (CT)/magnetic resonance imaging (MRI) fusion imaging for percutaneous needle biopsy of focal liver lesions (FLLs), and to compare its biopsy success rate with that of conventional US-guided biopsy in a propensity-score matched group. METHODS: This study was approved by our Institutional Review Board and informed consent was obtained from all patients enrolled in the prospective study group...

Objective: To analyze characteristics of CT scan and MRI images of middle ear adenomas,and provide pre-operation diagnosis and differential diagnosis combined with clinical manifestation. Method: Retrospective analysis of 8 cases of middle ear adenomas which were diagnosed and treated with surgery in Beijing Tongren Hospital between 2004 and 2014, patients' complain, clinical manifestation, physical examination, pure tone analysis, CT scan and MRI images were collected. Result: A total of 8 cases were included in this study with 5 females and 3 males...

BACKGROUND AND PURPOSE: Embryonal tumor with multilayered rosettes (ETMR), C19MC-altered, is a recently described, rare central nervous system tumor. To our knowledge, the imaging findings of this tumor have not been systematically evaluated in the neuroradiology literature. We present here the clinical, radiological, and pathological correlation of a case series of this very rare tumor, including the full range of anatomic compartment presentations (supratentorial, infratentorial, and spinal)...

BACKGROUND: Leadless pacemaker systems are an important upcoming device in clinical rhythmology. Currently two different products are available with the Micra system (Medtronic) being the most used in the clinical setting to date. The possibility to perform magnetic resonance imaging (MRI) is an important feature of modern pacemaker devices. Even though the Micra system is suitable for MRI, little is yet known about its impact on artifacts within the images. OBJECTIVE: The aim of our ex vivo study was to perform cardiac MRI to quantify the artifacts and to evaluate if artifacts limit or inhibit the assessment of the surrounding myocardium...

OBJECTIVE: To present the first reported case of a temporal lobe abscess in a patient with ectodermal dysplasia (ED). To increase awareness among neurotologists of the otological manifestations and complications of ED, we describe a conservative approach in comparison with the surgical strategies to repair bony defects of the tegmen tympani. STUDY DESIGN: Clinical capsule report. PATIENT: A 44-year-old man with ED presented with retroauricular pain and high-grade fever after Eustachian tube catheterizations to treat an effusive otitis media...

Papillary glioneuronal tumor (PGNT) is a recently described central nervous system neoplasm. In 2007, the World Health Organization classified this tumor as a grade I neuronal-glial neoplasm. Patients are usually juvenile and young adults who commonly present with headache or seizures. We report a case of a 13-year-old boy that was related to our hospital after suffering a mild head injury result of an automobile accident. Emergent CT scan showed a right hypointense temporo-occipital lesion. MRI confirmed the presence of a lesion suggestive of a primary brain tumor...