SAN MATEO, Calif.--(BUSINESS WIRE)--May 21, 2025--
RapidAI, the gold standard and global leader in neurovascular AI-based clinical decision support and enterprise radiology solutions, today announced new study findings that underscore its continued leadership in stroke imaging. The findings emphasize that not all AI is created equal, with results showing that RapidAI’s clinically deep algorithms deliver superior accuracy in detecting medium vessel occlusions (MeVOs) compared to Viz.ai.
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The data, presented as a late-breaking abstract at the European Stroke Organisation Conference (ESOC) 2025, analyzed 1,591 consecutive stroke cases at a comprehensive stroke center. Of the 1,122 eligible cases, RapidAI detected 93% (109) of MeVOs using CT Perfusion alone, compared to 70% (82) by Viz.ai.
“CT Perfusion is a powerful tool, but its full value is only realized when paired with high-performing software, especially in complex cases with smaller occlusions like MeVOs,” said Harmeet Sachdev, MD, lead investigator and neurologist. “RapidAI consistently identified more occlusions than Viz in this study, echoing what we saw in the DUEL study with large vessel occlusions. The story the data tells is clear: not all imaging tools are equally equipped to interpret complex stroke cases.”
MeVOs refer to occlusions in smaller, yet still crucial, arteries in the brain, such as the M2/M3 segments of the middle cerebral artery or the A1/A2 and P1/P2 segments of the anterior and posterior cerebral arteries. These blockages can cause severe damage if left untreated but are notoriously difficult to identify without high-performing imaging tools. The substantial number of MeVOs missed by the Viz.ai software could lead to significant delays in diagnosis and treatment.
The accuracy of Rapid CT and MR perfusion imaging for estimating core and penumbra has been extensively validated in the landmark clinical trials of DEFUSE 2, SWIFT PRIME, EXTEND-IA, and DEFUSE 3. RapidAI is the only software demonstrated to predict the subsequent infarct volume based on initial perfusion imaging. In addition, RapidAI is the only perfusion software with an FDA indication for selecting patients for mechanical thrombectomy.
“These real-world clinical findings validate what sets RapidAI apart. Deeper clinical algorithms that not only detect more but empower providers with greater clarity and confidence,” said David Stoffel, MD, chief business officer at RapidAI. “Accurate perfusion imaging is essential for identifying subtle but serious strokes. Without it, critical cases can go unrecognized, delaying treatment when every minute counts.”
The study, titled “AI Detection of Medium Vessel Occlusions: Evaluating Performance of RapidAI vs Viz.ai CT Perfusion in 1,591 Consecutive Code Strokes”, was presented at ESOC 2025.
About RapidAI
RapidAI is the world leader in AI-driven medical imaging analysis and coordinated care. With the industry’s most validated clinical AI platform, we empower care teams to rapidly, precisely, and confidently manage life-threatening conditions. Trusted by thousands of hospitals in 100+ countries, RapidAI delivers the deepest level of clinical decision support on the market to help accelerate the time to treatment and enhance patient outcomes. We go beyond the algorithm to drive care team collaboration and efficiencies that expand access to life-saving interventions. At RapidAI, we establish new standards for care teams and the patients they treat.
Example of a radiologist confirmed M2 occlusion correctly identified by RapidAI CTP (left) and missed by Viz.ai CTP (right)
MINNEAPOLIS (AP) — The Minnesota Timberwolves were missing star Anthony Edwards again.
Their poise was present and accounted for.
With Edwards absent for the second straight game on Sunday with soreness in his right foot, his teammates picked up the slack after a sluggish start — and delivered another steely performance down the stretch on the way to a 117-103 victory over Sacramento.
The Timberwolves outscored the Kings 29-19 over the final 12 minutes, a league-leading eighth time this season they've had a 10-plus-point advantage in the fourth quarter.
“I think our composure down the stretch has gotten a lot better. Our ability to make the right read — and certainly shot making — has helped in those moments,” coach Chris Finch said.
The Timberwolves (17-9), who have won seven of their last eight games, exacted a measure of revenge for their 117-112 overtime loss at Sacramento on Nov. 24 when they blew a 10-point lead with less than three minutes remaining in regulation.
That game came three nights after they fumbled an eight-point lead with 49 seconds left at Phoenix and lost 114-113.
“We talked about how we need to be better in closing games and the themes that popped up,” Finch said, “and guys have done a good job of addressing that.”
Edwards has been considered day-to-day with his availability. Finch said before the game the injury “hasn't calmed down to the point where he's able to go.”
Backup point guard Mike Conley was also sidelined on Sunday, the 19-year veteran's second straight absence due to a right Achilles tendon injury. The short-handed backcourt meant another start for Bones Hyland, who has recently worked his way into a more meaningful role. Then center Rudy Gobert left the game midway through the third quarter for what the team announced as personal reasons.
The absence of the four-time NBA Defensive Player of the Year award winner down the stretch forced Naz Reid to play the last 20 minutes of the game. The 2024 Sixth Man of the Year award winner finished with 20 points and 11 rebounds and made sure the interior defense didn't collapse without the long arms of Gobert.
“A lot of the times we kind of understand the sense of urgency in the second half,” Reid said. “It’s nice to kind of have that at the end of the game, but I think we just kind of figure it out as the game goes on. As the second half comes, we kind of all-the-way turn it on, which is like not normal, but we’ve been getting the wins.”
Edwards missed four games earlier this season with a strained right hamstring. The three-time All-Star, who is eighth in the NBA with an average of 28.7 points per game, has already tallied his most absences since the 2021-22 season when he played in 72 games.
With the Timberwolves in a slower stretch of the schedule, Edwards could get eight days of rest while only missing the two games. Minnesota hosts Memphis on Wednesday.
“It’s such a bummer, but sometimes it’s good for some players,” Hyland said. “Sometimes it’s just God opening a door for you. You still want to be there for your teammate if he’s injured, be a good person, good teammate, but also step up. When someone goes down, we’re all a team.”
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Minnesota Timberwolves head coach Chris Finch looks on during the first half of an NBA basketball game against the Sacramento Kings, Sunday, Dec. 14, 2025, in Minneapolis. (AP Photo/Matt Krohn)
Minnesota Timberwolves guard Anthony Edwards watches from the bench during the first half of an NBA basketball game against the Golden State Warriors, Friday, Dec. 12, 2025, in San Francisco. (AP Photo/Godofredo A. Vásquez)
Minnesota Timberwolves guard Anthony Edwards, left, and Golden State Warriors guard Stephen Curry speak after an NBA basketball game, Friday, Dec. 12, 2025, in San Francisco. (AP Photo/Godofredo A. Vásquez)
Minnesota Timberwolves guard Anthony Edwards, center, reacts from the bench during the second half of an NBA basketball game against the Golden State Warriors, Friday, Dec. 12, 2025, in San Francisco. (AP Photo/Godofredo A. Vásquez)
