RSNA Centennial Article: Gone but Not Completely forgotten— pictorial review of "antiquated" radiologic procedures [corrected].

The field of diagnostic and therapeutic radiology has always been characterized by constant innovation and creativity to evolve to its current form. There are numerous imaging techniques that were once prevalent but have become outdated and were replaced by the current examinations and modalities, which improve diagnostic accuracy and patient outcomes. Many of these outdated examinations were first described in the journal Radiology during its first 100 years of existence and were subsequently able to be disseminated across its vast readership to become the standard of care across the nation and the world.

Cisterna chyli at routine abdominal MR imaging: a normal anatomic structure in the retrocrural space.

The cisterna chyli, a dilated lymphatic sac in the retrocrural space, represents the origin of the thoracic duct. It is seen in approximately half of lymphangiographic studies and 20% of autopsies. Highly fluid-sensitive magnetic resonance (MR) imaging sequences such as single-shot rapid acquisition with refocused echoes, which are currently used in many abdominal MR imaging protocols, frequently result in the depiction of this structure.

Simultanagnosia through the eyes of an artist.

An 87-year-old artist experienced a top-of-the-basilar-artery embolic stroke secondary to atrial fibrillation and manifested a visual agnosia. Prior to her stroke, she painted scenes solely from memory. During her stroke recovery, her serial drawings and paintings revealed selective attention to the left lower quadrant, with important aspects of the whole image "clipped," as if missing from her internal representation of the whole object.

Local staging of pancreatic carcinoma with multi-detector row CT: use of curved planar reformations initial experience.

Purpose: To evaluate the utility of curved planar reformations compared with standard transverse images in the assessment of pancreatic tumors.

Materials And Methods: Forty-three patients suspected of having pancreatic tumors underwent contrast material-enhanced biphasic multi-detector row computed tomography (CT). Curved planar reformations were generated along the pancreatic duct, common bile duct, and major mesenteric vessels.