Imaging

Those who care for patients with pulmonary, critical care or sleep disorders rely heavily on chest radiology and pathology to determine diagnoses. The Southwest Journal of Pulmonary, Critical Care & Sleep publishes case-based articles with characteristic chest imaging and related pathology.

The editor of this section will oversee and coordinate the publication of a core of the most important chest imaging topics. In doing so, they encourage the submission of unsolicited manuscripts. It cannot be overemphasized that both radiologic and pathologic images must be of excellent quality. As a rule, 600 DPI is sufficient for radiographic and pathologic images. Taking pictures of plain chest radiographs and CT scans with a digital camera is strongly discouraged. The figures should be cited in the text and numbered consecutively. The stain used for pathology specimens and magnification should be mentioned in the figure legend. Those who care for patients with pulmonary, critical care or sleep disorders rely heavily on chest radiology and pathology to determine diagnoses. The Southwest Journal of Pulmonary, Critical Care & Sleep publishes case-based articles with characteristic chest imaging and related pathology. The editor of this section will oversee and coordinate the publication of a core of the most important chest imaging topics. In doing so, they encourage the submission of unsolicited manuscripts. It cannot be overemphasized that both radiologic and pathologic images must be of excellent quality. As a rule, 600 DPI is sufficient for radiographic and pathologic images. Taking pictures of plain chest radiographs and CT scans with a digital camera is strongly discouraged. The figures should be cited in the text and numbered consecutively. The stain used for pathology specimens and magnification should be mentioned in the figure legend.

Rick Robbins, M.D. Rick Robbins, M.D.

Medical Image of the Week: Undulating Arterial Waveform

Figure 1. Arterial line and oxygen saturation tracings demonstrating variability with inspiration, a sign of volume responsiveness.

Volume responsiveness assessed by variation in arterial line tracing demonstrating either stroke volume variation, systolic pressure variation, or pulse pressure variation has been shown to be far superior to traditional static indicators of preload responsiveness as they consider cardiopulmonary interactions (1). Additionally, variability in the O2 sat tracing has also been shown to be a reliable indicator of volume responsiveness (2).  

Jarrod M. Mosier, MD and John W. Bloom, MD

Emergency Medicine-Critical Care Program

Division of Pulmonary and Critical Care

University of Arizona

Tucson, Arizona

References

  1. Marik PE, Baram M. Noninvasive hemodynamic monitoring in the intensive care unit. Crit Care Clin. 2007;23(3):383-400. [CrossRef] [PubMed]
  2. Feissel M, Teboul JL, Merlani P, Badie J, Faller JP, Bendjelid K. Plethysmographic dynamic indices predict fluid responsiveness in septic ventilated patients. Intensive Care Med. 2007;33(6):993-9. [CrossRef] [PubMed] 

Reference as: Mosier JM, Bloom JW. Medical image of the week: undulating arterial waveform. Southwest J Pulm Crit Care. 2013;7(5):315. doi: http://dx.doi.org/10.13175/swjpcc153-13 PDF

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