Dr. Roy Kwak

Economics
I'm working my tail off but not getting any work done (Part 3 of 3)
Do you feel like you're busier than ever, but you're not getting anything done? Radiologist Dr. Roy Kwak wraps up his three-part series on productivity in radiology with this article.
April 15, 2021
2021 04 15 01 09 9425 Business Clock Time Stopwatch 400
Economics
I'm working my tail off but not getting any work done (Part 2 of 3)
Do you feel like you're busier than ever, but you're not getting anything done? Radiologist Dr. Roy Kwak has felt that way too, and he explains why in the second part of a three-part series.
March 24, 2021
2021 03 03 21 09 7356 Doctor Tired 400
Practice Management
I'm working my tail off but not getting any work done (Part 1 of 3)
Do you feel like you're busier than ever, but you're not getting anything done? Radiologist Dr. Roy Kwak has felt that way too, and he explains why in the first of a three-part series.
February 9, 2021
2017 01 31 14 35 01 124 Doctor Stressed 400
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Top Stories
Lung Cancer
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What causes lung cancers to be missed on screening?
Incomplete smoking history documentation appears to be one of the reasons.
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Molecular Imaging
Early PET/CT feasible in women with suspected breast cancer
Doctor Patient Consult Tablet
Womens Imaging
Study highlights risk-based breast cancer screening; ACR responds
At RSNA 2025, thoracic radiologists debated using autonomous AI for chest radiograph interpretation. They also fielded many audience questions and comments as well.
AI
Is AI ready for autonomous reads of chest x-rays?
Ai Face
AI
Patients support AI in radiology, but not as a standalone reader
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What causes lung cancers to be missed on screening?
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Early PET/CT feasible in women with suspected breast cancer
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Early imaging is not only more patient-friendly but also has the potential to simplify clinical workflows.
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Study highlights risk-based breast cancer screening; ACR responds
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A study showing the potential benefits of risk-based breast cancer screening has drawn criticism from the ACR.
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A debate at RSNA 2025 reviewed the current use of autonomous AI for chest radiographs and assessed future opportunities.
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At RSNA 2025, thoracic radiologists debated using autonomous AI for chest radiograph interpretation. They also fielded many audience questions and comments as well.
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A majority of survey respondents would not agree to AI as a sole reader.
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The results could indicate that follow-up chest CT may not be necessary in this situation.
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Predicting when athletes can safely return to play after an injury is key.
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Phase I trial reveals the potential of a new PSMA-PET tracer
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The radiotracer detected more lesions in men with metastatic disease than F-18 piflufolastat.
December 9, 2025
Scans in a 73-year-old man with biochemically recurrent prostate cancer (prostate-specific antigen level of 0.5 ng/mL) who underwent PET/CT with 9.4 mCi of F-18 piflufolastat and a second PET/CT examination with 8.1 mCi of copper 61-NODAGA (1,4,7-triazacyclononane,1-glutaric acid-4,7-acetic acid)–prostate-specific membrane antigen for imaging and therapy (Cu-61 PSMA I&T) 24 days apart, with no intervening therapy. Maximum intensity projection (MIP) images obtained (A) 1 hour after F-18 piflufolastat administration and (B) 1, (C) 2, and (D) 4 hours after Cu-61 PSMA I&T administration are shown. Physiologic uptake is seen in the lacrimal glands, salivary glands, liver, spleen, kidneys, ureters, and bladder. Pathologic uptake in pelvic nodal metastases is labeled with arrows. The F-18 piflufolastat PET/CT MIP image reveals two avid pelvic nodal metastases (arrows). Cu-61 PSMA I&T PET/CT scans demonstrate three avid pelvic nodal metastases on 1-hour and 2-hour images (arrows); five avid pelvic nodal metastases were suspected on the 4-hour image (arrows).
Radiologists can designate nonmass lesions on breast ultrasound
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Breast radiologists achieved moderate to substantial interreader agreement for classifying nonmass lesions on ultrasound.
December 9, 2025
Images depict a 50-year-old woman with a lesion detected during screening ultrasound. (A) Transverse and (B) longitudinal images reveal a 0.5-cm hypoechoic lesion (arrow) in the left breast. (C) Transverse color Doppler ultrasound image does not show an increase in vascularity. Two readers classified the lesion as a mass, whereas two others categorized it as a nonmass lesion, leading to its designation as a controversial nonmass lesion. Ultrasound-guided core needle biopsy and subsequent pathologic examination confirmed a nonproliferative breast change.
Long COVID's neurological effects persist
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MRI proves effective for tracking results of obesity interventions
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MRI is a powerful tool to monitor skeletal muscle adaptations during lifestyle interventions for obesity, researchers noted.
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Obesity Text2
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