Lung ultrasound in nephrology: Basics, applications, limitations, and future directions

Figure 3 Eight-zone B-line summaries obtained using a handheld ultrasound device (Philips Lumify^®) in a patient with end-stage kidney disease. A: Pulmonary edema following a missed hemodialysis session, with three or more B-lines counted by the machine in each lung zone; B: Marked improvement after 35 liters of ultrafiltration, now showing only one to two B-lines per zone, though there remains potential for further improvement with additional fluid removal.