Soheil Kooraki

University of California, Los Angeles | UCLA · Department of Radiology

e20087 Background: Image-guided thermal ablation (IGTA) is an effective treatment option for patients with non-small cell lung cancers (NSCLC), offering an excellent alternative to invasive surgery. We seek to compare long-term survival metrics between single and multifocal stage IA NSCLC patients who underwent IGTA. Methods: IRB-approved, HIPAA-co...

For more than 1 year, COVID-19 pandemic has impacted every aspect of our lives. This paper reviews the major challenges that the radiology community faced over the past year and the impact the pandemic had on the radiology practice, radiologist-in-training education, and radiology research. The lessons learned from COVID-19 pandemic can help the ra...

Objectives We aimed to develop and validate a prognostic model to predict clinical deterioration defined as either death or intensive care unit admission of hospitalized COVID-19 patients. Methods This prospective, multicenter study investigated 172 consecutive hospitalized COVID-19 patients who underwent a chest computed tomography (CT) scan betw...

Objectives We aimed to develop and validate a prognostic model to predict clinical deterioration defined as either death or intensive care unit admission of hospitalized COVID-19 patients. Methods This prospective, multicenter study investigated 172 consecutive hospitalized COVID-19 patients who underwent a chest computed tomography (CT) scan betwe...

Purpose This study aimed to investigate the role of cross-sectional imaging in differentiating between benign and malignant splenic lesions based on various imaging features. Methods Database of imaging reports from January 2015 to December 2017 were searched dedicatedly for "spleen" or "splenic" terms to identify patients with splenic lesions fou...

Differentiation between benign and malignant thyroid nodules using diffusion-weighted imaging, a 3-T MRI study Introduction With 42% frequency in ultrasound examination, thyroid nodules play a big challenge for both radiologists and clinicians. Most of these nodules are benign; however, up to 7% will turn out to be malignant, requiring proper manag...

Posterior reversible encephalopathy syndrome (PRES) is one of the most common neurologic complications following hematopoietic stem cell transplantation (HSCT). We aimed to evaluate incidence, clinical, and imaging features of PRES in pediatric patients with FA following HSCT. This prospective study was carried out on all post-HSCT patients with un...

OBJECTIVE. The purpose of this study was to assess the MR enterographic features of primary small intestinal lymphoma (PSIL) and compare them with active Crohn disease (CD) presenting with severe (≥ 10 mm) mural thickening of the small bowel. MATERIALS AND METHODS. This retrospective study included 15 patients with pathologically proven PSIL and 15...

OBJECTIVE. Since the outbreak of the novel coronavirus pulmonary illness coronavirus disease 2019 (COVID-19) in China, more than 79,000 people have contracted the virus worldwide. The virus is rapidly spreading with human-to-human transmission despite imposed precautions. Because similar pulmonary syndromes have been reported from other strains of...

627 Background: Differentiation of benign oncocytoma from chromophobe renal cell carcinoma (chRCC) remains a challenge. This study aimed to investigate whether Aorta-lesion-attenuation difference (ALAD) on multiphasic multidetector CT scan (MDCT) can aid to distinguish oncocytoma from chRCC. Methods: This IRB-approved, HIPAA-compliant study consist...

In December 2019, a novel coronavirus pneumonia emerged in Wuhan, China. Since then, this highly contagious coronavirus has been spreading worldwide, with a rapid rise in the number of deaths. Novel coronavirus-infected pneumonia (NCIP) is characterized by fever, fatigue, dry cough, and dyspnea. A variety of chest imaging features have been reporte...

We aimed to review the latest cutting-edge trends in emerging techniques of musculoskeletal imaging. This study reviews the current status and the preliminary studies of Magnetic Resonance Fingerprinting (MRF), Ultrashort Echo Time (UTE) sequence, Positron Emission Tomography (PET)/MR and Dual-Energy CT scan (DECT) in various oncologic and non-onco...

Objective: Magnetic resonance spectroscopy (MRS) is a powerful tool for structural studies of chemical compounds and biomolecules and also documented promising findings as a potential imaging technology in thyroid oncology. This prospective study was to ascertain the clinical significance of 3 Tesla MRS in the evaluation of patients with thyroid n...

Background: Preoperative differentiation of benign from malignant thyroid nodules remains a challenge. Aims: This study assessed the accuracy of diffusion-weighted imaging (DWI) for differentiation between benign and malignant thyroid nodules. Materials and methods: Preoperative DWI was performed in patients with thyroid nodule by means of a 3-T...

Background This study aimed to evaluate the association of various opium-related factors with common bile duct (CBD) diameter in opium-addicts in the general population and investigate the clinical importance and long-term outcomes. Materials and Methods In this prospective study, 2400 participants were randomly selected from the Golestan Cohort s...

Background: As an advanced generation of flow diverters (FD), pipeline embolization device (PED) is introduced for endovascular aneurysm occlusion. In the present study, we aimed to present the mid-term results after endovascular treatment of unruptured intracranial aneurysms using PED. Patients and Methods: A total of 20 patients with 20 intracran...

Purpose: To assess small bowel abnormalities on magnetic resonance enterography (MRE) in adult patients with nonresponsive celiac disease (CD) and investigate their associations with endoscopic, histopathologic, serologic, and genetic features. Materials and methods: This prospective study was carried out between September 2012 and August 2013....

Background: To investigate the association between non-alcoholic fatty liver disease (NAFLD) and quantitative measures of central adiposity in the general population using a semi-automated method on magnetic resonance imaging (MRI) data. Methods: Subjects were recruited from Golestan Cohort Study. Two groups of 120 individuals with and without f...

Glioma is considered the most common type of primary central nervous system (CNS) tumor. Imaging is crucial for diagnosis, characterization, grading, and therapeutic planning of CNS gliomas. Along with a brief description of conventional computed tomography and magnetic resonance imaging techniques, this article reviews the ever-developing role of...

Covered stents have rarely been used in neuroendovascular procedures. We report the case of a 74-year-old woman with a complex iatrogenic vascular injury from attempted insertion of a hemodialysis catheter: concurrent brachiocephalic artery pseudoaneurysm and common carotid artery to internal jugular vein fistula. Both lesions were excluded success...

Spectrum of Hollow Viscous Organ Injuries and Radiologic Features, with review of literature and presenting some interesting cases

Existing evidence suggests the visceral fat is more metabolically active than subcutaneous fat. We aimed to investigate the value of subcutaneous (SAT) and visceral adipose tissue thickness (VAT) for prediction of gallstone disease (GSD) in general population by focus on gender differences and comparison with body mass index (BMI), waist-to-hip rat...

Covered stents have rarely been used in neuroendovascular procedures. We report the case of a 74-year-old woman with a complex iatrogenic vascular injury from attempted insertion of a hemodialysis catheter: concurrent brachiocephalic artery pseudoaneurysm and common carotid artery to internal jugular vein fistula. Both lesions were excluded success...

Hematopoietic stem cell transplantation (HSCT) is the only known curative treatment of malignant infantile osteopetrosis (MIOP). In this study, short-term serial bone surveys were used to assess radiologic evolution of skeletal changes after HSCT in MIOP. Baseline whole-body bone survey was performed in all patients. HSCT was successful in 14 patie...

Existing evidence suggests potential contribution of iron in pathogenesis of nonalcoholic fatty liver disease (NAFLD). We aimed to investigate whether hepatic iron content correlates with liver enzyme levels in NAFLD using a noninvasive magnetic resonance imaging (MRI) technique. Subjects from Golestan Cohort Study were randomly selected. Diagnosis...

Objectives: Pre-operative differentiation of salivary gland neoplasms is of great importance. This study was designed to evaluate the use of dynamic contrast-enhanced MRI (DCE-MRI) for differentiation between malignant, Warthin and benign non-Warthin (BNW) neoplasms of major salivary glands. Methods: 46 major salivary gland tumours (SGTs) underw...

IntroductionHematopoietic stem cell transplantation (HSCT) is the only known curative treatment of malignant infantile osteopetrosis (MIOP). In this study, short-term serial bone surveys were used to assess radiologic evolution of skeletal changes after HSCT in MIOP.Materials and Methods Baseline whole-body bone survey was performed in all patients...

To assess and compare the efficacy of on-demand versus daily dosages of tadalafil in the treatment of erectile dysfunction. The case-control double-blind study was conducted at the Department of Urology, Tehran University of Medical Science, Imam Khomeini Hospital, from March 2008 to January 2010. It comprised 100 males suffering from erectile dysf...

Children often swallow foreign bodies. Multiple magnet ingestion is rare, but can result in serious complications. This study presents three unique cases of multiple magnet ingestion: one case an 8-year-old boy with multiple magnet ingestion resulting in gastric obstruction and the other two cases with intestinal perforations due to multiple magnet...

Antidepressant effects of magnetic resonance imaging (MRI) based stimulation have been reported in animal studies, but no human studies are available on subjects with major depressive disorder. Here, the efficacy of two diagnostic MRI protocols (echo-planar diffusion-weighted imaging (DWI) and T1-weighted imaging) was assessed in patients with majo...

Background and Objectives: Brucellosis is considered the leading zoonotic disease of the Middle East. The disease has a wide spectrum of clinical manifestations and can result in complications with severe morbidity. The aim of this study was to evaluate the frequency, distribution and characteristics of arthritis in Iranian children with brucellosi...

Brucellosis is considered the leading zoonotic disease of the Middle East. The disease has a wide spectrum of clinical manifestations and can result in complications with severe morbidity. The aim of this study was to evaluate the frequency, distribution and characteristics of arthritis in Iranian children with brucellosis. A retrospective descript...

Tuberculosis of the breast is an extremely rare disease, which is still present and is also misdiagnosed with carcinoma or bacterial abscesses. In this study, we reported on eight patients with mammary tuberculosis during a four-year period. The main signs and symptoms of the patients included a painful tender lump in the breast (n=4), a painless l...