Measurement and interpretation of key ultrasound parameters are essential to differentiate normal anatomy from pathology. By using Measurement in Ultrasound, trainee radiologists and ultrasonographers can gain an appreciation of such measurements, while practitioners can use it as a valuable reference in the clinical setting. The book follows a consistent format throughout for ease of reference and features useful information on preparation and positioning of the patient for ultrasound, the type of transducer and method to be used, the appearance of the resulting ultrasound images and the measurements to be derived from them. Designed for frequent use in everyday practice, the book includes more than 150 high-quality ultrasound images annotated with key measurements and accompanied by concise explanatory text. Normal variants are provided, along with ranges for features that can change during development and in disease. This new edition covers relevant developments in ultrasound. Where appropriate, updated ultrasound measurements that have arisen are also included and key references are provided as an aid to further study.

Medical applications of ultrasound range from therapy, foetal monitoring, diagnostic imaging and blood flow measurement, to surgery and lithotripsy. Ever since the earliest developments of medical ultrasound there has been an interest in the measurement and characterisation of the ultrasonic fields generated in these applications, either for assessment of performance of equipment or for safety. Until recently, procedures for acoustic output measurements were ill-defined, but standards are now being developed internationally by the International Electrotechnical Commission (1EC) and reliable commercial measuring equipment is becoming more widely available. The aim of this book is to introduce acoustic output measurement techniques and to provide an insight into the measurement methods. The material presented is based on a course originally run during November 1989 at the National Physical Laboratory. In addition to the lectures, the course consisted of a series of practicals to allow participants to gain experience of making measurements. Teddington, UK Roy C. Preston February 1991 Contents List of Contributors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii List of Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 Safety of Diagnostic Ultrasonic Equipment: The Relevance of Acoustic Output Information to the Clinical User R. C. Preston 1. 1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1. 2 The Relevance of Acoustic Output Information. . . . . . . . . . . . . 6 1. 2. 1 What Is Acoustic Output Information? . . . . . . . . . . . . . . . . . . . 6 1. 2. 2 What Is Acoustic Output Information Used For? . . . . . . . 6 1. 2. 3 Why Should You Know the Acoustic Output Levels of Your Equipment? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1. 2. 4 Are Acoustic Output Levels Really that Important? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

This open access book gives a complete and comprehensive introduction to the fields of medical imaging systems, as designed for a broad range of applications. The authors of the book first explain the foundations of system theory and image processing, before highlighting several modalities in a dedicated chapter. The initial focus is on modalities that are closely related to traditional camera systems such as endoscopy and microscopy. This is followed by more complex image formation processes: magnetic resonance imaging, X-ray projection imaging, computed tomography, X-ray phase-contrast imaging, nuclear imaging, ultrasound, and optical coherence tomography.

Offers an Extensive Discussion on High Frequency UltrasoundBased on a course taught and developed by a foremost expert in diagnostic ultrasound technology, Diagnostic Ultrasound: Imaging and Blood Flow Measurements, Second Edition covers cutting-edge developments, along with the fundamental physics, instrumentation, system architecture, clinical ap

Measurement and interpretation of key ultrasound parameters are essential to differentiate normal anatomy from pathology. By using Measurement in Ultrasound, trainee radiologists and ultrasonographers can gain an appreciation of such measurements, while practitioners can use it as a valuable reference in the clinical setting. The book follows a consistent format throughout for ease of reference and features useful information on preparation and positioning of the patient for ultrasound, the type of transducer and method to be used, the appearance of the resulting ultrasound images and the measurements to be derived from them. Designed for frequent use in everyday practice, the book includes more than 150 high-quality ultrasound images annotated with key measurements and accompanied by concise explanatory text. Normal variants are provided, along with ranges for features that can change during development and in disease. This new edition covers relevant developments in ultrasound. Where appropriate, updated ultrasound measurements that have arisen are also included and key references are provided as an aid to further study.

Measurement of key parameters is an essential part of interpreting ultrasound scans and differentiating normal anatomy from pathology. Trainee radiologists and ultrasonographers often find it difficult to gain a good appreciation of such measurements. This book is a user-friendly handbook that can be used in day-to-day practice. It is made up of a series of ultrasound images with accompanying explanatory line drawings together with all key measurements. Normal variants are given together with ranges for features that change during development. There is also a list of key references for each criterion. Coverage is in line with examination requirements making it particularly suitable for trainee radiologists and ultrasonographers.

Ultrasound imaging is one of the most important and widely used diagnostic tools in modern medicine, second only to the conventional x-ray. Although considered a mature field, research continues for improving the capabilities and finding new uses for ultrasound technology while driving down the cost of newer, more complicated procedures such as int