How engineers and clinicians developed the ultrasound diagnostic scanner and how its use in obstetrics became controversial. To its proponents, the ultrasound scanner is a safe, reliable, and indispensable aid to diagnosis. Its detractors, on the other hand, argue that its development and use are driven by the technological enthusiasms of doctors and engineers (and the commercial interests of manufacturers) and not by concern to improve the clinical care of women. In some U.S. states, an ultrasound scan is now required by legislation before a woman can obtain an abortion, adding a new dimension to an already controversial practice. Imaging and Imagining the Fetus engages both the development of a modern medical technology and the concerted critique of that technology. Malcolm Nicolson and John Fleming relate the technical and social history of ultrasound imaging—from early experiments in Glasgow in 1956 through wide deployment in the British hospital system by 1975 to its ubiquitous use in maternity clinics throughout the developed world by the end of the twentieth century. Obstetrician Ian Donald and engineer Tom Brown created ultrasound technology in Glasgow, where their prototypes were based on the industrial flaw detector, an instrument readily available to them in the shipbuilding city. As a physician, Donald supported the use of ultrasound for clinical purposes, and as a devout High Anglican he imbued the images with moral significance. He opposed abortion—decisions about which were increasingly guided by the ultrasound technology he pioneered—and he occasionally used ultrasound images to convince pregnant women not to abort the fetuses they could now see. Imaging and Imagining the Fetus explores why earlier innovators failed where Donald and Brown succeeded. It also shows how ultrasound developed into a "black box" technology whose users can fully appreciate the images they produce but do not, and have no need to, understand the technology, any more than do users of computers. These "images of the fetus may be produced by machines," the authors write, "but they live vividly in the human imagination."

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.

In 1726, an illiterate woman from Surrey named Mary Toft announced that she had given birth to 17 rabbits. This study recreates the story of this incident and shows how it illuminates 18th-century beliefs about the power of imagination and the problems of personal identity.

Obstetrical emergencies can be among the most stressful events an emergency physician will face in their entire career. The purpose of this book is to provide an evidence-based, practical approach to the wide spectrum of obstetric complications an emergency physician must be prepared to manage throughout all trimesters pregnancy as well as postpartum, including complications of assisted reproductive technology, bleeding, precipitous delivery and preterm labor. Clinical pearls and pitfalls are highlighted throughout. The approach to the pregnant patient with trauma, non-pregnancy-related abdominal pain, or in cardiac arrest is discussed. Updates in the classification and management of the hypertensive disorders of pregnancy are presented. Recent controversies surrounding the use of anti-emetics for first trimester nausea and vomiting and the use of a beta-hCG discriminatory zone for the evaluation of pregnancy of unknown location are also addressed. Obstetrical support services vary widely between different facilities, and Emergency Department Management of Obstetric Complications is written for emergency clinicians in all practice settings. This book provides useful information for daily practice as well as preparation for rarely encountered and potentially life-threatening events.

This open access book deals with imaging of the abdomen and pelvis, an area that has seen considerable advances over the past several years, driven by clinical as well as technological developments. The respective chapters, written by internationally respected experts in their fields, focus on imaging diagnosis and interventional therapies in abdominal and pelvic disease; they cover all relevant imaging modalities, including magnetic resonance imaging, computed tomography, and positron emission tomography. As such, the book offers a comprehensive review of the state of the art in imaging of the abdomen and pelvis. It will be of interest to general radiologists, radiology residents, interventional radiologists, and clinicians from other specialties who want to update their knowledge in this area.

In contemporary Western culture, the word "fetus" introduces either a political subject or a literal, medicalized entity. Neither of these frameworks does justice to the vast array of religious literature and oral traditions from cultures around the world in which the fetus emerges as a powerful symbol or metaphor. This volume presents essays that explore the depiction of the fetus in the world's major religious traditions, finding some striking commonalities as well as intriguing differences. Among the themes that emerge is the tendency to conceive of the fetus as somehow independent of the mother's body — as in the case of the Buddha, who is described as inhabiting a palace while gestating in the womb. On the other hand, the fetus can also symbolically represent profound human needs and emotions, such as the universal experience of vulnerability. The authors note how the advent of the fetal sonogram has transformed how people everywhere imagine the unborn today, giving rise to a narrow range of decidedly literal questions about personhood, gender, and disability.

A version of the OpenStax text