Evaluation of Malignant Lung Tumor Motion Comparing to Fix Point during Different Respiratory Phases on Four-Dimensional Computed Tomography.

Introduction: One of the most important problems in different radiotherapy methods in lung cancer tumors is the movement of the lung during the respiratory cycle and the subsequent motion of the tumor. Changing the shape and displacement of the tumor during radiotherapy increases the radiation to the surrounding normal tissues and decreases the radiation dose to the tumor tissue. The displacement of the lung and the path of the tumor can be traced.

Correlation between Radiologic Sign of Lumbar Lordosis and Functional Status in Patients with Chronic Mechanical Low Back Pain.

Study Design: A cross-sectional study.

Purpose: To describe the correlation between lumbar lordosis angle and functional status of patients with chronic mechanical low back pain (CMLBP).

Overview Of Literature: There are different and conflicting opinions regarding the relationship between the degree of lumbar lordosis and functional status of patients with low back pain.

Asymptomatic atlantoaxial subluxation in rheumatoid arthritis.

This cross-sectional study is conducted to determine the prevalence of asymptomatic cervical spine subluxation in rheumatoid arthritis patients by plain radiographs and its relation to demographic and clinical characteristics, disease activity measures and medications. 100 rheumatoid arthritis patients (18 male and 82 female) were selected randomly, according to the American college of Rheumatology Criteria, who were under follow up in the rheumatology clinic. A complete history was taken, and physical examination has been done with focus on the cervical spine to determine their demographic data, disease duration, age of disease onset, drug history, swollen and tender joint counts, and ESR, Hb, CRP, RF levels.

Correlation between Degree of Radiologic Signs of Osteoarthritis and Functional Status in Patients with Chronic Mechanical Low Back Pain.

Background: Osteoarthritis is the most intervening factors in producing mechanical low back pain (LBP). We aimed to evaluate the correlation between radiologic signs of osteoarthritis and functional status in patients with chronic mechanical LBP.

Methods: Severity of osteoarthritis and disability were evaluated with Kellgren and Lawrence Grading Scale (K&L) by simple lumbar X-ray and Oswestry Disability Questionnaire (ODQ) respectively.

Diagnostic Accuracy of Magnetic Resonance Angiography for Detection of Intracranial Aneurysms in Patients with Acute Subarachnoid Hemorrhage; A Comparison to Digital Subtraction Angiography.

Objectives: To determine the diagnostic accuracy of magnetic resonance angiography (MRA) compared to intra-arterial digital subtraction angiography (DSA) in detection of intracranial aneurysms in those suffering from acute subarachnoid hemorrhage (SAH).

Methods: This observational diagnostic study was performed at a tertiary teaching hospital and reference center in Shiraz, Iran. We included 55 patients who presented to our center with the diagnosis of acute SAH.

Magnetic resonance imaging findings and outcome of neuro-Behçet's disease: the predictive factors.

Aim: To investigate MRI findings that may predict unfavorable outcomes in the patients with neuro-Behçet's disease.

Subjects And Methods: All consecutive patients referred from 2002 to 2009 to the Behçet Clinic at Nemazee Hospital, Shiraz, Iran, who fulfilled International Study Group criteria for Behçet's disease and diagnosed as having neuro-Behçet's disease, were enrolled into this study. Characteristics of initial brain MRI were studied in patients with different courses of neuro-Behçet's disease.

MRI findings of neuro-Behcet's disease.

Neurological manifestations present in 5% to 30% of patients with Behçet's disease. We studied consecutive patients with relapsing--remitting or progressive neuro-Behcet's disease who referred from January 2002 to January 2009 to Nemazee Hospital, Shiraz, southern Iran. Sequential MRIs were performed during clinical relapses in patients with relapsing--remitting course or during relentless progression after first referral of patients with progressive course.

Accuracy of sonography in detection of renal injuries caused by blunt abdominal trauma: a prospective study.

Background: This prospective study was conducted to evaluate the accuracy of sonography in detection of renal injuries caused by blunt abdominal trauma.

Methods: One hundred sixty-four patients (131 M, 33 F) with a history of recent blunt abdominal trauma who were stable enough to undergo both sonography and CT scan were included in this study. All of the cases had accepted indications for renal imaging.

Visual field defect as a presenting sign for hemorrhagic stroke caused by sildenafil.

Herein, we describe the presenting symptoms, history, ophthalmic examination, visual fields and brain magnetic resonance imaging of a patient who developed left homonymous hemianopia due to right occipital lobe hemorrhage after ingestion of sildenafil citrate (Novagra Forte). To the best of our knowledge, association of homonymous hemianopia with sildenafil usage has not been reported before.