You look, but you don’t see
Vision is an automatic act, it keeps us aware of our environment to react before a danger or an opportunity. When we want to get more information, we concentrate our minds and our eyes over an object or situation, in a more conscious and active way. After analyzing an
Continue reading Clinical reasoning and the Emperor new clothes: the problem with perception in Radiology
A 70-year-old male had a diagnosis of bladder cancer. One month before, he presented with fever and chills after chemotherapy, coincident with neutropenia and thrombocytopenia. A chest x-ray showed a basal right image with doubt about a condensation. He started with antibiotics and all the symptoms resolved.
Continue reading Thinking Aloud: when reasoning calls for action
Many clinical decisions are based nowdays in a radiological report. Radiologist have a difficult task when they have to search for metastases in a patient with a disseminated tumor. The most common errors are satisfaction of search (after you find something you don´t look for more) or “tunnel vision” (an incomplete study of the image).
How many lesions you see in this video, quite similar to the radiologist environment?
Continue reading Missing an image: perception in Radiology
Tunnel vision is a cognitive bias associated to radiology when a finding preclude a total observation of the visual field missing an important piece of information. A similar situation could happen when a surgeon focused his or her intervention over a segment without a complete physical or functional review of the anatomical area involved.
Two narrative examples will help to understand this concept.. Continue reading Tunnel vision in surgery: looking for anatomy