Chapter 1689: 1632 Corrected Echocardiogram (Alliance Leader Bright Sunshine Rain Bonus Chapter 5)

Zheng Ren had no emotional fluctuation, didn't notice the other's rudeness at all, and inserted the film into the viewer.

Like the images seen in the System Space, there were two upright X-ray films and a CT 3D reconstruction.

The bullet entered about one-third of the way along the medial side of the right clavicle. The chest X-ray showed the bullet within the cardiac silhouette at the lower heart margin, with no hemothorax or pneumothorax.

The clavicle fracture site had already undergone external fixation surgery, which is clearly visible.

Yet the CT 3D reconstruction failed to locate the bullet's exact position.

Zheng Ren glanced at the film and began reviewing the medical record.

According to the injured person's own account, at the time of injury he made a forward-leaning motion; the rest of the history had no useful reference.

Checking the surgical records of the Medical University Affiliated Hospital still yielded nothing meaningful.

Zheng Ren felt somewhat lost.

On the upright plain film, the bullet lay below the cardiac shadow, but the CT 3D reconstruction showed nothing; this wasn't a technical limitation—even mentally reconstructing it, I saw no bullet image.

Cardiac color Doppler, conventional four-chamber color Doppler, still didn't reveal the bullet's location, only mild tricuspid regurgitation.

Zheng Ren hesitated slightly, then logically concluded the bullet was missing.

Yet the two X-ray films showed the bullet had not changed position.

The patient's hemodynamics were stable, with heart rate 96 bpm, blood pressure 110/70 mmHg, respiratory rate 17/min; ECG and cardiac troponin T and other blood indicators were normal.

Could it be inside the heart? Zheng Ren suddenly had this thought.

Ordinary echocardiography didn't show the bullet, so let's try correcting it.

M-mode echocardiography is prone to distortion of results when the ultrasound beam is misaligned.

There are dedicated studies on the problem of echocardiographic angular error and seeking simple, effective correction methods, though they are rarely used clinically.

Measuring cardiac structural parameters must follow the orthogonal law; based on the mathematical model of left ventricular geometry, it is proven that the error value relates to the true value via a function of the cosine of the angular deviation.

Thus a mathematical expression for correcting the error was created, providing a simple method to correct error using the cosine function of the measured deviation angle.

Seeing Zheng Ren silently looking at the film, Director Tian curled his lip and coldly said, "Section Chief Ma, if Old Gu isn't coming, we can go. What do you mean by bringing this little doctor?"

"Director Tian, you've had enough!" Section Chief Ma snapped: "This is Doctor Zheng Ren, this year's Nobel Prize nominee—not some little doctor."

"Nobel Prize?" Director Tian blinked, but still scoffed, "That's just the Intervention Department's thing? Nonsense—clinical procedures don't win Nobel Prizes. It's like…"

Saying this, he gave two cold laughs.

"It's like that group buying a prize at the American Music Awards, going on stage just to show their face, lip-syncing and faking the dance." The team-leading professor beside Director Tian said.

Section Chief Ma truly couldn't stay seated.

He thought it was highly likely, but you just blurted it out right in front of the person involved—isn't that slapping them in the face?

Whether they want to sing or eat "Little Apple," what's it to you?

If 912 wants to play these games, let them play. If you want to mess with it and have the ability, do it yourself! Standing here directly exposing the emperor's new clothes—what's the point?

If this isn't handled well, the two deans will definitely have to step in eventually.

If it gets to that point, it'll eventually escalate to the department…

Section Chief Ma didn't dare think further.

Such mud-slinging incidents have happened two or three times in the past twenty years, each shaking the entire medical community.

Watching the drama from the sidelines is great, but when it involves yourself, it's absolutely not pleasant.

"Section Chief Ma, what do you mean by this?" Lin Ge said gloomily, "Comrade Zheng Ren is a member of the Health Group, highly skilled, just returned from completing a mission in Nanyang. Either you guys at the Medical University Affiliated Hospital wanted a consultation, or you couldn't find the problem and called our 912 people just to vent?"

"……" Section Chief Ma was helpless.

Damn it, they'll surely seize any opportunity to crush cardiothoracic surgery completely, letting them get so arrogant.

"The CT looks fine, but it's due to superimposition in imaging. After correction, we can confirm the bullet is inside the heart." Zheng Ren said calmly.

Lin Ge was a bit hesitant; if Old Boss Zheng couldn't locate the bullet, no matter how fiercely we kicked up a fuss on our side, it would be useless.

But if Old Boss Zheng finds the bullet, he'll seize the high ground, and we won't be able to take him down!

As for what Old Boss Zheng says, Lin Ge couldn't care less. Based on his "rich" clinical experience, Old Boss Zheng is never wrong!

Zheng Ren still paid no attention to what others were doing; after discovering the issue in the 3D reconstruction, he went to the System Space, selected to purchase a surgery, and entered the System Operating Room.

Surgical training begins!

Opening the chest, the sternum is split, the buzzing sound of the sternal saw echoes in the System Operating Room.

While doing it, Zheng Ren felt somewhat endangered, possibly due to Su Yun.

For such a major surgery—extracting a bullet that has wandered into the heart—if we don't call him, will he turn against us?!

Never mind that; we must first confirm from anatomy that the bullet is indeed inside the heart.

Opening the mediastinum, Zheng Ren fixed the heart with an eight-claw tool and incised the right ventricle.

A yellow-orange bullet appeared in the field of view.

Not imagined buckshot, but a standard-issue bullet.

The bullet lay in the right ventricular septum; after removal and suturing the heart, there was no active bleeding, and the surgery was declared complete.

The surgery wasn't difficult for Zheng Ren.

At the moment the surgery finished, Zheng Ren suddenly had another thought.

This position seems accessible for bullet removal via interventional surgery, without opening the chest.

This bizarre idea even startled Zheng Ren himself.

What was originally a "simple" surgery thus became extremely complicated.

Should we try it?

Yet this idea welled up from his heart, and Zheng Ren could no longer restrain his desire for this arcane technique.

Try it?

If we try, we'll try.

Calming his mind and steadying his breath, Zheng Ren recalled the bullet's location and the possibility of removing it.

It was still possible.

Gunshot wound; the patient was fortunate to have no major injury, which was a stroke of heavenly luck. Yet Zheng Ren still wanted to reduce the harm suffered by overseas workers, even a little bit more.

Isn't it appropriate to spend some time testing a new Shou Bing method?

Yes, and it is very necessary.

Zheng Ren himself held deep respect for those state‑enterprise employees who toiled overseas. Although it might seem somewhat "wasteful," since surgery could solve the problem,

But he still wanted to give it a try.

The procedure differed from previous ones; Zheng Ren, in the Experiment subject's awake and sedated state, used ultrasound‑cardiac guidance to puncture the right femoral Vein with a 16‑Fr E sheath.

The guidewire and Catheter entered the femoral Vein, then proceeded into the inferior cava Vein, and finally reached the right ventricle.