Advantages of MRI Higher resolution of tissues No ionizing radiation

Slides:

Advertisements

Similar presentations

Ankylosis of TMJ Arthritis of TMJ Infectious arthritis Rheumatoid arthritis Degenerative arthritis Traumatic arthritis.

Advertisements

Medical Interventions Mrs. Stewart Central Magnet School

Leigh Vaughan, MD June 5, 2012 MUSC. Outline CT Advantages, disadvantages Modality basics Appropriate uses With or without contrast MRI Advantages, disadvantages.

AHM 244 Introduction to Imaging

TMJ Radiography Jon K. Park, D.D.S., M.S. University of Maryland School of Dentistry Department of Oral Medicine Baltimore, MD

Ionizing Radiation – X-Ray Imaging Gerald R. Aben, MD, FACR Department of Radiology College of Osteopathic Medicine.

Imaging the Musculoskeletal System The Extremities

Sherman Alter, M.D. Elizabeth H. Ey, M.D. Mark Warren, D.O. Jeffrey Pence, M.D.

Atherosclerosis Buildup and hardening of plaque - fat, cholesterol, white blood cells, calcium, and others. Usually due to injury to inner lining (intima)

Imaging Studies in Orthopaedics

Nuclear Medicine Spring 2009 FINAL. 2 NM Team Nuclear medicine MD Nuclear medicine MD Physicist Physicist Pharmacist Pharmacist Technologist Technologist.

Basic Concepts of Other Imaging Modalities Dent 5101.

Introduction to Medical Imaging

Advantages of MRI Higher resolution of tissues No ionizing radiation Multiplanar imaging.

Magnetic Resonance Imaging

Musculoskeletal Radiology

Radio activity is important in medicine because it is used in diagnosing and therapy. Therapy is treatment such as treating cancer. Tumours are destroyed.

Radioisotopes in Medicine

Radioactivity The Professional Development Service for Teachers is funded by the Department of Education and Science under the National Development Plan.

Medical Interventions Mrs. Stewart Central Magnet School

Additional Procedures

Introduction to Nuclear Medicine

BRAINSTORM Understanding Diagnostic Scans: MRI, CT, PET AND MORE Stanley Lu, MD Director, Neuroradiology Monmouth Medical Center March 5, 2012.

LECTURE – 1 – RHPT – 485 READING IN MEDICAL IMAGING LEVEL - 8

Nuclear Medicine. The History Henri Becquerel 1896-Discovered mysterious “rays” Nobel Prize Marie Curie named mysterious rays “radioactivity”

Radiologic Procedures

Magnetic Resonance Imaging Dr Mohamed El Safwany, MD.

Neurologic and Musculoskeletal Imaging Studies دکترامیر هوشنگ واحدی متخصص طب فیزیکی و توانبخشی قسمت 1.

Introduction to Medical Imaging From a presentation by Jeff Benseler, D.O.

4-Jun-161 ULTRASOUND IMAGING Lec 1: Introduction Ultrasonic Field Wave fundamentals. Intensity, power and radiation pressure.

X-rays. Electromagnetic Spectrum to 10 nm 400 to 700 nm to nm 10 to 400 nm 700 to 10 4 nm X-ray radiation was discovered by Roentgen.

Anatomy and Physiology

Two Other Densities in Plain Films Contrast media: bright white outline of the structure injected Contrast media: bright white outline of the structure.

1 As Clinical Anatomy RADIOLOGY. COURSE GOALS  Understand basics of image generation.  Relate imaging to gross anatomy.  See clinical relationship.

Magnetic Resonance Imaging (MRI). The Components: A magnet which produces a very powerful uniform magnetic field. A magnet which produces a very powerful.

NUCLEAR MEDICINE.  High Energy Photon  Ionizing Radiation --Radiopharmaceutical  Exposes Detector  Projection Data  Dynamic / Physiologic Here we.

Nuclear Medicine Technique I 355 RAD L.Aya Ahmed Saeed.

Introduction to nuclear medicine NMT 231 L.Aya Ahmed Saeed.

Introduction to NM Omima Adam NMT 231. What is nuclear medicine NM Is the branch of medicine that uses radiation and nuclear properties of radionuclide's.

INTRODUCTION RHPT – 485 LEVEL – 8 READING IN MEDICAL IMAGING.

MEDICAL INTERVENTIONS MRS. STEWART CENTRAL MAGNET SCHOOL Diagnostic Imaging.

Copyright © F.A. Davis Company Chapter 5 Musculoskeletal Diagnostic Techniques.

Radioisotopes Gallium-67.

MAGNETIC RESONANCE IMAGING by PRADEEP V.EPAKAYAL. Mem.no L.

Medical Imaging. X-ray Radiography 2-D projection image created from difference in x-ray absorption rates between tissues 2-D projection image created.

Inaya medical science college Introduction To Nuclear Medicine Technology RAD364 L: Aya Ahmed Abd alrahium saeed MSC &BSC Nuclear medicine.

Lecture:2 INTRODUCTION TO RADIOLOGY.  Students should be able to understand different views of normal and abnormal x-rays  Students should understand.

Introduction to Medical Imaging Jeff Benseler, D.O.

Conventional Tomography :. Conventional Tomography Performed when there is overlap of bony or soft tissue structures at the area of interest, Multiple.

Diagnostic Imaging Medical Interventions

Medical Imaging.

CT Scan vs MRI.

ASSESSMENT TECHNIQUES

Radiology Renal System

Radiology Renal System

Diagnostic Imaging.

Department of Nuclear Medicine, East-West Neo Medical Center,

Department of radiology divided into

Diagnostic Imaging Required Reading: Pg

Medical Imaging Imagining Modalities.

Radioisotopes in Medicine

Positron Emission tomography

Breast Sentinel Node Scintigraphy

Imaging in Liver Malignancy

Imaging Highlights.

Ultrasound Examinations Indications Evaluation of the site of pain (e.g. gall bladder). Evaluation of liver disease. Diagnosis of renal or ureter.

Different Modalities in Imaging: An Overview

Radiology & investigation of hepatobiliary system

Nuclear medicine.

Presentation transcript:

Advantages of MRI Higher resolution of tissues No ionizing radiation Multiplanar imaging

Disadvantages of MRI Long imaging time Hazards with ferromagnetic metals (pacemakers, vascular clips, etc) Claustrophobia Higher cost

Relative Brightness of Tissues Fat White Marrow Brain Muscle Gray Body Fluid TMJ Disk Cortical Bone Air Black

Nuclear Medicine

Nuclear Medicine Radioactive compounds Target tissues Radioactive agents pools in the target tissues Detected and imaged by external detectors (gamma camera).

Nuclear Medicine Shows structure and function of the target tissues Static and dynamic conditions Scintigraphy scans or RN (radionuclide) scans Bone scans or salivary gland scans

Technetium 99mTcO4- - thyroid and salivary gland scan 99Tc phosphate - bone scan

Is this an active disease?

Phases of Salivary Gland Scan Flow phase: Five to 10 mCi of 99mTcO4 first 30 to 120 seconds shows flow of blood Concentration phase: next 30 to 45 minutes demonstrate the anatomy and function Washout Phase: administer sialagogue demonstrates secretory capabilities

Cephalometric Radiography Reproducible and standardized views For measurements and assess growth Fixed source to film distance – 60 inches Cephalostats and earplugs help in reproducible positions

Cephalometric Radiography

Contrast Agents

Contrast Agents Radiopaque materials Water soluble Fat soluble 28 – 38% iodine

Phases of Sialography Ductal Acinar Evacuation

Indications of Sialography Acute swelling secondary to ductal obstruction Recurrent Inflammation Palpable salivary gland mass Autoimmune Sialadenitis

Contraindications of Sialography Sensitivity to contrast agents Acute Sialadenitis Limited use in tumor diagnosis

Scintigraphy Sialography Radioactive material Radiopaque material Through blood stream Through duct All glands imaged at the same time One gland at a time Imaged by gamma camera Imaged by fluoroscopy

Contrast Studies: Arthrography

Arthrography Contrast media is introduced in joint spaces Upper vs. lower joint space Viewed by Image Intensifier Fluoroscopy Video recording allows study of joint movement

Contrast Material Injection

Open Position Translation of condyle Reduction of disk