Mark Kalmar

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Mark Kalmar is the CEO of Texas Radiology Associates, one of the largest radiology groups in the U.S.

Practice Management

Shaping the future of radiology in 2025: Trends, threats, and opportunities

Mark Kalmar of Texas Radiology Associates discusses the key issues facing radiology in 2025.

January 14, 2025

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Tracking and quantitative analysis of diaphragmatic motion and projected lung area (PLA) at dynamic chest radiography (DCR) in a 55-year-old healthy man during deep breathing. (A) Posteroanterior radiograph with purple and green lines indicating the right and left lateral diaphragm apices, respectively. (B) Graph of diaphragmatic motion (in millimeters; y-axis) over time (i.e., frame number; x-axis). The software tracked the position of the diaphragm apex at DCR to obtain these amplitude-time plots of diaphragmatic motion (right lung, purple; left lung, green). The dark blue line corresponds to the frame representing the end of inspiration; the light blue line corresponds to the frame representing the end of expiration. (C) Posteroanterior radiograph shows the PLA (outline), which is the area surrounded by the medial edge of the ribs, the diaphragm, and the edge of the mediastinum. (D) Graph of PLA (in millimeters squared; y-axis) over time (i.e., frame number; x-axis). The software automatically tracked the boundaries of the lung fields and obtained the time-varying curves of the bilateral lung field areas. The blue line corresponds to the frame representing the end of inspiration.

Dynamic chest radiography effective for diagnosing COPD

The technique can serve as an alternative to pulmonary function tests for diagnosing chronic obstructive pulmonary disease (COPD).

Gadolinium

Study reports low NSF rates following GBCA administration

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CEUS finds residual liver cancer after downstaging therapy

Research Money

Venture capital investment rising in radiology

Proton Therapy

Proton therapy effective for patients with oropharyngeal cancer

Kelly Brock

December 16, 2025

Chris Wood

November 19, 2025

Erik Jacobsson

November 18, 2025

Erez Meltzer

November 18, 2025

Giuseppe Scappatura

September 10, 2025

Giuseppe Scappatura

John Memarian

August 18, 2025

Angela Adams

August 5, 2025

Jordan Bazinsky

June 12, 2025

Sanjeev Bhalla, MD, and Mensur Koso, MD

May 8, 2025

Deborah Barnes

June 7, 2024

Erik L. Ridley

October 4, 2010

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